ENGINE PARTS / ACCESSORIES
Engine Parts/Accessories
Upgrade and maintain your engine with our wide selection of engine parts and accessories. Whether you need a new cylinder head gasket set, piston kit, valve cover gasket set, or a billet oil cap, we have everything you need to keep your engine running smoothly.
Our collection includes top-quality products from trusted brands like MAHLE and FLEECE, designed specifically for GM 6.6L Duramax engines. From resonator delete plates to high-flow intake horns, we have the parts you need to enhance the performance of your vehicle.
If you're looking to replace or upgrade your cylinder heads, we offer both remanufactured and freedom series cylinder heads for various models of the Duramax engine. Rest assured that you are getting a high-quality product that will meet your engine needs.
We also provide piston kits in different sizes to accommodate your engine's requirements. Whether you need a standard size or an overbore option, we have the right piston kit for your vehicle.
Shop our selection of engine parts and accessories to find everything you need to keep your engine in peak condition. With our durable and reliable products, you can trust that your engine will continue to perform at its best for years to come.
Upgrade and maintain your engine with our wide selection of engine parts and accessories. Whether you need a new cylinder head gasket set, piston kit, valve cover gasket set, or a billet oil cap, we have everything you need to keep your engine running smoothly.
Our collection includes top-quality products from trusted brands like MAHLE and FLEECE, designed specifically for GM 6.6L Duramax engines. From resonator delete plates to high-flow intake horns, we have the parts you need to enhance the performance of your vehicle.
If you're looking to replace or upgrade your cylinder heads, we offer both remanufactured and freedom series cylinder heads for various models of the Duramax engine. Rest assured that you are getting a high-quality product that will meet your engine needs.
We also provide piston kits in different sizes to accommodate your engine's requirements. Whether you need a standard size or an overbore option, we have the right piston kit for your vehicle.
Shop our selection of engine parts and accessories to find everything you need to keep your engine in peak condition. With our durable and reliable products, you can trust that your engine will continue to perform at its best for years to come.
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CAMSHAFTS
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CONNECTING RODS
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CRATE ENGINES
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CYLINDER HEADS
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EXHAUST MANIFOLDS
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EXTERNAL ENGINE COMPONENTS
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GASKETS & SEALS
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GIRDLE
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GLOW PLUGS
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HARMONIC DAMPER
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MAIN BEARINGS
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OIL PUMP
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PISTONS / RINGS
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PUSHRODS
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REBUILD KITS
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ROCKER ARMS
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ROD BEARINGS
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STUDS / BOLTS
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VALVE SPRINGS / RETAINERS
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PPE 118021430 VALVE COVER KIT - POLISHED NO PILLARS 2004.5-2010 GM DURAMAX 6.6L LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$287.99Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision machined from billet to an overall thickness of .75 Inch/19mm, 6061-T6 aluminum on a...$287.99 -
PPE 118034700 HEAD STUD KIT 2017-2023 GM 6.6L DURAMAX L5P
PACIFIC PERFORMANCE ENGINEERING
$539.99Engine builders understand the need for high-strength holding power and fasteners that are precision-engineered to handle the extreme stresses that high-performance diesel engines produce. The PPE Head Stud Kit exceeds industry standards required by...$539.99 -
PPE 119000500 ENGINE COOLANT THERMOSTAT HOUSING 2001-2007 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000510 ENGINE COOLANT THERMOSTAT HOUSING - SINGLE SENSOR 2007.5-2010 GM 6.6L DURAMAX LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000515 ENGINE COOLANT THERMOSTAT HOUSING - DUAL SENSOR 2007.5-2010 GM 6.6L DURAMAX LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing. This high-quality...$269.99 -
