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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MAHLE 224-3985WR-0.25MM Piston With Rings (.25MM) 2011-2016 GM 6.6L Duramax LML/LGH
MAHLE
$1,051.52AutoCare brands Id FLHQ AutoCare brand MAHLE Environmentally hazardous material No ACES applications available Yes Quantity per application 8 Each$1,051.52 -
FLEECE FPE-61-10001-P-CL FREEDOM SERIES CYLINDER HEAD W/CUPLESS INJECTOR BORE FOR 01-04 LB7 (PASSENGER SIDE)
FLEECE PERFORMANCE
$1,099.00Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom...$1,099.00 -
FLEECE FPE-61-10001-D-CL FREEDOM SERIES CYLINDER HEAD W/CUPLESS INJECTOR BORE FOR 01-04 LB7 (DRIVER SIDE)
FLEECE PERFORMANCE
$1,099.00Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom...$1,099.00 -
PPE 116111200 MANIFOLDS AND UP-PIPES Y-PIPE (CA) 2002-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$1,121.39PPEs Manifolds and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire...$1,121.39 -
PPE 116111800 MANIFOLDS AND UP-PIPES Y-PIPE 2007.5-2010 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$1,121.39PPEs Manifolds and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are internally-sleeved, made from aircraft-grade 304 stainless steel and designed with an increased inner diameter for higher flow. The entire...$1,121.39 -
PPE 116112000 MANIFOLDS AND UP-PIPES Y-PIPE 2011-2016 GM DURAMAX 6.6L LML
PACIFIC PERFORMANCE ENGINEERING
$1,121.39PPE's advanced Manifolds and Up-Pipes are the ultimate upgrade for your 2011-2016 GM Duramax 6.6L LML engine. Engineered to enhance power and flow characteristics, this exhaust system is a game-changer for enthusiasts seeking optimal performance.Crafted...$1,121.39 -
PPE 116112500 MANIFOLDS AND UP-PIPES-RAW 2017-2021 GM DURAMAX 6.6L L5P
PACIFIC PERFORMANCE ENGINEERING
$1,349.99The PPE 116112500 Manifolds and Up-Pipes - Raw 2017-2021 GM Duramax 6.6L L5P is a top-of-the-line upgrade for your vehicle, designed to enhance performance and durability. These high-flow manifolds are crafted from cast, high-sil moly, ensuring strength...$1,349.99 -
PPE 110100101 CAST IRON CYLINDER HEAD (ONE) 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$1,349.9950 States Emissions Legal (E.O. D-701-38) The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually...$1,349.99 -
PPE 110100103 CAST IRON CYLINDER HEAD (ONE) 2004.5-2010 GM 6.6L DURAMAX LLY/LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$1,349.99The PPE 110100103 Cast Iron Cylinder Head is a game-changer for owners of 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM engines. Designed to address the shortcomings of OEM cast-aluminum cylinder heads, this product offers unmatched durability and performance...$1,349.99 -
PPE 116111035 EXHAUST MANIFOLD W/UP-PIPES (2001 CA, 01-04 FED) SILVER 2001-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$1,070.9850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,070.98 -
PPE 116111220 MANIFOLDS AND UP-PIPES-BLACK (CA) 2002-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111235 MANIFOLDS AND UP-PIPES-Y PIPE-SILVER (CA) 2002-2004 GM DURAMAX 6.6L LB7
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111420 MANIFOLDS AND UP-PIPES Y PIPE-BLACK 2004.5-2005 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111435 MANIFOLDS AND UP-PIPES Y PIPE- SILVER 2004.5-2005 GM DURAMAX 6.6L LLY
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111620 MANIFOLDS AND UP-PIPES-BLACK 2006-2007 GM DURAMAX 6.6L LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111635 MANIFOLDS AND UP-PIPES-SILVER 2006-2007 GM DURAMAX 6.6L LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111820 MANIFOLDS AND UP-PIPES-BLACK 2007.5-2010 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116111835 MANIFOLDS AND UP-PIPES-SILVER 2007.5-2010 DURAMAX 6.6L LMM
PACIFIC PERFORMANCE ENGINEERING
