
ENGINE PARTS / ACCESSORIES
Engine Parts/Accessories
Cpp Diesel has all of the engine parts you need for your Duramax v8.
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.
Whether you're in need of vital replacements like cylinder head gaskets, valve cover gaskets, or piston kits, or looking to optimize your engine's capabilities with performance-enhancing accessories such as high-flow intake horns and resonator delete plates, we offer a comprehensive range to meet all your engine needs. Our remanufactured and freedom series cylinder heads are engineered for durability, ensuring top-notch performance whether you are restoring an engine or pushing boundaries on the road or track.
Finding the right fit for your engine is seamless with our various piston kits available in multiple sizes to accommodate both standard and overbore options. Each product is designed to ensure that your engine maintains its peak performance, allowing you to enjoy driving with confidence.
Investing in quality engine parts and accessories not only helps prevent costly repairs down the road but also assures that your vehicle operates efficiently and reliably. Browse our selection at Cpp Diesel to discover the exceptional engine parts and accessories that promise to keep your Duramax engine running at its best for years to come. With our commitment to quality and customer satisfaction, your engine will be in excellent hands.
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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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DORMAN 917-764 CRANKSHAFT POSITION (CKP) SENSOR 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$81.47This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage. Direct...$81.47 -
DORMAN 621-514 CLUTCH FAN BLADE 2001-2005 GM 6.6L DURAMAX LB7/LLY | 2006-2008 GM EXPRESS/SAVANA 6.6L DURAMAX LLY
DORMAN
$105.53Replace your damaged cooling fan blade with this direct replacement. This vehicle-specific application is engineered for a perfect fit and is made from quality materials to ensure durability and restore proper cooling system operation. Direct...$105.53 -
DORMAN 674-736HS EXHAUST MANIFOLD HEAT SHIELD (RIGHT) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$89.02Replace a loose or missing exhaust manifold heat shield without replacing the manifold itself. This direct replacement heat shield has been dimensionally verified to match the original and undergone material testing to ensure a reliable service life. ...$89.02 -
DORMAN 699-102 ACCELERATOR PEDAL POSITION SENSOR (APPS) (WITHOUT ADJUSTABLE PEDALS) 2004.5-2005 GM 2500HD/3500HD 6.6L DURAMAX LLY
DORMAN
$56.69This direct replacement accelerator pedal position sensor matches the fit and performance of a failed original equipment sensor to restore proper vehicle operation. Made of quality materials for a reliable service life. Ideal replacement - this...$56.69 -
DORMAN 902-2068 COOLANT THERMOSTAT HOUSING (UPPER) 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$57.90This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life. Ideal replacement -...$57.90 -
DORMAN 904-171 VALVE COVER AND ROCKER BOX GASKET KIT 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
DORMAN
$119.60This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions. ...$119.60 -
DORMAN 917-791 CRANKSHAFT POSITION (CKP) SENSOR 2004.5-2005 GM 6.6L DURAMAX LLY
DORMAN
$60.21This engine crankshaft position sensor is designed to match the fit and function of an original sensor to help ensure the engine control unit receives proper inputs when an original sensor has failed from heat or internal component damage. Direct...$60.21 -
DORMAN 300-702 VACUUM PUMP PULLEY 1988-2000 GM 6.2L/6.5L DIESEL
DORMAN
$150.40This vacuum pump pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability. Direct replacement - this vacuum pump pulley is...$150.40 -
