Engine Components

Want to get rid of that big ugly resonator under the hood of your LML? This billet aluminum plate, anodized in black with "Fleece" engraved across ...

The Fleece Performance Intake Air Heater Delete is a simple way to remove the air intake heater on your 2001-2004 GM 6.6L Duramax. Complete with a ...

Replacement transmission input speed sensor pigtail for the Allison Transmission 1000/2000 Series on MY 2015-2019 GM trucks. Includes two heat-seal...

A common failure point on the L5P Duramax, our replacement connector with 4.5" pigtail for the fuel injectors will get you back on the road quickly...

Get rid of oil leaks from the harness connector with our replacement internal wiring harness seal for the Allison LCT and GM 4T65-E. This 20-way pi...

Replacement connector with 6" pigtail for use on the 2011-2016 6.6L Duramax MAF sensor. Produced in-house, our manufacturing process includes fully...

Our Fuel Rail Pressure harness for the 2011-2016 6.6L Duramax is a direct replacement for GM Part Numbers 12647115 and 12638158. Produced in-house,...

Our Fuel Pressure Regulator (FPR) harness for the 2001-2010 6.6L Duramax is a direct replacement for GM Part Number: 97378671 (MY 2006-2010) and 97...

Regulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications.Warranty

dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes O-ring and cam-lock and is a direct replacement for your ...

2001-2023 Duramax Billet Coolant Block Off Plate (Replaces GM P/N: 97941204) OE covers are prone to leakage as the gaskets dry out and factory cast...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engin...

ALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups t...

ALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups t...

Fel-Pro(R) gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Desig...

Fel-Pro(R) gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Desig...

Fel-Pro(R) gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Desig...

Replacement parts available. See 54039BUS for the upper shell. See 54039BLS for lower shell. Billet fuel rails available under 54023. Compatible th...

The FAST LSX 102mm Intake Manifold for GM 4.8, 5.3 and 6.0 truck engines provides bolt-on performance gains without any loss in bottom-end drivabil...

Constructed from the same advanced polymer material as the original FAST LSX 92mm Intake Manifold, but now in the popular black color, the LSXR off...

FAST has developed the industry’s first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspir...

Edelbrock part #7501 RPM Air-Gap #7501 intake manifold is designed for 1955-86 262-400 c.i.d. Chevrolet V8 applications. The award-winning RPM Air-...

Edelbrock part #7201 Intake Gaskets for 1958-1986 Small-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a goo...

The Edelbrock #4449 Signature Series Valve Covers are designed for Chevrolet 262-400 '59-86 applications. Engineered for function and styled for gr...

Edelbrock part #2701 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock's Patented Dual-plane, low...

Edelbrock part #2040 Manifold Installation kit will simplify the process of adding more power and efficiency to your street rod or muscle car. It c...

The Edelbrock #2021 Single-Quad Manifold and carb kit is designed for 1957-86 Small-Block Chevy applications. With a Manifold and Carb Kit, it's ea...

OE-Style Hydraulic Roller Lifters (No Link Bar) are a performance replacement for stock hydraulic Roller lifters. They decrease friction and increa...

Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. COMP Cams Steel Retainers are the pe...

The COMP Cams GM LS7/Gen V LT Trunnion Upgrade Kit is designed to upgrade the stock needle bearings with full complement Roller trunnions and will ...

Our trunnion upgrade kit converts a stock LS series rocker arm into a captured trunnion for increased stability and stiffness. Compatible with stoc...

Clevite Chevrolet V8 6.6L Turbo Diesel 2001-09 Thrust Washer Set

Clevite camshaft bearings are OE replacement parts that are finished to provide the recommended clearance right from the box. Designed to meet or ...

Clevite camshaft bearings are OE replacement parts that are finished to provide the recommended clearance right from the box. Designed to meet or ...

Clevite GM Gen V 6.2L LT1 Main Bearing Set - Extra Oil Clearance

Clevite GM Gen V 6.2L LT1 Main Bearing Set

Clevite Chevrolet V8 6.6L Turbo Diesel 2001-05 Main Bearing Set

Clevite Chevrolet V8 6.6L Turbo Diesel 2001-05 Main Bearing Set

Clevite Tri Armor Chevrolet V8/ 293-325-346-364/ 1997-00 Main Bearing Set

Clevite H-Series performance bearings have a medium level of eccentricity, high crush, and a hardened steel back and thin overlay. These bearings ...

Clevite Tri Armor Chevrolet V8/ 293-325-346-364/ 1997-00 Main Bearing Set

Clevite Chevrolet V8 293-325-346-364 1997-07 Main Bearing Set