PPE 119000530 THERMOSTAT HOUSING COVER RAW 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000533 THERMOSTAT HOUSING COVER POLISHED 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000540 THERMOSTAT HOUSING COVER RAW 2004-2010 GM 6.6L DURAMAX LLY/LMM
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000543 THERMOSTAT HOUSING COVER LLY LBZ LMM - POLISHED 2004-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$107.99Rust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt-on replacement adds style and function to your engine bay. The stainless steel...$107.99 -
PPE 119000630 COOLANT BYPASS TUBE - WATER PUMP TO THERMOSTAT HOUSING 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$116.99Specifically designed for use with the factory water pump. Fully polished 304 stainless steel construction looks great and prevents corrosion. The OEM mild steel pipe rusts and eventually leaks.$116.99 -
PPE 119000730 COOLANT BYPASS TUBE - WATER PUMP TO THERMOSTAT HOUSING 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$116.99Specifically designed for use with the factory water pump. Fully polished 304 stainless steel construction looks great and prevents corrosion. The OEM mild steel pipe rusts and eventually leaks.$116.99 -
PPE 119000820 COOLANT BLOCK-OFF PLATE - BILLET ALUMINUM - BLACK 2001-2020 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$53.99The OEM block off plate uses a gasket and can leak over time. The PPE billet block off plate is thicker and uses an O-ring seal. The O-ring is made from Viton more maximum longevity. The PPE billet block off plate installs using the OEM fasteners.$53.99 -
PPE 119001000 ENGINE COOLANT RETURN PIPE-304SS RAW 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$89.99 -
PPE 119001030 ENGINE COOLANT RETURN PIPE-304SS POLISHED 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$98.99 -
PPE 119001100 ENGINE COOLANT RETURN PIPE-304SS RAW 2004.5-2005 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$89.99 -
PPE 119001130 ENGINE COOLANT RETURN PIPE-304SS POLISHED 2004.5-2005 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$98.99 -
PPE 119001200 ENGINE COOLANT RETURN PIPE 304SS RAW 2006-2007 GM DURAMAX 6.6L LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$89.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$89.99 -
PPE 119001230 ENGINE COOLANT RETURN PIPE-304SS POLISHED 2006-2010 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$98.99Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking. Allows for installation of factory...$98.99 -
PPE 119020009 HEATER HOSE CONNECTOR-STAINLESS STEEL 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$22.49The plastic HVAC heater hose connectors are a common failure point when the older part fatigues from heat and vibration. This PPE Stainless Steel Heater Hose Connector will provide excellent durability and corrosion resistance for the life of your...$22.49 -
PPE 119030100 COOLANT TUBE PUMP TO OIL COOLER 304 STAINLESS STEEL RAW 2001-2023 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$197.99Specifically designed for use in conjunction with the factory oil cooler filter housing. This coolant pipe is custom fabricated with a heavy-duty flange. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone...$197.99 -
PPE 119030130 COOLANT TUBE PUMP TO OIL COOLER 304 STAINLESS STEEL POLISHED 2001-2023 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$197.99Specifically designed for use in conjunction with the factory oil cooler filter housing. This coolant pipe is custom fabricated with a heavy-duty flange. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone...$197.99 -
PPE 119100100 FAN CLUTCH DELETE NUT 2001-2022 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$35.992001-2022 GM 6.6L Duramax Fan Clutch Delete Nut$35.99 -
PPE 149000124 HEAT / SOUND INSULATOR FIREWALL-GOLD 2001-2007 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Diesel engines produce a lot of heat, especially in high-output situations like towing, racing, and light-to-light driving. Time to upgrade your tattered, dirty firewall insulation with the brand new PPE Insulator Firewall. Create a barrier between you...$269.99 -
PPE 149000135 HEAT / SOUND INSULATOR FIREWALL-SILVER 2001-2007 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Diesel engines produce a lot of heat, especially in high-output situations like towing, racing, and light-to-light driving. Time to upgrade your tattered, dirty firewall insulation with the brand new PPE Insulator Firewall. Create a barrier between you...$269.99 -
