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.
- CAMSHAFTS
- CONNECTING RODS
- CRATE ENGINES
- CYLINDER HEADS
- EXHAUST MANIFOLDS
- EXTERNAL ENGINE COMPONENTS
- GASKETS & SEALS
- GIRDLE
- GLOW PLUGS
- HARMONIC DAMPER
- MAIN BEARINGS
- OIL PUMP
- PISTONS / RINGS
- PUSHRODS
- REBUILD KITS
- ROCKER ARMS
- ROD BEARINGS
- STUDS / BOLTS
- VALVE SPRINGS / RETAINERS
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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PPE 116112535 MANIFOLDS AND UP-PIPES-SILVER 2017+ GM DURAMAX 6.6L L5P
PACIFIC PERFORMANCE ENGINEERING
$1,520.99The PPE 116112535 Manifolds and Up-Pipes-Silver 2017+ GM Duramax 6.6L L5P are the ultimate upgrade for your vehicle. These high-flow manifolds crafted from cast, high-sil moly ensure maximum power and flow characteristics while lowering exhaust gas...$1,520.99 -
PPE 118021400 VALVE COVER KIT - NO PILLARS 2004.5-2010 GM DURAMAX 6.6L LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$269.99Dress 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...$269.99 -
PPE 118021418 VALVE COVER KIT BLACK MATTE 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 118021423 VALVE COVER KIT GOLD MATTE 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 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
$539.99PPE raises the bar with the 118034700 Head Stud Kit engineered specifically for the 2017-2023 GM 6.6L Duramax L5P engine. This kit is meticulously crafted to cater to the demands of high-performance diesel engines, where superior holding power and...$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.The PPE 119000630 Coolant Bypass Tube is an exceptional...$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.The PPE 119000730 Coolant Bypass Tube is an essential...$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
$53.99Enhance the performance and durability of your 2001-2020 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5P engine with the PPE 119000820 Coolant Block-Off Plate. This precision-engineered billet aluminum block-off plate in sleek black finish is a superior upgrade...$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
$22.49From 2001 to 2016, General Motors powered their 6.6L Duramax LB7/LLY/LBZ/LMM/LML engines, and with them came the need for reliable components like the PPE 119020009 Heater Hose Connector in Stainless Steel. When it comes to the HVAC system in 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
$197.99The PPE 119030100 Coolant Tube Pump to Oil Cooler is a top-quality performance upgrade designed for the 2001-2023 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML/L5P models. Crafted from durable 304 stainless steel, this custom coolant pipe boasts superior corrosion...$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
$197.99The PPE 119030130 Coolant Tube Pump to Oil Cooler is a premium aftermarket upgrade designed for the 2001-2023 GM 6.6L Duramax engines, including LB7, LLY, LBZ, LMM, LML, and L5P models. This coolant tube is meticulously crafted from high-quality 304...$197.99 -
PPE 119100100 FAN CLUTCH DELETE NUT 2001-2022 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P
PACIFIC PERFORMANCE ENGINEERING
$35.99The PPE 119100100 Fan Clutch Delete Nut is a premium automotive accessory designed to enhance the performance of 2001-2022 GM 6.6L Duramax engines. Compatible with Duramax LB7, LLY, LBZ, LMM, LML, and L5P models, this meticulously crafted 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 HardnessThe PPE 168030144 Silicone Bushings offer an exceptional upgrade for your GM 6.6L Duramax LB7/LLY/LBZ models from 2001 to 2010, ensuring optimal performance and longevity. Crafted from high-quality silicone material with a...$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 HardnessThe PPE 168030154 Silicone Bushings are engineered for exceptional performance and durability, designed specifically for 2001-2010 GM 6.6L Duramax engines (LB7, LLY, LBZ). Crafted from high-quality silicone material with a...$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 YellowThe PPE 168030164 High-Performance Silicone Bushing is engineered specifically to enhance the durability and performance of your 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ engines. Crafted from...$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 HardnessThe PPE 168030174 High-Performance Silicone Bushing is a crucial enhancement for those seeking superior durability and performance in their GM 6.6L Duramax LB7, LLY, or LBZ models manufactured between 2001 and 2010...$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 -
