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Duramax Parts

Duramax parts for every 6.6L Duramax in Chevy Silverado HD and GMC Sierra HD trucks, from the 2001 LB7 to the current L5P. Pick your engine below to see parts that fit your truck.

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    Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

    Wehrli
    $0.00 - $0.00
    $0.00
    $40.74
    $40.74 - $40.74
    $40.74

    Wehrli Model WCF205-280Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

    $0.00 - $0.00
    $0.00
    $40.74
    $40.74 - $40.74
    $40.74
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    Wehrli LLY / LBZ / LMM Duramax Turbo Compressor Inlet Billet Steel Flange

    Wehrli
    $0.00 - $0.00
    $0.00
    $38.80
    $38.80 - $38.80
    $38.80

    Wehrli Model WCF205-81Wehrli LLY / LBZ / LMM Duramax Turbo Compressor Inlet Billet Steel Flange

    $0.00 - $0.00
    $0.00
    $38.80
    $38.80 - $38.80
    $38.80
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    Wehrli 20-24 Chevy & GMC Duramax RCLB/CCSB/ECSB 60in. Traction Bar Kit

    Wehrli
    $969.03 - $969.03
    $969.03
    $969.03 - $969.03
    $969.03

    Wehrli Model WCF100826 ***This kit includes 60" long bars for Regular Cab Long Bed, Extended Cab Short Bed and Crew Cab Short Bed Models*** ***This...

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    $969.03 - $969.03
    $969.03
    $969.03 - $969.03
    $969.03
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    Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $241.53
    $241.53 - $241.53
    $241.53

    Wehrli Model WCF100224 2020-2025 L5P Duramax Fabricated Aluminum Auxiliary Coolant Tank Kit, mounts in OEM location. Dress up your engine bay by ...

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    $0.00 - $0.00
    $0.00
    $241.53
    $241.53 - $241.53
    $241.53
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    Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax S&B

    S&B
    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00

    Maximum Performance Our cold air intake for the 2004-2005 Chevy / GMC Duramax LLY 6.6L was engineered to minimize air restriction and flows 44.63 p...

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    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00
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    DDP 11-16 Chevrolet Duramax 6.6L LML Stock Reman Injector (Single)

    DDP
    $0.00 - $0.00
    $0.00
    $337.25
    $337.25 - $337.25
    $337.25

    DDP Model DDPLML-STKDuramax 11-16 LML Injector: Remanufactured stock power level injector. Comes with all the latest revisions. Sold individually w...

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    $0.00 - $0.00
    $0.00
    $337.25
    $337.25 - $337.25
    $337.25
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    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New Stock Replacement Left Hand Fuel Rail

    Exergy
    $275.00 - $275.00
    $275.00
    $275.00 - $275.00
    $275.00

    Exergy 04.5-05 Chevy Duramax LLY New Stock Replacement LH Fuel Rail

    $275.00 - $275.00
    $275.00
    $275.00 - $275.00
    $275.00
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    Exergy LB7 Duramax Rail End to M14x1.5

    Exergy
    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00

    Exergy Model 1-018-134Exergy LB7 Rail End to M14x1.5

    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00
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    Wehrli LB7/LLY/LBZ/LMM/LML Duramax S400 Single Turbo Oil Line Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03

    Wehrli Model WCF100397 Complete Oil Line Kit for 2001-2016 LB7/LLY/LBZ/LMM/LML Duramax with S400 Turbo mounted on 6" tall pedestal. ***Also compati...

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    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03
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    Wehrli Chevrolet LBZ/LMM Duramax 3in Y-Bridge Kit (Bridge Only)

    Wehrli
    $569.00
    $569.00 - $569.00
    $569.00
    $522.83
    $522.83 - $522.83
    $522.83

    Wehrli Model WCF100235Wehrli Chevrolet LBZ/LMM Duramax ***BRIDGE ASSEMBLY ONLY*** The factory LBZ/LMM Y-bridge is a poorly designed slip-in style ...

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    $569.00
    $569.00 - $569.00
    $569.00
    $522.83
    $522.83 - $522.83
    $522.83
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    Wehrli 15.5-16 Chevrolet 6.6L LML Duramax 3in Stainless Down Pipe (3 Bolt Flange)

    Wehrli
    $0.00 - $0.00
    $0.00
    $348.23
    $348.23 - $348.23
    $348.23

    Wehrli Model WCF100705Wehrli 15.5-16 Chevrolet 6.6L LML Duramax 3in Stainless Down Pipe (3 Bolt Flange) Replace the restrictive crushed factory dow...

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    $0.00 - $0.00
    $0.00
    $348.23
    $348.23 - $348.23
    $348.23
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    Wehrli 06-10 Chevrolet 6.6L LBZ/LMM Duramax Passenger Side 3.5in Intercooler Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $411.28
    $411.28 - $411.28
    $411.28

    Wehrli Model WCF100367 The 3.5" High Flow Passenger (Cold) Side Intercooler Pipe Kit for 2006-2010 LBZ/LMM Duramax replaces the failure prone facto...

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    $0.00 - $0.00
    $0.00
    $411.28
    $411.28 - $411.28
    $411.28
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    Wehrli 06-10 Chevrolet 6.6L LBZ/LMM Duramax 3.5in Intake Horn

    Wehrli
    $0.00 - $0.00
    $0.00
    $388.00
    $388.00 - $388.00
    $388.00

    Wehrli Model WCF100412 The WCFab LBZ/LMM 4.8 in. High Flow Cast Aluminum intake horn for LBZ/LMM replaces the restrictive OEM plastic inlet to prov...