PPE 149002000 HEAT SHIELD BATTERY SIDE POST GOLD UNIVERSAL
PACIFIC PERFORMANCE ENGINEERING
$26.99Fits 2001-2007 GM Duramax LB7, LLY, LBZ Fits group 24, 34, 36R, 40R, 41, 64, 74, 78, 91, and 98R Batteries with side terminals, which are equivalent to batteries with 32.5 Inch - 37 Inch circumference. Full dimensions (LxWxH): 37.5 Inch x 6.25 Inch x 0...$26.99 -
PPE 168030140 ENGINE MOUNT KIT - 40 HARDNESS BLUE 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Stock engine mounts fail over time as bushings deteriorate. This causes vibration and engine noise to become more pronounced. Degradation is accelerated in high-power engine applications. PPE High-Performance Silicone Engine Mount Kits are engineered to...$269.99 -
PPE 168030144 SILICONE BUSHINGS - 40 HARDNESS BLUE 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$80.99Silicone Bushings - 40 Hardness$80.99 -
PPE 168030150 ENGINE MOUNT KIT 50 HARDNESS GREEN 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Stock engine mounts fail over time as bushings deteriorate. This causes vibration and engine noise to become more pronounced. Degradation is accelerated in high-power engine applications. PPE High-Performance Silicone Engine Mount Kits are engineered to...$269.99 -
PPE 168030154 SILICONE BUSHINGS - 50 HARDNESS GREEN 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$80.99Silicone Bushings - 50 Hardness$80.99 -
PPE 168030160 ENGINE MOUNT KIT 60 HARDNESS YELLOW 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Stock engine mounts fail over time as bushings deteriorate. This causes vibration and engine noise to become more pronounced. Degradation is accelerated in high-power engine applications. PPE High-Performance Silicone Engine Mount Kits are engineered to...$269.99 -
PPE 168030164 HIGH-PERFORMANCE SILICONE BUSHING - 60 HARDNESS YELLOW 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$80.99High-performance Silicone Bushing - 60 Hardness Yellow$80.99 -
PPE 168030170 ENGINE MOUNT KIT 70 HARDNESS RED 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$269.99Stock engine mounts fail over time as bushings deteriorate. This causes vibration and engine noise to become more pronounced. Degradation is accelerated in high-power engine applications. PPE High-Performance Silicone Engine Mount Kits are engineered to...$269.99 -
PPE 168030174 HIGH-PERFORMANCE SILICONE BUSHING - 70 HARDNESS RED 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$80.99Silicone Bushings - 70 Hardness$80.99 -
WEHRLI WCF100134 2020-2024 L5P DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM ENGINE OIL PAN
WEHRLI CUSTOM FABRICATION
$493.73The WEHRLI WCF100134 2020-2024 L5P Duramax WCFab X PPE High-Capacity Cast Aluminum Engine Oil Pan is the ultimate solution for enhancing your vehicle's engine performance and durability. Say goodbye to the inefficient stock oil pan and hello to the...$493.73 -
WEHRLI WCF100133 2017-2019 L5P DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM ENGINE OIL PAN
WEHRLI CUSTOM FABRICATION
$484.03Experience superior oil control and engine performance with the WEHRLI WCF100133 2017-2019 L5P DURAMAX WCFab X PPE High-Capacity Cast Aluminum Engine Oil Pan. Enhance your vehicle's capabilities by swapping out the inefficient stock oil pan with this...$484.03 -
WEHRLI WCF 100132 2011-2016 LML DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM ENGINE OIL PAN
WEHRLI CUSTOM FABRICATION
$396.73The WEHRLI WCF 100132 2011-2016 LML DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM ENGINE OIL PAN is the premium solution to replace the inefficient stock oil pan in your 2011-2016 LML Duramax engine. This high-capacity cast aluminum pan is meticulously...$396.73 -
WEHRLI WCF100131 2001-2010 LB7/LLY/LBZ/LMM DURAMAX WCFAB X PPE HIGH-CAPACITY CAST ALUMINUM OIL PAN
WEHRLI CUSTOM FABRICATION
$367.63The WEHRLI WCF100131 2001-2010 LB7/LLY/LBZ/LMM Duramax WCFab X PPE High-Capacity Cast Aluminum Oil Pan offers a superior solution to upgrade your vehicle. Designed to replace the stock steel oil pan, this product features a flat bottom high-capacity...$367.63 -
INDUSTRIAL INJECTION RTF26402 DURAMAX LB7 INJECTOR AND RETURN KIT (SERVICES 4 INJECTORS) 2001-2004 GM DURAMAX 6.6L LB8
INDUSTRIAL INJECTION
$17.44The Industrial Injection RTF26402 Duramax LB7 Injector and Return Kit is the essential solution for maintaining the optimal performance of your 2001-2004 GM Duramax 6.6L LB7 engine. This comprehensive kit is designed to service four injectors, making it...$17.44 -
ATS 204-900-4248 PULSE FLOW EXHAUST MANIFOLD KIT 2001-2004 DURAMAX 6.6L LB7
ATS DIESEL