ATS 204-900-4248 PULSE FLOW EXHAUST MANIFOLD KIT 2001-2004 DURAMAX 6.6L LB7
ATS DIESEL
$1,053.88The ATS 204-900-4248 Pulse Flow Exhaust Manifold Kit for 2001-2004 Duramax 6.6L LB7 engines is a superior aftermarket upgrade designed to enhance the performance and reliability of your vehicle. Engineered to provide less restriction than stock manifolds...$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
$435.00The aFe 46-71080A Street Series Engine Oil Pan is here to revolutionize the way you care for your GM Diesel Trucks V8-6.6L (td) from 2011 to 2016. With an increased oil capacity of approximately one quart over the stock pan, this oil pan ensures better...$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
$435.00The aFe POWER Street Series Engine Oil Pan Raw w/ Machined Fins for GM Diesel Trucks 01-10 V8-6.6L (td) is a superior upgrade for your vehicle’s oil system. With a focus on increased performance and protection, this oil pan offers advanced features to...$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
$478.17Enhance the performance and longevity of your GM Diesel Truck with the AFE 46-71080B aFe POWER Pro Series Engine Oil Pan. Designed to optimize your engine's oil capacity, this oil pan offers approximately one quart more capacity than the stock pan,...$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
$478.17The aFe POWER Pro Series Engine Oil Pan in Black with Machined Fins is a top-of-the-line upgrade designed specifically for GM Diesel Trucks from 2001 to 2010 with a V8-6.6L engine. This premium oil pan offers a range of innovative features to optimize...$478.17 -
BD DIESEL EXHAUST MANIFOLD - DRIVERS SIDE 01-10 DURAMAX - 1041460
BD DIESEL
$190.95The BD Diesel 1041460 Exhaust Manifold, specifically designed for the 2001-2010 GM Duramax 6.6L LB7 / LLY / LBZ / LMM engines, brings a new level of performance to your vehicle. This premium upgrade replaces the factory driver's side manifold, known for...$190.95 -
BD DIESEL FUEL INJECTOR INSTALL KIT 01-04 DURAMAX LB7 - 1050141
BD DIESEL
$793.95The BD Diesel 1050141 Fuel Injector Install Kit for 2001-2004 GM Duramax 6.6L LB7 engines is a comprehensive kit designed to simplify the process of injector installation. This all-in-one kit includes essential components such as an injector line set,...$793.95 -
GATOR FASTENERS HDB66 HARMONIC DAMPER BOLT 2001-2019 DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML
GATOR FASTENERS
$29.99The GATOR FASTENERS HDB66 HARMONIC DAMPER BOLT is a crucial component designed specifically for Chevrolet and GMC 6.6L Duramax engines manufactured between 2001 and 2019. This powerhouse of a bolt ensures that your vehicle's harmonic damper remains...$29.99 -
GATOR FASTENERS HSK6265 HEAVY DUTY HEAD STUD KIT 1982-2000 GM DIESEL 6.2L/6.5L
GATOR FASTENERS
$289.99The GATOR FASTENERS HSK6265 HEAVY DUTY HEAD STUD KIT is the ultimate solution for maintaining the longevity and durability of your 1982-2000 GM Diesel 6.2L/6.5L engine. Designed to outperform standard head bolts, these upgraded head studs are essential...$289.99 -
GATOR FASTENERS HSK66 HEAVY DUTY HEAD STUD KIT 2001-2016 GM DURAMAX LB7/LLY/LBZ/LMM/LML
GATOR FASTENERS
$524.99The Gator Fasteners HSK66 Heavy Duty Head Stud Kit is the ultimate solution for maintaining the longevity and performance of your 6.6L Duramax engine from 2001 to 2016. By upgrading your head bolts to these high-quality head studs, you can ensure that...$524.99 -
GATOR FASTENERS HSK66L5P HEAVY DUTY HEAD STUD KIT 2017-2021 GM DURAMAX 6.6L L5P
GATOR FASTENERS
$574.99Improve the performance and durability of your 6.6L Duramax engine with the GATOR FASTENERS HSK66L5P Heavy Duty Head Stud Kit designed specifically for the 2017-2021 GM Duramax L5P diesel engine. Say goodbye to worrying about your truck's head gaskets...$574.99 -