DORMAN 904-413 GLOW PLUG CONTROLLER 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$162.89A properly functioning glow plug is essential to cold-weather starts. This direct replacement for the original part restores proper glow plug function and has been validated for specific vehicle years, make and models. Ideal solution - this diesel glow...$162.89 -
DORMAN 095-019 COPPER OIL DRAIN PLUG GASKET (25-PACK) 1994-2003 FORD 7.3L POWERSTROKE | 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
DORMAN
$23.72These oil drain plug gaskets are designed to specific sizes and standards for reliable replacement at every oil change. Direct replacement - these engine oil drain plug gaskets are made to match the fit and performance of the original equipment...$23.72 -
DORMAN 645-519 GLOW PLUG JUMPER WIRE PIGTAIL 1992-1999 GM 6.2L/6.5L DIESEL
DORMAN
$64.08Diesel engine having cold start issues or a check engine light? This replacement glow plug wiring harness matches the fit and function of the original equipment harness and is made of quality materials for durability and reliable performance. Ideal...$64.08 -
DORMAN 904-380 ROCKER BOX AND VALVE COVER GASKET KIT 2011-2017 GM 6.6L DURAMAX LML/L5P
DORMAN
$116.84This valve cover gasket is designed to match the fit, function and performance of an original equipment gasket on specified vehicles. Made of durable materials, it is engineered to help ensure a long-lasting seal under extreme underhood conditions. ...$116.84 -
DORMAN 300-825 ENGINE COOLING FAN PULLEY BRACKET 2001-2004 GM 6.6L DURAMAX LB7 2500HD/3500HD | 2003-2004 GM C4500/5500 KODIAK/TOPKICK 6.6L DURAMAX LB7
DORMAN
$318.95This engine cooling fan pulley bracket is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance. Direct replacement - this engine cooling fan pulley...$318.95 -
DORMAN 32114 EXHAUST MANIFOLD HARDWARE KIT 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$66.09This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance. Direct replacement - this exhaust manifold...$66.09 -
DORMAN 594-037 HARMONIC BALANCER 1988-2002 GM 6.2L/6.5L DIESEL
DORMAN
$199.25This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability. Ideal replacement - this harmonic...$199.25 -
DORMAN 921-046 ENGINE OIL DIPSTICK 2001-2007 GM SILVERADO/SIERRA 2500HD/3500HD 6.6L DURAMAX LB7/LLY/LBZ
DORMAN
$94.00This engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications. Level marks are clearly distinguished and properly gauged for accuracy. Ideal replacement - this engine oil dipstick is...$94.00 -
DORMAN 674-731 LEFT SIDE EXHAUST MANIFOLD 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$105.53This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair. Ideal replacement -...$105.53 -
DORMAN 918-478 POWER STEERING FLUID COOLER 2020-2023 GM SILVERADO/SIERRA 2500/3500 6.6L DURAMAX L5P
DORMAN
$108.46The original power steering cooler on certain vehicles fails when the wire-style fins corrode, bend and break. This Dorman OE FIX cooler features a more robust stacked-fin design for greater durability and longer service life. Improved design - instead...$108.46 -
DORMAN 904-936 EXHAUST GAS RECIRCULATION (EGR) COOLER (TO EGR BYPASS VALVE AT REAR, CURVED OUTLET FITTING) 2011-2014 GM 6.6L DURAMAX LML
DORMAN
$527.95This EGR cooler has been engineered to match the fit and function of the original EGR cooler on specific vehicle years, makes and models. It has undergone rigorous testing and OEM benchmarking to ensure reliability. Direct replacement - this EGR cooler...$527.95 -
DORMAN 65430 M12-1.75 OIL DRAIN PLUG PILOT POINT 2020-2023 FORD 6.7L POWERSTROKE | 2011-2023 FORD F-150 | 2008-2019 GM SILVERADO/SIERRA 2500HD/3500HD
DORMAN
$3.97This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal. Direct replacement - this engine oil drain...$3.97 -
GARRETT 763527-0712 TURBO VANE POSITION SENSOR 04.5-16 GM 6.6L DURAMAX
GARRETT
$285.95The GARRETT 763527-0712 Turbo Vane Position Sensor is a top-of-the-line component designed specifically for 2004.5-2016 GM 6.6L Duramax engines, including the LLY, LBZ, LMM, and LML models. This specialized sensor is engineered to provide precise and...$285.95 -