$1,053.88ATS Pulse Flow Exhaust Manifolds for the 2001 to 2004 6.6L Duramax offer far less restriction than stock manifolds and up-pipes. Channel areas were increased dramatically resulting in a 26 percent increase in airflow. Not only will the Pulse Flow...$1,053.88 -
AFE 46-71080A aFe POWER Street Series Engine Oil Pan Raw w/ Machined Fins 11-16 GM Diesel Trucks V8-6.6L (td)
AFE POWER
$435.00Increased Oil Capacity:This oil pan has an increased oil capacity of approximately one quart over stock for better performance over a longer duration. Heater Port:Pre-tapped with a 1/2” NPT port, this pan is designed to accept standard oil heaters...$435.00 -
AFE 46-71070A aFe POWER Street Series Engine Oil Pan Raw w/ Machined Fins GM Diesel Trucks 01-10 V8-6.6L (td)
AFE POWER
$435.00Increased Oil Capacity:This oil pan has an increased oil capacity of approximately one quart over stock for better performance over a longer duration. Heater Port:Pre-tapped with a 1/2” NPT port, this pan is designed to accept standard oil heaters...$435.00 -
AFE 79-12002 Oil Cap - OVERSTOCK GM Diesel Trucks 01-16 V8-6.6L (td)
AFE POWER
$85.00This all "NEW" aFe oil cap gives styling a whole new aspect. Machined from durable CNC 6061-T6 billet aluminum for maximum strength and durability. This oil cap features eye-catching black chrome screws and a flawless matte black finish. Equipped with a...$85.00 -
AFE 46-71080B aFe POWER Pro Series Engine Oil Pan Black w/ Machined Fins 11-16 GM Diesel Trucks V8-6.6L (td)
AFE POWER
$478.17Increased Oil Capacity:This oil pan has an increased oil capacity of approximately one quart over stock for better performance over a longer duration. Heater Port:Pre-tapped with a 1/2” NPT port, this pan is designed to accept standard oil heaters...$478.17 -
AFE 46-71070B aFe POWER Pro Series Engine Oil Pan Black w/ Machined Fins GM Diesel Trucks 01-10 V8-6.6L (td)
AFE POWER
$478.17Increased Oil Capacity:This oil pan has an increased oil capacity of approximately one quart over stock for better performance over a longer duration. Heater Port:Pre-tapped with a 1/2” NPT port, this pan is designed to accept standard oil heaters...$478.17 -
BD DIESEL 1041460 EXHAUST MANIFOLD - DRIVERS SIDE 2001-2010 GM DURAMAX 6.6L LB7 / LLY / LBZ / LMM
BD DIESEL
$190.95The BD Full Bore Exhaust Manifold for the Chevy Duramax engine replaces factory driver's side "pinched down" unit, restoring exhaust flow and balances the V8 engine for smother running. Made from high-silicon ductile iron, the Full Bore is a direct,...$190.95 -
BD DIESEL 1050141 FUEL INJECTOR INSTALL KIT 2001-2004 GM DURAMAX 6.6L LB7
BD DIESEL
$769.95All in one kit for doing an injector install on an LB7 Duramax engine. Includes injector line set, valve cover gasket set, injector O-rings and seal washers, silicone sealant, and Permatex Red high-temp thread locker. FEATURES High quality gaskets...$769.95 -
GATOR FASTENERS HDB66 HARMONIC DAMPER BOLT 2001-2019 DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
GATOR FASTENERS
$29.99If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fasteners. Fitment Notes: 2001-2019 Chevy Duramax 6.6L 2001-2019 GMC Duramax 6.6L$29.99 -
GATOR FASTENERS HSK6265 HEAVY DUTY HEAD STUD KIT 1982-2000 GM DIESEL 6.2L/6.5L
GATOR FASTENERS
$289.99If you are wanting to keep your 6.2L or 6.5L Chevy/GMC Diesel on the road for the long haul, you need to replace your head bolts with upgraded head studs. These head studs have a much higher strength and will not stretch like the factory bolts will...$289.99 -
GATOR FASTENERS HSK66 HEAVY DUTY HEAD STUD KIT 2001-2016 GM DURAMAX LB7/LLY/LBZ/LMM/LML
GATOR FASTENERS
$524.99If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need to replace your head bolts with upgraded head studs. The Gator Fasteners Head Stud Kit is a must have in any high performance 2001-2016 GM 6.6L Duramax. To overcome head...$524.99 -
GATOR FASTENERS HSK66L5P HEAVY DUTY HEAD STUD KIT 2017-2021 GM DURAMAX 6.6L L5P
GATOR FASTENERS
$574.99If you are wanting to keep your LP5 6.6L Duramax on the road for the long haul, you need to replace your head bolts with upgraded head studs. These head studs have a much higher strength and will not stretch like the factory bolts will. This will help...$574.99 -
GATOR FASTENERS MSK667Y HEAVY DUTY MAIN STUD KIT 2001-2005 GM DURAMAX 6.6L LB7/LLY
GATOR FASTENERS
$234.99Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.6L together whether you're building a tow rig, race truck or just a daily driver. These fasteners have a much higher strength and will not stretch like the factory bolts...$234.99 -
GATOR FASTENERS MSK66ZM HEAVY DUTY MAIN STUD KIT 2006-2010 GM DURAMAX 6.6L LLY/LBZ/LMM
GATOR FASTENERS
$234.99Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your 6.6L together whether you're building a tow rig, race truck or just a daily driver. These fasteners have a much higher strength and will not stretch like the factory bolts...$234.99 -