GATOR FASTENERS MSK667Y HEAVY DUTY MAIN STUD KIT 2001-2005 GM DURAMAX 6.6L LB7/LLY
GATOR FASTENERS
$234.99The Gator Fasteners MSK667Y Heavy Duty Main Stud Kit for 2001-2005 GM Duramax 6.6L LB7/LLY engines is the ultimate solution for ensuring a secure hold on your engine's bottom end. Whether you're working on a powerful tow rig, a race truck, or your trusty...$234.99 -
GATOR FASTENERS MSK66ZM HEAVY DUTY MAIN STUD KIT 2006-2010 GM DURAMAX 6.6L LLY/LBZ/LMM
GATOR FASTENERS
$234.99Gator Fasteners MSK66ZM Heavy Duty Main Stud Kit is the ultimate solution for reinforcing and securing the bottom end of your 6.6L Duramax engine. Whether you're looking to enhance the performance of your tow rig, race truck, or daily driver, these main...$234.99 -
GATOR FASTENERS RBK66 HEAVY DUTY ROD BOLT KIT 2001-2010 GM DURAMAX LB7/LLY/LBZ/LMM
GATOR FASTENERS
$209.99The GATOR FASTENERS RBK66 HEAVY DUTY ROD BOLT KIT is the ultimate solution for maintaining the longevity and reliability of your 2001-2010 GM Duramax LB7/LLY/LBZ/LMM Silverado/Sierra 2500/3500 6.6L engine. Crafted with precision and durability in mind,...$209.99 -
BANKS 51007 RACING EXHAUST MANIFOLD RACE PORTED 1.77 INCH X 1.58 INCH INLET PORTED 2.12 INCH OUTLET 2001-2016 GM DURAMAX 6.6LLBZ-LML
BANKS
$725.00Elevate your LBZ-LML 6.6L Duramax's performance to new heights with the BANKS 51007 Racing Exhaust Manifold. Crafted specifically for racers, this race-ported manifold boasts a 1.77 inch x 1.58 inch inlet port and a 2.12 inch outlet, designed to maximize...$725.00 -
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 BANKS 42737 BIG HOSS RACING INTAKE MANIFOLD SYSTEM NATURAL 2001-2016 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML stands out as a top-tier performance upgrade for your vehicle. Specifically designed for Duramax engines, this...$2,079.00 -
BD DIESEL E-PAS POSITIVE AIR SHUT-OFF 07.5-15 DURAMAX - 1036758
BD DIESEL
$699.95The BD Diesel 1036758 E-PAS Positive Air Shut-Off is your safeguard against the rare but potentially catastrophic Diesel Engine Runaway phenomenon. Just as you have measures in place for other emergencies, this electronic device offers peace of mind by...$699.95 -
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
$415.95The 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...$415.95 -
XDP XD355 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR 2001-2007 GM DURAMAX 6.6L LB7/LLY
XTREME DIESEL PERFORMANCE
$429.95Enhance 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...$429.95 -
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
$349.95The 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...$349.95 -
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| 01-22 GM DURAMAX | 03-18 CUMMINS
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 FOR 11-16 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 FOR 01-16 GM DURAMAX 6.6L/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-BRAB-D1 BILLET ROCKER ARM BRIDGE SET 2001-2019 GM DURAMAX 6.6L/LBZ/LMM/LML/L5P
FLEECE PERFORMANCE
$512.54Enhance the performance and durability of your GM 6.6L Duramax engine with the Fleece Performance billet rocker arm bridges. Crafted to exceed factory standards, these bridges offer a substantial 2.5-time strength improvement, ensuring long-lasting...$512.54 -
PAI S400 EXHAUST OUTLET GASKET (T6) 89-24 CUMMINS - 132033
PAI INDUSTRIES
$6.74The 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#...$6.74 -
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
$671.37The AFE Power 46-40024 BladeRunner Ported Ductile Iron Exhaust Manifold is designed to enhance the performance and efficiency of GM diesel trucks from 2001 to 2016 with the V8-6.6L (TD) engine, including popular models like GMC Sierra and Chevrolet...$671.37 -
AFE POWER 46-70332 PRO SERIES ENGINE OIL PAN BLACK W/ MACHINED FINS GM DIESEL TRUCKS 01-10 V8-6.6L (TD) LB7/LLY/LBZ/LMM
AFE POWER
$527.84aFe Power presents the ultimate solution for GM Duramax engine protection with the 46-70332 Pro Series Engine Oil Pan. Specifically designed for 2001-2010 V8-6.6L TD models, this oil pan is a performance powerhouse. Crafted from high-quality cast...$527.84 -