DORMAN 904-100 GLOW PLUG HARNESS RELAY 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$60.68This diesel glow plug relay is designed to match the fit and function of the original relay on specified vehicles, and is engineered for durability and reliable performance. Direct replacement - this diesel glow plug relay is designed to match the fit...$60.68 -
DORMAN 904-421 NITROGEN OXIDE (NOX) SENSOR (DOWNSTREAM) 2011-2014 GM 6.6L DURAMAX LML/LGH
DORMAN
$298.03The DORMAN 904-421 Nitrogen Oxide (NOx) Sensor (Downstream) for the 2011-2014 GM 6.6L Duramax LML/LGH vehicles is a precision-engineered replacement part designed to restore proper nitrogen oxide detection and ensure compliance with emission regulations...$298.03 -
DORMAN 904-422 NITROGEN OXIDE (NOX) SENSOR (UPSTREAM) 2011-2014 GM 6.6L DURAMAX LML | 2010-2014 GM 6.6L DURAMAX LGH
DORMAN
$341.09The DORMAN 904-422 Nitrogen Oxide (NOx) Sensor is the perfect solution for maintaining compliance with emissions regulations on select vehicles from 2011 to 2014 equipped with the GM 6.6L Duramax LML engine or the 2010-2014 GM 6.6L Duramax LGH motor...$341.09 -
DORMAN 902-2127 COOLANT THERMOSTAT HOUSING (UPPER) 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
DORMAN
$79.88The Dorman 902-2127 Coolant Thermostat Housing (Upper) for 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM vehicles is a premium replacement part offering durability and reliability. Engineered to perfectly match the fit of the original housing, this product is...$79.88 -
DORMAN 904-394 DIESEL EXHAUST FLUID (DEF) HEATER 2012-2016 GM 6.6L DURAMAX LML
DORMAN
$238.06The Dorman 904-394 Diesel Exhaust Fluid (DEF) Heater is the reliable solution to a common issue faced by certain vehicles with failing factory DEF heaters due to fluid intrusion. This OE FIX product from Dorman addresses this problem with an upgraded...$238.06 -
DORMAN 904-135 FUEL INJECTOR O-RING KIT 2011-2016 GM 6.6L DURAMAX LML/LGH
DORMAN
$26.79Fuel your vehicle with confidence using the DORMAN 904-135 Fuel Injector O-Ring Kit designed for 2011-2016 GM 6.6L Duramax LML/LGH engines. This top-quality kit offers direct replacements for the original O-rings on specified vehicles, ensuring a precise...$26.79 -
DORMAN 300-229 POWER STEERING PUMP PULLEY 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
DORMAN
$120.05The DORMAN 300-229 Power Steering Pump Pulley is a reliable and durable replacement part designed for 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM applications. Crafted with quality materials and precise engineering, this power steering pump pulley offers a...$120.05 -
DORMAN 926-160 LOWER RADIATOR HOSE O-RING 2006-2014 GM SILVERADO/SIERRA 2500 HD/3500HD 6.6L DURAMAX LBZ/LMM/LML (RADIATOR OUTLET)
DORMAN
$13.82Product Description:The Dorman 926-160 Lower Radiator Hose O-Ring is a critical component designed specifically for 2006-2014 GM Silverado/Sierra 2500 HD/3500HD 6.6L Duramax LBZ/LMM/LML trucks, addressing the common issue of lower radiator hose O-ring...$13.82 -
DORMAN 902-901 THERMOSTAT BYPASS PIPE 2001-2005 GM 6.6L DURAMAX LB7/LLY
DORMAN
$44.81The DORMAN 902-901 Thermostat Bypass Pipe for 2001-2005 GM 6.6L DURAMAX LB7/LLY engines is a reliable solution for ensuring optimal engine performance. Crafted to seamlessly replace the original bypass pipe, this component restores functionality to your...$44.81 -
DORMAN 264-473 ENGINE OIL PAN 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
DORMAN
$110.41The DORMAN 264-473 Engine Oil Pan is the reliable solution to address oil leaks in your vehicle. Specifically designed to fit 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM models, this oil pan is a direct replacement for the original equipment pan, ensuring...$110.41 -
DORMAN 918-400 DIESEL ENGINE OIL COOLER 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$365.57Enhance the performance and longevity of your 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML diesel engine with the DORMAN 918-400 Diesel Engine Oil Cooler. This premium-quality engine oil cooler serves as a reliable and direct replacement for the...$365.57 -