GATOR FASTENERS RBK66 HEAVY DUTY ROD BOLT KIT 2001-2010 GM DURAMAX LB7/LLY/LBZ/LMM
GATOR FASTENERS
$209.99Siverado/Sierra 2500/3500 2001-10 6.6L Heavy Duty Rod Bolt Kit Gator Fasteners If you are wanting to keep your 6.6L Duramax on the road for the long haul, you need the high quality parts like these Gator Fastener Rod Bolts. These head studs have a much...$209.99 -
BANKS 42737 BIG HOSS RACING INTAKE MANIFOLD SYSTEM NATURAL 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
BANKS
$2,079.00Part of the Banks Racing line. The only purpose-built cast manifolds created for a Duramax. Provides tremendous flow and uniform air distribution. A Banks Racing product proven in the Banks Duramax Sidewinder S-10 diesel drag truck, the Big Hoss Intake...$2,079.00 -
BD DIESEL 1036758 E-PAS POSITIVE AIR SHUT-OFF 2007.5-2015 GM 6.6L DURAMAX LMM / LGH
BD DIESEL
$679.95Like a fire extinguisher in your house, or an earthquake kit, it's always better to be prepared. Although rare, Diesel Engine Runaway is caused when external hydrocarbons are drawn into the engine and can cause overspeeding and catastrophic engine...$679.95 -
XDP XD385 ROCKER ARM SHAFTS 2001-2019 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P
XTREME DIESEL PERFORMANCE
$484.95The XDP XD385 Rocker Arm Shafts are an essential upgrade for owners of 2001-2019 GM Duramax 6.6L LB7/LLY/LBZ/LMM/LML/L5P engines seeking improved performance and durability. Engineered to address common oiling issues present in these engines, the XDP...$484.95 -
XDP XD384 BILLET ROCKER ARM VALVE BRIDGE SET 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
XTREME DIESEL PERFORMANCE
$459.95The XDP XD384 Billet Rocker Arm Valve Bridge Set offers a significant upgrade to the factory valvetrain of your modified 2001-2016 GM 6.6L Duramax engine. Your stock rocker arm bridges were engineered for standard output levels and may struggle under the...$459.95 -
XDP XD350 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR 2011-2019 GM DURAMAX 6.6L LML/L5P
XTREME DIESEL PERFORMANCE
$565.95The XDP XD350 Wrinkle Black HD High Output Alternator is the perfect solution to enhance the charging system of your 2011-2019 GM 6.6L Duramax. Designed for Duramax owners who prioritize performance, this alternator ensures that your aftermarket...$565.95 -
XDP XD351 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR 2007.5-2010 GM DURAMAX 6.6L LMM
XTREME DIESEL PERFORMANCE
$399.95The XDP XD351 Wrinkle Black HD High Output Alternator is a must-have upgrade for your 2007.5-2010 GM 6.6L Duramax LMM. This alternator not only enhances the capability of your charging system but also adds a touch of style under the hood.Designed for...$399.95 -
XDP XD355 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR 2001-2007 GM DURAMAX 6.6L LB7/LLY
XTREME DIESEL PERFORMANCE
$419.95Enhance the performance of your 2001-2007 GM 6.6L Duramax engine with the XDP Wrinkle Black HD High Output Alternator XD355. Designed to address the common issue of an insufficient charging system in Duramax engines, this alternator is a game-changer for...$419.95 -
XDP XD344 BILLET COOLANT BLOCK-OFF PLATE 2001-2022 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P
XTREME DIESEL PERFORMANCE
$64.95The XDP XD344 Billet Coolant Block-Off Plate is the perfect solution for owners of 2011-2017 GM 6.6L Duramax engines looking to permanently eliminate troublesome coolant leaks from the rear housing on their LML and L5P engines. Say goodbye to the...$64.95 -
XDP XD224 220 AMP ALTERNATOR HIGH OUTPUT 2001-2007 GM DURAMAX 6.6L LB7/LLY
XTREME DIESEL PERFORMANCE
$299.95The XDP XD224 220 Amp Alternator is the solution to effectively power up your 2001-2007 GM Duramax 6.6L LB7/LLY with aftermarket upgrades. Whether you're adding on plows, air compressors, lighting, or performance electronics, the XDP High Output...$299.95 -
XDP XD250 GEAR REDUCTION STARTER WRINKLE BLACK 1982-2000 GM DIESEL 6.2L/6.5L
XTREME DIESEL PERFORMANCE
$369.95The XDP XD250 Gear Reduction Starter in Wrinkle Black is a reliable powerhouse designed for your 1982-2000 GM 6.2L/6.5L Diesel engine. Built to tackle extreme conditions, XDP's HD Gear Reduction Starter outperforms factory starters with its speed,...$369.95 -
XDP XD251 GEAR REDUCTION STARTER WRINKLE BLACK 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
XTREME DIESEL PERFORMANCE
$299.95The XDP XD251 Gear Reduction Starter in Wrinkle Black is the ultimate solution for your 2001-2016 GM Duramax 6.6L LB7/LLY/LBZ/LMM. Designed to excel in the most extreme conditions, this starter is faster, stronger, and more durable than factory...$299.95 -