FLEECE FPE-DMAX-OCADPT OIL COOLER ADAPTER 2001-2007 GM 6.6L DURAMAX/LBZ FOR 11-16 GM DURAMAX
FLEECE PERFORMANCE
$99.00Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler flexes. Fix: The Fleece Performance oil cooler adapter utilizes an integral square cut seal ring on...$99.00 -
MISHIMOTO MMODP-1415B MAGNETIC OIL DRAIN PLUG M14 X 1.5, BLACK 01-16 DURAMAX 12-16 POWERSTROKE
MISHIMOTO
$18.95Enhance the longevity and performance of your engine with the Mishimoto MMODP-1415B Magnetic Oil Drain Plug M14 x 1.5 in sleek black. Say goodbye to bearing damage and harmful metallic fragments circulating in your engine oil with this innovative...$18.95 -
PPE 149000105 HEAT/SOUND INSULATOR FIREWALL-BLACK 2001-2007 GM 6.6L DURAMAX LB7/LLY
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 118034300 HEAD STUD KIT 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$539.99The PPE 118034300 Head Stud Kit for 2001-2016 GM 6.6L Duramax engines – LB7/LLY/LBZ/LMM/LML models – is the pinnacle of robust fastening solutions for high-performance diesel engines. Engineered with precision and manufactured to exceed industry...$539.99 -
PPE 114003000 BILLET ALUMINUM ENGINE OIL FILLER CAP 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$31.49Crafted for precision and performance, the PPE 114003000 Billet Aluminum Engine Oil Filler Cap is the ultimate upgrade for your 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML. This top-of-the-line oil fill cap by PPE® is a testament to the fusion of...$31.49 -
PPE 114003005 VITON O-RING FOR OIL FILL CAP 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$5.39Enhance the performance of your 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML diesel truck with the PPE 114003005 Viton O-Ring for Oil Fill Cap. This precision-engineered O-ring from PPE® is designed to provide a perfect seal for your oil fill cap,...$5.39 -
PPE 118062030 UP-PIPE GASKETS (4 PCS) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$26.99Product Name: PPE 118062030 UP-PIPE GASKETS (4 PCS) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LMLElevate your truck's performance with the PPE 118062030 UP-PIPE GASKETS. This gasket set, consisting of four pieces, is precision-engineered and meticulously...$26.99 -
PPE 118062020 HIGH-PERFORMANCE MANIFOLD OVERSIZE PORT GASKETS (2 PCS) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$19.79Enhance the performance of your 2001-2016 6.6L GM Duramax engine with the PPE 118062020 High-Performance Manifold Oversize Port Gaskets. This set includes 2 pieces of meticulously crafted 304 SS Exhaust Manifold Gaskets designed to optimize your truck's...$19.79 -
PPE 114001050 COOLANT TUBE KIT FOR INTERNAL OIL COOLER DELETE 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$179.99The PPE 114001050 Coolant Tube Kit is a precision-engineered solution designed to complement the PPE Internal Oil Cooler Delete Kit for 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML engines. Crafted from high-quality 304 stainless steel, this kit ensures...$179.99 -
PPE 118062010 HIGH-PERFORMANCE MANIFOLD STANDARD PORT GASKETS (2 PCS) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$19.79Presenting the PPE 118062010 High-Performance Manifold Standard Port Gaskets, designed exclusively for 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML models. This exhaust manifold gasket set includes 2 pieces of standard port stainless steel gaskets,...$19.79 -
PPE 114028000 TUBING KIT FOR CRANKCASE BREATHER SET 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$35.99Tubing Kit for Crankcase Breather Set Crankcase Breather Tubing Kit by PPE®. Rubber tubing kit to complete installation. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...$35.99 -
MISHIMOTO MMBCC-UNI-BK BAFFLED OIL CATCH CAN UNIVERSAL - MANY APPLICATIONS
MISHIMOTO
$294.95The MISHIMOTO MMBCC-UNI-BK Baffled Oil Catch Can is a game-changer in the world of automotive accessories. Engineered with precision after extensive research and development by Mishimoto, this oil catch can is designed to separate oil particles from the...$294.95