DORMAN 904-134 FUEL INJECTOR O-RING KIT 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
DORMAN
$58.03The DORMAN 904-134 Fuel Injector O-Ring Kit for 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM engines is a reliable solution for maintaining your vehicle's fuel system integrity. Designed as direct replacements for the original O-rings, this kit ensures a...$58.03 -
DORMAN 904-124 FUEL PRIMER SEAL KIT 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
DORMAN
$34.28The DORMAN 904-124 Fuel Primer Seal Kit is the perfect solution for repairing the fuel filter primer housing on 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM vehicles with precision and ease. This direct replacement kit is expertly designed to match the...$34.28 -
DORMAN 904-109 DIESEL GLOW PLUG POWER DISTRIBUTION STRAP 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$34.40The DORMAN 904-109 Diesel Glow Plug Power Distribution Strap for 2001-2004 GM 6.6L DURAMAX LB7 engines is a reliable and durable replacement part engineered to restore functionality to your vehicle. This power distribution strap is a direct replacement,...$34.40 -
DORMAN 674-736 EXHAUST MANIFOLD KIT - INCLUDES REQUIRED GASKETS AND HARDWARE 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$303.53The DORMAN 674-736 Exhaust Manifold Kit is the perfect solution for those in need of a reliable and high-quality replacement for their 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML vehicles. This precision-engineered manifold is crafted to seamlessly...$303.53 -
XDP XD624 ENGINE OIL PAN BOLT KIT (BLACK-PHOSPHATE) FOR 01-16 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$19.95XDP carries the XDP Engine Oil Pan Bolt Kit (Black-Phosphate) XD624 that will replace the stripped bolts on your 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML. These (18) Class 10.9 bolts feature 150,000 PSI tensile strength for durability and a black...$19.95 -
XDP XD533 BLACK-PHOSPHATE STARTER BOLT KIT FOR 01-22 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$9.95The XDP Starter Bolt Kit (Black-Phosphate) XD533 will replace the corroded starter bolts on your 2001-2022 GM 6.6L Duramax. The starter is situated in the lowest part of the engine compartment, where it is subjected to the elements like rain, mud, and...$9.95 -
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 -
AFE 46-71080A STREET SERIES ENGINE OIL PAN RAW W/ MACHINED FOR 11-16 GM 6.6L DURAMAX
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 STREET SERIES ENGINE OIL PAN RAW W/ MACHINED FOR 01-10 GM DURAMAX 6.6L
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
AFE POWER
$85.00Transform your engine with the aFe 79-12002 Oil Cap, expertly engineered for GM Diesel Trucks from 2001 to 2016 featuring the powerful V8 6.6L (td) engines. This oil cap not only enhances the sleek appearance of your engine bay but also ensures reliable...$85.00 -
AFE 46-71080B PRO SERIES ENGINE OIL PAN BLACK W/ MACHINED FOR 11-16 GM 6.6L DURAMAX
AFE POWER
$478.17Elevate your GM Diesel Truck's performance and longevity with the AFE 46-71080B Pro Series Engine Oil Pan. Designed specifically for the 2011-2016 GM 6.6L Duramax, this oil pan optimizes your engine's oil capacity, offering approximately one quart more...$478.17 -
AFE 46-71070B PRO SERIES ENGINE OIL PAN BLACK W/ MACHINED FOR 01-10 GM DURAMAX 6.6L
AFE POWER
$478.17Experience the pinnacle of engine performance with the aFe POWER Pro Series Engine Oil Pan, meticulously designed for GM Diesel Trucks from 2001 to 2010 featuring the V8-6.6L engine. This premium oil pan is engineered to maximize durability and...$478.17 -
AFE POWER 44- LF001 PRO GUARD HD OIL FILTER FOR 01-19 GM 6.6L DURAMAX
AFE POWER
$23.45Maximize the performance of your diesel engine with the AFE POWER 44-LF001 Pro GUARD HD Oil Filter, specifically engineered for 2001-2019 GM 6.6L Duramax models. This premium oil filter meets the demanding needs of diesel engines, enhancing filtration...$23.45 -
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 FOR 01-16 GM DURAMAX 6.6LLBZ-LML