XDP XD315 3/8 INCH STREET PERFORMANCE PUSHRODS 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
XTREME DIESEL PERFORMANCE
$345.95The XDP XD315 3/8 Inch Street Performance Pushrods are designed to enhance the performance of your 2001-2016 GM 6.6L Duramax engine. Built to withstand the increased cylinder pressure, high engine RPM, and elevated valve spring pressures commonly seen in...$345.95 -
XDP XD316 7/16 INCH COMPETITION & RACE PERFORMANCE PUSHRODS 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
XTREME DIESEL PERFORMANCE
$378.95Enhance the performance and power of your 2001-2016 GM 6.6L Duramax engine with the XDP Pushrods 7/16 inch Competition & Race Performance XD316. Designed to restore lost power from the valvetrain, these pushrods are the perfect upgrade for your modified...$378.95 -
XDP XD331 CRANKSHAFT PIN KIT 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
XTREME DIESEL PERFORMANCE
$159.95Ensure your 2001-2016 GM 6.6L Duramax engine stays protected against catastrophic failures with the XDP Duramax Crankshaft Pin Kit XD331. This kit is designed to address the common issue of sheared dowel pins in the crankshaft that can lead to...$159.95 -
WEHRLI WCF100373 17-22 L5P DURAMAX BILLET EXHAUST MANIFOLD KIT W/ GASKETS AND ARP HARDWARE
WEHRLI CUSTOM FABRICATION
$1,450.15Enhance the performance of your 2017-2024 Duramax engine with the WEHRLI WCF100373 17-22 L5P Billet Exhaust Manifold Kit. Crafted by WCFab, these high-strength billet steel exhaust manifolds are expertly TIG-welded to replace the factory cast components...$1,450.15 -
WEHRLI WCF100363 01-16 CHEVROLET DURAMAX EXHAUST MANIFOLD KIT W/ GASKETS & HARDWARE
WEHRLI CUSTOM FABRICATION
$1,289.13Enhance the performance of your 2001-2016 Chevrolet Duramax with the WEHRLI WCF100363 01-16 Chevrolet Duramax Exhaust Manifold Kit. Crafted by WCFab, these billet exhaust manifolds are designed to replace the restrictive factory components, boosting...$1,289.13 -
WEHRLI WCF100189 04.5-2010 DURAMAX LLY/LBZ/LMM CRANKCASE VENT (PCV) FITTING KIT - BILLET BLACK ANODIZED
WEHRLI CUSTOM FABRICATION
$44.62Enhance the performance and durability of your 2004.5-2010 LLY/LBZ/LMM Duramax engine with the WEHRLI WCF100189 Crankcase Vent (PCV) Fitting Kit. Engineered to replace the fragile plastic OEM fittings, this kit offers superior quality and longevity...$44.62 -
WEHRLI WCF100443 2001+ GM DURAMAX LB7/LLY/LBZ/LMM/LML/L5P BILLET OIL FILL CAP - BLACK ANODIZED
WEHRLI CUSTOM FABRICATION
$49.47Enhance the look and functionality of your 2001-2024 Duramax engine bay with the WEHRLI WCF100443 Billet Oil Fill Cap in sleek Black Anodized finish. Crafted from high-quality CNC machined Billet Aluminum, this complete oil cap offers a direct OEM...$49.47 -
WEHRLI WCF100442 2001+ GM DURAMAX LB7/LLY/LBZ/LMM/LML/L5P BILLET OIL FILL CAP - CLEAR ANODIZED
WEHRLI CUSTOM FABRICATION
$49.47Enhance the performance and aesthetics of your 2001-2024 Duramax engine with the WEHRLI WCF100442 2001+ GM DURAMAX LB7/LLY/LBZ/LMM/LML/L5P BILLET OIL FILL CAP - CLEAR ANODIZED from WCFab. Crafted from high-quality Billet Aluminum with a sleek Clear...$49.47 -
WEHRLI WCF100796 06-10 LBZ/LMM DURAMAX MAP SENSOR SEAL & BRACKET
WEHRLI CUSTOM FABRICATION
$15.52The WEHRLI WCF100796 06-10 LBZ/LMM DURAMAX MAP SENSOR SEAL & BRACKET is a must-have product for owners of late-year LMM DURAMAX engines looking to install WCFab y-bridge or turbo kits. This specialized kit includes a Map Sensor Seal and Bracket designed...$15.52 -
FLEECE FPE-HAR-MU-PT-1 REPLACEMENT SENSOR CONNECTOR WITH PIGTAIL| 2001-2022 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P | 2003-2018 CUMMINS 5.9L/6.7L 24V
FLEECE PERFORMANCE
$37.99The FLEECE FPE-HAR-MU-PT-1 Replacement Sensor Connector with Pigtail is your essential solution for various GM Duramax and Cummins vehicles, ensuring your vehicle gets back on the road promptly. This replacement connector with a 4.5" pigtail fits a range...$37.99 -
FLEECE FPE-HAR-CP3-EXT CP3 REGULATOR EXTENSION HARNESS FOR 45246 2011-2016 GM DURAMAX 6.6L LML
FLEECE PERFORMANCE
$29.99Product Description:The FLEECE FPE-HAR-CP3-EXT CP3 Regulator Extension Harness is the ideal solution for your 6.6L Duramax applications, specifically designed for use with Bosch CP3's. Our in-house production process integrates cutting-edge technology to...$29.99 -
FLEECE FPE-DMAX-OC-BLU OIL CAP BLUE 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
FLEECE PERFORMANCE
$39.99Enhance the look of your Chevy Duramax engine with the FLEECE FPE-DMAX-OC-BLU Oil Cap in striking blue color! This sleek billet aluminum oil cap is designed to fit 2001-2016 GM Duramax 6.6L LB7/LLY/LBZ/LMM/LML models, adding a touch of style to your...$39.99 -