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    $0.00 - $0.00
    $0.00
    $388.00
    $388.00 - $388.00
    $388.00
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    Wehrli 01-19 Chevrolet LB7/LLY/LBZ/LMM/LML/L5P Duramax Brake Master Cylinder Cover

    Wehrli
    $0.00 - $0.00
    $0.00
    $145.50
    $145.50 - $145.50
    $145.50

    Wehrli Model WCF100205Clean up the engine bay of your 2001-2019 Chevy Silverado or GMC Sierra 2500/3500 Duramax truck with this custom powder coate...

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    $0.00 - $0.00
    $0.00
    $145.50
    $145.50 - $145.50
    $145.50
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    Wehrli 01-16 Chevrolet Duramax Exhaust Manifold Kit w/ Gaskets & Hardware

    Wehrli
    $0.00 - $0.00
    $0.00
    $1,401.65
    $1,401.65 - $1,401.65
    $1,401.65

    Wehrli Model WCF100363 Wehrli 01-16 Chevrolet Duramax Exhaust Manifold Kit w/ Gaskets & Hardware Fully TIG Welded, CNC machined billet steel ...

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    $0.00 - $0.00
    $0.00
    $1,401.65
    $1,401.65 - $1,401.65
    $1,401.65
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    Wehrli 01-10 Chevrolet 6.6L Duramax Traction Bar Install Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $276.45
    $276.45 - $276.45
    $276.45

    Wehrli Model WCF100840 Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to th...

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    $0.00 - $0.00
    $0.00
    $276.45
    $276.45 - $276.45
    $276.45
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    Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit

    Wehrli
    $524.00
    $524.00 - $524.00
    $524.00
    $474.33
    $474.33 - $474.33
    $474.33

    Wehrli Model WCF100405 The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2001-2005 LB7/LLY Duramax replaces the OEM upper rad...

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    $524.00
    $524.00 - $524.00
    $524.00
    $474.33
    $474.33 - $474.33
    $474.33
    Save 9% Save %
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    Wehrli 01-04 Duramax LB7 Stage 2 High Flow Bundle Intake Bundle Kit

    Wehrli
    $1,855.00
    $1,855.00 - $1,855.00
    $1,855.00
    $1,799.95
    $1,799.95 - $1,799.95
    $1,799.95

    Wehrli Model WCF100435 WCFab 2001-2004 GM LB7 6.6L Duramax Stage 2 High Flow Intake Bundle Kit Stage 2 upgrade for the 2001-2004 LB7 Duramax combin...

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    $1,855.00
    $1,855.00 - $1,855.00
    $1,855.00
    $1,799.95
    $1,799.95 - $1,799.95
    $1,799.95
    Save 3% Save %
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    Wehrli 01-04 Chevrolet 6.6L LB7 Duramax Driver Side 3in Intercooler Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $305.55
    $305.55 - $305.55
    $305.55

    Wehrli Model WCF100349 1 Piece 3" Driver Side Intercooler pipe that was designed to replace the factory pipe and low-quality silicone boots. This I...

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    $0.00 - $0.00
    $0.00
    $305.55
    $305.55 - $305.55
    $305.55
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    GM Stock Remanufactured Heads For 06-10 LBZ LMM 6.6L Duramax Industrial Injection

    Industrial Injection
    $1,749.95
    $1,749.95 - $1,749.95
    $1,749.95
    $1,697.45
    $1,697.45 - $1,697.45
    $1,697.45

    Industrial Injection Model: PDM-LBZ/LMMSHThe Industrial Injection LBZ/LMM Duramax Stock Remanufactured Heads are designed to be a factory replaceme...

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    $1,749.95
    $1,749.95 - $1,749.95
    $1,749.95
    $1,697.45
    $1,697.45 - $1,697.45
    $1,697.45
    Save 3% Save %
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    Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 6.6L Duramax Turbochargers

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-DTFL-0116Make turbo installations easier and ensure good oil supply to your turbocharger with our remote oil feed line...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    Fleece Performance 17-22 GM 2500/3500 Duramax MAP Sensor Spacer & Boost Reference Port

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-L5P-MAP-SPRAll new Fleece Performance MAP sensor spacer with boost reference port for the L5P Duramax. Problem: Becaus...

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    $0.00 - $0.00
    $0.00
    $68.99
    $68.99 - $68.99
    $68.99
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    Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Black

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $39.99
    $39.99 - $39.99
    $39.99

    Fleece Performance Model FPE-DMAX-OC-BLKDress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes o-ring and cam-lo...

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    $0.00 - $0.00
    $0.00
    $39.99
    $39.99 - $39.99
    $39.99
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    Fleece 17-22 GM 2500/3500 Duramax L5O Replacement Fuel Injector Connector

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $59.99
    $59.99 - $59.99
    $59.99

    Fleece Performance Model FPE-HAR-L5P-INJ-PTA common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fuel ...

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    $0.00 - $0.00
    $0.00
    $59.99
    $59.99 - $59.99
    $59.99

Duramax parts and performance upgrades for every 6.6L Duramax, from the 2001 LB7 to the current L5P. We carry injectors, fuel systems, turbos, tuning, Allison transmission parts and suspension from Kryptonite, Pro Form Fab and more.

Shop by Duramax Engine

Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.

Duramax FAQ

Which Duramax do I have?

The engine code is stamped on the block and often on a decal under the hood. LB7 ran 2001 to 2004, LLY 2004.5 to 2005, LBZ 2006 to 2007, LMM 2007.5 to 2010, LML 2011 to 2016, and L5P 2017 on.

Do parts interchange between Duramax generations?

Some suspension and driveline parts do, but fuel system, turbo and tuning parts are specific to each engine generation. Shop by engine and year, or send us your VIN.

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