BANKS
$725.00Part of the Banks Racing line. The best purpose-built cast exhaust manifolds created for racing the Duramax engine. Provides tremendous flow and uniform air distribution. If you are a racer and have an LBZ-LML 6.6L Duramax, Gale Banks Engineering offers...$725.00 -
XDP XD385 ROCKER ARM SHAFTS FOR 01-19 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$484.95The XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001-2019 GM 6.6L Duramax engines. From the factory, the oil supply to the rocker arm is shut off as the valve is opened. This lack of lubrication can...$484.95 -
XDP XD384 BILLET ROCKER ARM VALVE BRIDGE SET FOR 01-16 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$459.95The XDP Billet Rocker Arm Valve Bridge Set XD384 will greatly improve the factory valvetrain in your modified 2001-2016 GM 6.6L Duramax. The OE rocker arm bridges in your valvetrain were designed for stock output levels. Once modified, your Duramax...$459.95 -
XDP XD350 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR FOR 11-19 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$595.95Enhance the charging system in your 2011-2019 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator XD350. While many Duramax owners upgrade their truck for performance, the charging system is often overlooked until there is an issue...$595.95 -
XDP XD351 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR FOR 07.5-10 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$439.95The XDP Wrinkle Black HD High Output Alternator XD351 improves the capability of the charging system in your 2007.5-2010 GM 6.6L Duramax LMM and also increases underhood aesthetics. The LMM Duramax is known as an easy to modify workhorse, but the...$439.95 -
XDP XD355 WRINKLE BLACK HD HIGH OUTPUT ALTERNATOR FOR 01-07 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$429.95Increase the output of the charging system in your 2001-2007 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator XD355. The Duramax engine is a known powerhouse that is easy to modify, but the charging system is often forgotten about...$429.95 -
XDP XD344 BILLET COOLANT BLOCK-OFF PLATE FOR 01-22 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$64.95Put the XDP Billet Coolant Block-Off Plate XD344 in your 2011-2017 GM 6.6L Duramax to permanently eliminate coolant leaks from the rear housing on your LML and L5P engine. The factory cover uses a gasket and over time the plate can warp, and the gaskets...$64.95 -
CPP 220 AMP ALTERNATOR HIGH OUTPUT FOR 01-07 GM 2500/3500HD WITH DURAMAX ENGINE
CPP DIESEL
$299.95The CPP CPP224 220 Amp Alternator is an essential upgrade for your 2001-2007 GM 2500/3500HD equipped with a Duramax engine, especially if you're looking to enhance your vehicle's electrical performance. Designed to meet the demands of various aftermarket...$299.95 -
XDP XD250 GEAR REDUCTION STARTER WRINKLE BLACK FOR 82-00 GM DIESEL 6.2L/6.5L
XDP
$369.95You can rely on the XDP HD Gear Reduction Starter (New) Wrinkle Black XD250 to get your 1982-2000 GM 6.2L/6.5L GM Diesel running in the most extreme environments. XDPs HD Gear Reduction Starters are fast, strong, and durable, giving you the ability to...$369.95 -
CPP GEAR REDUCTION STARTER FOR 01-16 GM 2500/3500HD WITH 6.6L DURAMAX ENGINE
CPP DIESEL
$299.95You can rely on the CPP HD Gear Reduction Starter CPP251 to get your 2001-2019 GM 6.6L Duramax running in the most extreme environments. CPP's HD Gear Reduction Starters are fast, strong, and durable to give you the ability to turn over even the most...$299.95 -
XDP XD315 3/8 INCH STREET PERFORMANCE PUSHRODS FOR 01-16 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$349.95The XDP Pushrods 3/8 inch Street Performance XD315 eliminate the weak link in the valvetrain of your 2001-2016 GM 6.6L Duramax. The factory pushrods in your Duramax engine can hardly handle stock output levels. The increased cylinder pressure, high...$349.95 -