FLEECE FPE-DUR-S2-PROD STAGE 2 PUSHRODS, 0.875 INCH 2001-2019 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P
FLEECE PERFORMANCE
$490.19Upgraded 7/16” diameter pushrods for GM’s Duramax 6.6L diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. These pushrods are designed to stand up to...$490.19 -
FLEECE FPE-BRAB-D1 BILLET ROCKER ARM BRIDGE SET 2001-2019 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P
FLEECE PERFORMANCE
$512.54Fleece Performance billet rocker arm bridges for the GM 6.6L Duramax. FEATURES These bridges offer a massive 2.5-time strength improvement over factory bridges. Machined from billet 8620 steel, the bridges are surface ground for...$512.54 -
PAI INDUSTRIES 132033 EXHAUST OUTLET GASKET-S400-T6- (CUMMINS OEM# 2866337) 1989-2024 CUMMINS 5.9L/6.7L 12V/24V
PAI INDUSTRIES
$7.25The PAI Industries 132033 Exhaust Outlet Gasket-S400-T6- designed for 1989-2024 Cummins 5.9L/6.7L 12V/24V engines is a high-quality replacement part that guarantees OEM-level fitment and functionality. This exhaust outlet gasket, with Cummins OEM#...$7.25 -
INDUSTRIAL INJECTION PDM-06037 DURAMAX LML 14MM GORILLA GIRDLE 2011-2016 GM DURAMAX 6.6L LML
INDUSTRIAL INJECTION
$1,321.76Enhance the durability and performance of your 2011-2016 GM Duramax 6.6L LML engine with the Industrial Injection PDM-06037 Duramax 14mm Gorilla Girdle Kit. Designed specifically for LML engines, this kit features the robust ½" thick Gorilla Girdle,...$1,321.76 -
INDUSTRIAL INJECTION PDM-07184 DURAMAX ROCKER ARM SPACER KIT 2001-2016 DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
INDUSTRIAL INJECTION
$214.78The Industrial Injection PDM-07184 Duramax Rocker Arm Spacer Kit offers a cutting-edge solution to enhance the performance and durability of your Duramax 6.6L LB7/LLY/LBZ/LMM/LML engine. Say goodbye to the limitations of factory springs with this...$214.78 -
INDUSTRIAL INJECTION PDM-06035 DURAMAX 14MM GORILLA GIRDLE 2001-2010 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM
INDUSTRIAL INJECTION
$1,321.76The INDUSTRIAL INJECTION PDM-06035 DURAMAX 14MM GORILLA GIRDLE is a premium upgrade for your 2001-2010 GM Duramax 6.6L LB7/LLY/LBZ/LMM engines. This 14mm Gorilla Girdle Kit is engineered with a robust ½" thick design, making it the toughest girdle...$1,321.76 -
INDUSTRIAL INJECTION PDM-LB7SH DURAMAX LB7 STOCK REMANUFACTURED HEADS 2001-2004 GM DURAMAX 6.6L LB8
INDUSTRIAL INJECTION
$1,409.66The Industrial Injection PDM-LB7SH Duramax LB7 Stock Remanufactured Heads are a premium solution for your 2001-2004 GM Duramax 6.6L LB7 engine. Designed as a direct replacement for LB7 Duramax engines, these remanufactured heads from Industrial Injection...$1,409.66 -
INDUSTRIAL INJECTION PDM-LB7RH DURAMAX LB7 PORTED & POLISHED CYLINDER HEADS 2001-2004 GM DURAMAX 6.6L LB8
INDUSTRIAL INJECTION
$4,231.15The Industrial Injection PDM-LB7RH Duramax LB7 Ported & Polished Cylinder Heads for the 2001-2004 GM Duramax 6.6L LB8 are a premium upgrade for racers and sled pullers looking to optimize their engine performance. These cylinder heads are meticulously...$4,231.15 -
INDUSTRIAL INJECTION PDM-LB7SH-TL DURAMAX LB7 STOCK REMAN HEADS W/ TORQUE LOCK CUPS 2001-2004 GM DURAMAX 6.6L LB8
INDUSTRIAL INJECTION
$2,224.63The Industrial Injection PDM-LB7SH-TL DURAMAX LB7 Stock Reman Heads with Torque Lock Cups for GM Duramax 6.6L LB7 engines (2001-2004) offer a comprehensive solution for a seamless factory replacement. Crafted with precision and quality in mind, these...$2,224.63 -
INDUSTRIAL INJECTION PDM-LLYSH DURAMAX LLY STOCK REMANUFACTURED HEADS 2004.5-2006 GM DURAMAX 6.6L LLY
INDUSTRIAL INJECTION
$1,409.66The Industrial Injection LLY Duramax Stock Remanufactured Heads offer a top-quality solution as a factory replacement for your 2004.5-2006 GM Duramax 6.6L LLY engine. Each head is meticulously remanufactured to ensure superior performance and durability...$1,409.66 -
INDUSTRIAL INJECTION PDM-LLYRH DURAMAX LLY PORTED & POLISHED CYLINDER HEADS 2004.5-2006 GM DURAMAX 6.6L LLY
INDUSTRIAL INJECTION
$3,254.47The Industrial Injection LLY Duramax Ported & Polished Cylinder Heads are meticulously crafted for the hardcore racer and sled puller. These heads are not your standard upgrade; they are designed to unleash maximum power and performance for your 2004...$3,254.47 -
INDUSTRIAL INJECTION PDM-LBZ/LMMSH LBZ/LMM DURAMAX LBZ/LMM STOCK REMAN HEADS 2006-2010 GM DURAMAX LBZ/LMM
INDUSTRIAL INJECTION
$1,409.66The Industrial Injection LBZ/LMM Duramax Stock Remanufactured Heads are meticulously crafted to provide engine performance with unparalleled precision. Designed as a direct factory replacement for 2006-2010 GM Duramax LBZ/LMM engines, these...$1,409.66 -
INDUSTRIAL INJECTION PDM-LBZ/LMMRH LBZ/LMM DURAMAX LBZ/LMM PORTED & POLISHED CYLINDER HEADS 2006-2010 GM DURAMAX LBZ/LMM