$1,292.3850 States Emissions Legal (E.O. D-701-34) PPE High-Flow Manifolds are made from cast, high-sil moly. The PPE Up-Pipe bellows are internally sleeved, made from aircraft-grade 304 stainless steel, and designed with increased inner diameter for higher flow...$1,292.38 -
PPE 116112035 MANIFOLDS AND UP-PIPES Y PIPE-SILVER 2011-2016 GM 6.6L DURAMAX LML
PACIFIC PERFORMANCE ENGINEERING
$1,292.38Experience enhanced performance with the PPE 116112035 Manifolds and Up-Pipes Y Pipe-Silver designed for 2011-2016 GM 6.6L Duramax LML. PPE High-Flow Manifolds, crafted from cast high-sil moly, and Up-Pipes featuring internally sleeved bellows made from...$1,292.38 -
PPE 116112520 MANIFOLDS AND UP-PIPES-BLACK 2017+ GM DURAMAX 6.6L L5P
PACIFIC PERFORMANCE ENGINEERING
$1,520.99Enhance the performance of your GM Duramax 6.6L L5P engine with the PPE 116112520 Manifolds and Up-Pipes in sleek black finish. These high-quality components are engineered to elevate your vehicle's power and efficiency while ensuring compliance with 50...$1,520.99 -
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 -
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 -
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 -
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-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-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-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-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 -
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 -
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 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 -
FLEECE FPE-61-10002-D REMANUFACTURED CYLINDER HEAD-DRIVERS SIDE 2004.5-2005 DURAMAX 6.6L LLY
FLEECE PERFORMANCE
$1,099.00The FLEECE FPE-61-10002-D REMANUFACTURED CYLINDER HEAD-DRIVERS SIDE is a top-tier product redefining the quality standards for the 6.6L Duramax engine. Exclusively part of our Freedom Series, each cylinder head is meticulously crafted in our cutting-edge...$1,099.00 -
FLEECE FPE-61-10002-P REMANUFACTURED CYLINDER HEAD (PASSENGER SIDE) 2004.5-2005 DURAMAX 6.6L LLY
FLEECE PERFORMANCE
$1,099.00Experience superior performance with our FLEECE FPE-61-10002-P Remanufactured Cylinder Head (Passenger Side) designed for the 2004.5-2005 Duramax 6.6L LLY engine. As part of our esteemed Freedom Series, each cylinder head is meticulously crafted in our...$1,099.00 -
FLEECE FPE-61-10003-D FREEDOM SERIES CYLINDER HEAD-DRIVERS SIDE 2006-2010 DURAMAX 6.6L LBZ/LMM
FLEECE PERFORMANCE
$1,099.00The Freedom Series Cylinder Head-Driver's Side for the 2006-2010 Duramax 6.6L LBZ/LMM trucks is the ultimate upgrade for your vehicle. Crafted with precision in our cutting-edge Freedom Racing Engine facility, these cylinder heads are designed to deliver...$1,099.00 -
FLEECE FPE-61-10003-P FREEDOM SERIES CYLINDER HEAD-PASSENGER SIDE 2006-2010 DURAMAX 6.6L LBZ/LMM
FLEECE PERFORMANCE
$1,099.00The FLEECE FPE-61-10003-P Freedom Series Cylinder Head-Passenger Side is the ultimate upgrade for your 2006-2010 Duramax 6.6L LBZ/LMM engine. Crafted with precision and expertise in our cutting-edge Freedom Racing Engine facility, these cylinder heads...$1,099.00 -
FLEECE FPE-61-10004-D FREEDOM SERIES CYLINDER HEAD-DRIVERS SIDE FOR 11-16 GM DURAMAX 6.6L LML
FLEECE PERFORMANCE
$1,099.00The FLEECE FPE-61-10004-D FREEDOM SERIES CYLINDER HEAD-DRIVERS SIDE 2011-2016 GM DURAMAX 6.6L LML is a high-quality, precision-engineered product designed to elevate the performance of your 6.6L Duramax engine. Crafted in the advanced facilities of...$1,099.00 -
FLEECE FPE-61-10004-P REMANUFACTURED CYLINDER HEAD (PASSENGER SIDE) FOR 11-16 GM DURAMAX
FLEECE PERFORMANCE
$1,099.00The Fleece FPE-61-10004-P Remanufactured Cylinder Head (Passenger Side) is the ultimate upgrade for your 2011-2016 GM Duramax 6.6L LML engine. Designed as part of our Freedom Series, each cylinder head is meticulously crafted in our cutting-edge Freedom...$1,099.00