XDP XD316 7/16 INCH COMPETITION & RACE PERFORMANCE PUSHRODS FOR 01-16 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$378.95Restore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7/16 inch Competition & Race Performance XD316. The factory pushrods in your Duramax engine are not adequate to handle the stress from your modified engine...$378.95 -
XDP XD331 CRANKSHAFT PIN KIT FOR 01-16 GM 2500/3500HD WITH DURAMAX ENGINE
XDP
$159.95Avoid catastrophic engine failure from a sheared dowel pin in your 2001-2016 GM 6.6L Duramax with the XDP Duramax Crankshaft Pin Kit XD331. From the factory, your Duramax uses a dowel pin on the crankshaft to hold the balancer in place. In both stock and...$159.95 -
WEHRLI WCF100373 17-22 L5P DURAMAX BILLET EXHAUST MANIFOLD KIT W/ GASKETS AND ARP HARDWARE
WEHRLI CUSTOM FABRICATION
$1,526.78WCFab’s 2017-2025 Duramax Billet Exhaust Manifolds with EGR Riser Flange replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow characteristics, improving turbo...$1,526.78 -
WEHRLI WCF100363 01-16 CHEVROLET DURAMAX EXHAUST MANIFOLD KIT W/ GASKETS & HARDWARE
WEHRLI CUSTOM FABRICATION
$1,357.03WCFab’s 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow characteristics, improving turbo spool up, lowering EGTs...$1,357.03 -
WEHRLI WCF100189 04.5-2010 DURAMAX LLY/LBZ/LMM CRANKCASE VENT (PCV) FITTING KIT - BILLET BLACK ANODIZED
WEHRLI CUSTOM FABRICATION
$44.62Replace the fragile plastic OEM fittings on the top of your 2004.5-2010 LLY/LBZ/LMM Duramax engine which are prone to damage with these high quality, black anodized, CNC machined billet aluminum fittings from WCFab. No tuning required. - Kit includes two...$44.62 -
WEHRLI WCF100443 2001+ GM DURAMAX LB7/LLY/LBZ/LMM/LML/L5P BILLET OIL FILL CAP - BLACK ANODIZED
WEHRLI CUSTOM FABRICATION
$49.47Clean up the engine bay of your 2001-2025 Chevy Silverado or GMC Sierra 2500 / 3500 truck equipped with the 6.6L Duramax with this Billet Aluminum Black Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement for the...$49.47 -
WEHRLI WCF100442 2001+ GM DURAMAX LB7/LLY/LBZ/LMM/LML/L5P BILLET OIL FILL CAP - CLEAR ANODIZED
WEHRLI CUSTOM FABRICATION
$49.47Clean up the engine bay of your 2001-2025 Chevy Silverado or GMC Sierra 2500 / 3500 6.6L truck equipped with the 6.6L Duramax with this Billet Aluminum Clear Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement...$49.47 -
WEHRLI WCF100796 06-10 LBZ/LMM DURAMAX MAP SENSOR SEAL & BRACKET
WEHRLI CUSTOM FABRICATION
$16.49Map Sensor Seal and Bracket used on LB7/LBZ/LMM's when installing WCFab Y-bridge or turbo kits. If your Map sensor is connected to your intake manifold via a hose and IS NOT directly bolted to the intake manifold, then you will need this seal and bracket...$16.49 -
AFE POWER 46-70342 PRO SERIES EXTRA DEEP ENGINE OIL PAN FOR 11-16 GM 6.6L DURAMAX
AFE POWER
$527.84The AFE Power 46-70342 Pro Series Extra Deep Engine Oil Pan is the ultimate upgrade for your 2011-2016 GM 6.6L Duramax diesel engine. Designed to support high-performance needs, this oil pan combines innovation with durability, featuring robust cast...$527.84 -
AFE POWER 46-70330 STREET SERIES EXTRA DEEP ENGINE OIL PAN FOR 01-10 GM 6.6L DURAMAX
AFE POWER
$478.17Elevate your truck's performance with the aFe Power 46-70330 Street Series Extra Deep Engine Oil Pan, expertly engineered for 2001-2010 GM Duramax engines. Crafted from heavy-duty cast aluminum, this oil pan not only enhances durability but also delivers...$478.17 -
AFE POWER 46-70340 STREET SERIES EXTRA DEEP RAW ENGINE OIL PAN FOR 11-16 GM 6.6L DURAMAX
AFE POWER
$478.17Enhance the performance and longevity of your GM Duramax engine with the AFE Power 46-70340 Street Series Engine Oil Pan. Specially designed for 2011-2016 GM 6.6L Duramax models, this oil pan is a must-have upgrade for trucks with a minimum 6-inch lift...$478.17 -
AFE POWER 48-34009-PK TWISTED STEEL UP-PIPES & EXHAUST MANIFOLDS FOR 01-04 GM 6.6L DURAMAX LB7 W/FEDERAL EMISSIONS
AFE POWER
$1,271.66Elevate your driving experience with the AFE POWER 48-34009-PK Twisted Steel Up-Pipes & Exhaust Manifolds, specifically engineered for 2001-2004 GM 6.6L Duramax LB7 models. These high-performance up-pipes enhance engine efficiency and output, allowing...$1,271.66 -