INDUSTRIAL INJECTION
$3,254.47Crafted to perfection for the discerning engine enthusiast, the Industrial Injection PDM-LBZ/LMMRH LBZ/LMM Duramax Ported & Polished Cylinder Heads 2006-2010 GM Duramax LBZ/LMM are a true masterpiece of engineering excellence.Beginning with a meticulous...$3,254.47 -
INDUSTRIAL INJECTION PDM-LMLSH DURAMAX LML STOCK REMANUFACTURED HEADS 2011-2016 GM DURAMAX 6.6L LML
INDUSTRIAL INJECTION
$1,409.66The Industrial Injection PDM-LMLSH Duramax LML Stock Remanufactured Heads for 2011-2016 GM Duramax 6.6L LML engines offer a reliable factory replacement solution, meticulously engineered to deliver top performance. Each head undergoes a comprehensive...$1,409.66 -
INDUSTRIAL INJECTION PDM-LMLRH DURAMAX LML PORTED & POLISHED CYLINDER HEADS 2011-2016 GM DURAMAX 6.6L LML
INDUSTRIAL INJECTION
$3,254.47The INDUSTRIAL INJECTION PDM-LMLRH DURAMAX LML PORTED & POLISHED CYLINDER HEADS for 2011-2016 GM DURAMAX 6.6L LML are meticulously crafted to enhance your engine's performance. Starting with a thorough cleaning process that includes high-pressure jet...$3,254.47 -
INDUSTRIAL INJECTION 44B801 DURAMAX 130LB. VALVE SPRING KIT 2001-2016 DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
INDUSTRIAL INJECTION
$678.24The Industrial Injection 44B801 Duramax 130lb. Valve Spring Kit is a high-quality performance upgrade designed to enhance the power and efficiency of your 2001-2016 6.6 Duramax engine. This comprehensive kit includes 32 conical valve springs, 32 billet...$678.24 -
INDUSTRIAL INJECTION PDM-360 DURAMAX 6.6L PERFORMANCE PISTON KITS (PRECISION MACHINED AND COATED) 2001-2016 GM DURAMAX 6.6L LLY/LB7/LMZ/LMM/LML
INDUSTRIAL INJECTION
$1,884.97Enhance the performance of your GM Duramax 6.6L engine with the Industrial Injection PDM-360 Duramax 6.6L Performance Piston Kits. These precision machined and coated pistons are designed for 2001-2016 GM Duramax 6.6L LLY/LB7/LMZ/LMM/LML models, offering...$1,884.97 -
INDUSTRIAL INJECTION PDM-298 DURAMAX 6.6L RACE PISTON KITS (PRECISION MACHINED AND COATED WITH FLY CUTS) 2001-2016 GM DURAMAX 6.6L LLY/LB7/LMZ/LMM/LML
INDUSTRIAL INJECTION
$3,243.00Crafted for high-performance engines, the INDUSTRIAL INJECTION PDM-298 DURAMAX 6.6L RACE PISTON KITS deliver unparalleled precision and durability. Designed for GM Duramax 6.6L LLY/LB7/LMZ/LMM/LML models from 2001 to 2016, these piston kits are a true...$3,243.00 -
INDUSTRIAL INJECTION PDM-362 DURAMAX 6.6L RACE PISTON KITS NO FLYCUT (FORGED PISTONS) 2001-2016 GM DURAMAX 6.6L LLY/LB7/LMZ/LMM/LML
INDUSTRIAL INJECTION
$3,199.14Enhance the performance of your GM Duramax 6.6L engine with the INDUSTRIAL INJECTION PDM-362 DURAMAX 6.6L RACE PISTON KITS. Specifically designed for the 2001-2016 GM Duramax 6.6L LLY/LB7/LMZ/LMM/LML models, these forged piston kits are engineered to...$3,199.14 -
AFE POWER 46-70342 PRO SERIES EXTRA DEEP ENGINE OIL PAN 2011-2016 GM 6.6L DURAMAX ( WITH 6" LIFT)
AFE POWER
$527.84Fitment of this pan requires a minimum 6in lift. aFe Power's new engine oil pan brings performance engineering to the protection of your GM Duramax engine. This oil pan is constructed out of durable cast aluminum with machined fins for maximum strength...$527.84 -
AFE POWER 46-70330 STREET SERIES EXTRA DEEP ENGINE OIL PAN 2001-2010 GM 6.6L DURAMAX ( WITH 6" LIFT)
AFE POWER
$478.17Fitment of this pan requires a minimum 6in lift. aFe Power's new engine oil pan brings performance engineering to the protection of your GM Duramax engine. This oil pan is constructed out of durable cast aluminum with machined fins for maximum strength...$478.17 -
AFE POWER 46-70340 STREET SERIES ENGINE OIL PAN RAW W/MACHINED FINS /EXTRA DEEP 2011-2016 GM 6.6L DURAMAX (WITH 6" LIFT)
AFE POWER
$478.17Fitment of this pan requires a minimum 6in lift. aFe Power's new engine oil pan brings performance engineering to the protection of your GM Duramax engine. This oil pan is constructed out of durable cast aluminum with machined fins for maximum strength...$478.17 -
AFE POWER 48-34009-PK TWISTED STEEL UP-PIPES & EXHAUST MANIFOLDS 2001-2004 GM 6.6L DURAMAX LB7 (FEDERAL EMISSIONS)
AFE POWER
$1,271.66DETAILS: Outflows the factory exhaust manifolds by 6%, improving performance and throttle response Compatible with factory up-pipes which allows for easy installation. Eliminates the flow restricting pinch of the factory drivers-side manifold The...$1,271.66 -
AFE POWER 46-40024 BLADERUNNER PORTED DUCTILE IRON EXHAUST MANIFOLD GM DIESEL TRUCKS 01-16 V8-6.6L (TD) LLY LBZ LMM LML
AFE POWER
$671.37Machined Ports:These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance. Auxiliary Ports:An Exhaust Gas Temperature (EGT) probe port is...$671.37