AFE POWER 46-40024 BLADERUNNER PORTED DUCTILE IRON EXHAUST MANIFOLD FOR 01-16 GM DURAMAX 6.6L
AFE POWER
$671.37The AFE Power 46-40024 BladeRunner Ported Ductile Iron Exhaust Manifold is the ultimate performance enhancement for GM diesel trucks from 2001 to 2016, specifically designed for the V8-6.6L (TD) engine found in popular models like the GMC Sierra and...$671.37 -
AFE POWER 46-80003 BLADERUNNER UNIVERSAL ENGINE/TRANSMISSION OIL COOLER KIT 10" X 2" X 4-3/4"
AFE POWER
$274.52The AFE POWER 46-80003 BladeRunner Universal Engine/Transmission Oil Cooler Kit is designed to significantly improve cooling performance for both your vehicle’s engine and transmission. This versatile oil cooler measures 10" x 2" x 4-3/4" and is perfect...$274.52 -
AFE POWER 46-70332 PRO SERIES ENGINE OIL PAN FOR 01-10 DURAMAX 6.6L
AFE POWER
$527.84Revitalize your Duramax engine with the aFe Power 46-70332 Pro Series Engine Oil Pan, a premium upgrade engineered for 2001-2010 V8-6.6L TD models. Designed to deliver unmatched protection and performance, this oil pan is crafted from high-quality cast...$527.84 -
AFE POWER 46-80002 BLADERUNNER UNIVERSAL ENGINE/TRANSMISSION OIL COOLER KIT 10" X 2" X 3-1/2"
AFE POWER
$212.78Transform your vehicle's cooling system with the aFe Power 46-80002 BladeRunner Universal Engine/Transmission Oil Cooler Kit. Designed for high-performance applications, this robust cooler is built to enhance engine and transmission efficiency while...$212.78 -
AFE POWER 46-80004 BLADERUNNER UNIVERSAL ENGINE/TRANSMISSION OIL COOLER KIT 10" X 2" X 8"
AFE POWER
$320.83Enhance your vehicle's performance with the AFE POWER 46-80004 BladeRunner Universal Engine/Transmission Oil Cooler Kit. This advanced cooling solution is engineered to optimize thermal management for your engine and transmission, ensuring they stay cool...$320.83 -
MISHIMOTO MMODP-1415B MAGNETIC OIL DRAIN PLUG M14 X 1.5, BLACK 01-16 DURAMAX 12-16 POWERSTROKE
MISHIMOTO
$22.95Enhance 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...$22.95 -
CARRILLO DMHD6418H 6.6L DURAMAX PRO-H CONNECTING ROD SET (WITH H-11 BOLTS)
CARRILLO
$2,832.90The CARRILLO DMHD6418H 6.6L Duramax Pro-H Connecting Rod Set with H-11 Bolts is engineered for those who demand both performance and durability in their 2001-2010 GM 6.6L Duramax engine builds. With an illustrious history dating back to 1963, Carrillo...$2,832.90 -
CARRILLO DMHD6418S 6.6L DURAMAX PRO-H CONNECTING ROD SET (WITH CARR BOLTS)
CARRILLO
$3,162.60The Carrillo DMHD6418S 6.6L Duramax Pro-H Connecting Rod Set is an essential upgrade for any serious builder of the 2001-2010 GM 6.6L Duramax engine. Renowned since 1963 for its engineering excellence, Carrillo has solidified its reputation as the...$3,162.60 -
CARRILLO DM6418H 6.6L DURAMAX LML PRO-H CONNECTING ROD SET (WITH H-11 BOLTS)
CARRILLO
$2,832.90The Carrillo DM6418H 6.6L Duramax LML Pro-H Connecting Rod Set with H-11 Bolts is the pinnacle of precision engineering for your 2011-2012 GM 6.6L Duramax engine. Boasting a legacy dating back to 1963, Carrillo stands as the premier custom connecting rod...$2,832.90 -
CARRILLO DM6418S 6.6L DURAMAX LML PRO-H CONNECTING ROD SET (WITH CARR BOLTS)
CARRILLO
$3,162.60The Carrillo 6.6L Duramax LML Pro-H Connecting Rod Set with CARR Multiphase Bolts is the pinnacle of precision engineering for your 2011-2012 GM 6.6L Duramax engine build. With a legacy dating back to 1963, Carrillo stands as the foremost custom...$3,162.60 -
WAGLER WCPC6669 PINNED OIL PUMP 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
WAGLER COMPETITION PRODUCTS
$485.00Enhance the performance and durability of your 2001-2010 GM 6.6L Duramax engine with the WAGLER WCPC6669 Pinned Oil Pump. This top-of-the-line oil pump is designed to be a game-changer for your vehicle and promises improved functionality like never...$485.00 -
WAGLER WCPC6664 PUSHROD SET 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
WAGLER COMPETITION PRODUCTS
$350.00Enhance the performance and durability of your 2001-2016 GM 6.6L Duramax engine with the Wagler WCPC6664 Pushrod Set. Crafted from high-quality 3/8" x .135 wall 4130 Chromoly, these pushrods are designed to withstand the rigors of increased engine RPM...$350.00 -
WAGLER WCPC6658.1 STREET GIRDLE 2001-2010 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM
WAGLER COMPETITION PRODUCTS
$850.00The WAGLER WCPC6658.1 STREET GIRDLE is a powerful and essential upgrade for GM 6.6L Duramax engines from 2001 to 2010 LB7/LLY/LBZ/LMM models. This innovative one-piece girdle, part of the WCP Duramax Street series, is machined to a precise 1/2 inch...$850.00 -
WAGLER WCPC6643 DUAL VALVE SPRING KIT WITH STEEL RETAINERS 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
WAGLER COMPETITION PRODUCTS
$600.00Enhance the performance of your GM 6.6L Duramax engine with the WCP Duramax Dual Valve Spring Kit with steel retainers. Specifically designed for the 2001-2016 Duramax LB7/LLY/LBZ/LMM/LML models, this dual valve spring kit is engineered to deliver...$600.00 -
WAGLER WCPC6641 BILLET MAIN CAPS 2001-2016 GM 6.6L DURAMAX
WAGLER COMPETITION PRODUCTS
$750.00WAGLER WCPC6641 BILLET MAIN CAPS are the ultimate solution for enhancing the performance and durability of your 2001-2016 GM 6.6L Duramax engine. Expertly crafted by Wagler®, these top-grade main caps are meticulously manufactured to meet stringent...$750.00 -
WAGLER WCPC6622.1 STREET INTAKE MANIFOLD 2001-2004 GM 6.6L DURAMAX LB7
WAGLER COMPETITION PRODUCTS
$1,250.00The WAGLER WCPC6622.1 Street Intake Manifold is a cutting-edge upgrade designed specifically for the 2001-2004 GM 6.6L Duramax LB7 engines. This aftermarket intake manifold is expertly crafted to replace the factory y-bridge entirely, offering superior...$1,250.00 -
WAGLER WCPC6618 BILLET ROCKER ARM BRIDGE SET 2001-2016 GM 6.6L DURAMAX
WAGLER COMPETITION PRODUCTS
$450.00Elevate the performance of your 2001-2016 GM 6.6L Duramax with the formidable Wagler WCPC6618 Billet Rocker Arm Bridge Set. Crafted to perfection, these sturdy rocker arm bridges are engineered from 4340ACQ certified billet steel, ensuring exceptional...$450.00 -
WAGLER WCPC661025.2 MECHANICAL BELT TENSIONER 2011-2016 GM 6.6L DURAMAX LML
WAGLER COMPETITION PRODUCTS
$375.00Designed for the discerning Duramax enthusiast, the Wagler WCPC661025.2 Mechanical Belt Tensioner offers superior performance and reliability for 2011-2016 GM 6.6L Duramax LML engines. Crafted by Wagler Competition Products, this mechanical belt...$375.00 -
WAGLER WCPC661025.1 MECHANICAL BELT TENSIONER 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
WAGLER COMPETITION PRODUCTS
$375.00The Wagler WCPC661025.1 Mechanical Belt Tensioner for 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM engines is a powerhouse of a product designed to revolutionize your truck's serpentine belt system. This specialized tensioner replaces the factory spring belt...$375.00 -
WAGLER WCPCRC6.6ST STREET FIGHTER CONNECTING RODS (SET OF 8) 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
WAGLER COMPETITION PRODUCTS
$1,950.00The Wagler WCPCRC6.6ST Street Fighter Connecting Rods are a premium choice for enhancing the performance of your 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML engine. Designed specifically for hot street trucks producing up to 1,000 HP, these connecting...$1,950.00 -
WAGLER WCPCRC6.6 CONNECTING ROD SET 2001-2016 GM 6.6L DURAMAX
WAGLER COMPETITION PRODUCTS
$3,200.00Enhance the performance and durability of your 2001-2016 GM 6.6L Duramax engine with the top-of-the-line Wagler WCPCRC6.6 Connecting Rod Set. Crafted with precision and excellence in mind, these connecting rods are a testament to Wagler Competition...$3,200.00 -
MAHLE CB1990P50MM CONNECTING ROD BEARING (.50MM) FOR 01-16 GM DURAMAX
MAHLE
$19.78The MAHLE CB-1990P-.50MM is a high-performance, 0.50mm undersized connecting rod bearing designed for the 2001–2016 GM 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). This bearing is part of the P-Series, known for its durability and...$19.78