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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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    ARP Duramax 6.6L LB7 Hex Valve Cover Bolt Kit

    ARP
    $139.00 - $139.00
    $139.00
    $139.00 - $139.00
    $139.00

    ARP Model 100-7532ARP Duramax 6.6L LB7 Hex Valve Cover Bolt Kit

    $139.00 - $139.00
    $139.00
    $139.00 - $139.00
    $139.00
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    Exergy 01-04 Chevrolet Duramax 6.6L LB7 10mm Stroker CP3 Pump (LBZ Based w/FCA)

    Exergy
    $3,155.00 - $3,155.00
    $3,155.00
    $3,155.00 - $3,155.00
    $3,155.00

    Exergy Model E04 10106Exergy 01-04 Chevrolet Duramax 6.6L LB7 10mm Stroker CP3 Pump (LBZ Based w/FCA) Do you want the capability of more power with...

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    $3,155.00 - $3,155.00
    $3,155.00
    $3,155.00 - $3,155.00
    $3,155.00
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    Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

    Mishimoto
    $806.00
    $806.00 - $806.00
    $806.00
    $732.00
    $732.00 - $732.00
    $732.00

    There's no greater enemy for a transmission than heat. Whether your 2001-2003 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet ...

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    $806.00
    $806.00 - $806.00
    $806.00
    $732.00
    $732.00 - $732.00
    $732.00
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    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK

    Mishimoto
    $1,695.00
    $1,695.00 - $1,695.00
    $1,695.00
    $1,541.00
    $1,541.00 - $1,541.00
    $1,541.00

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK Mishimoto has expanded their Duramax performance parts line to include a perf...

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    $1,695.00
    $1,695.00 - $1,695.00
    $1,695.00
    $1,541.00
    $1,541.00 - $1,541.00
    $1,541.00
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    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER

    Mishimoto
    $1,695.00
    $1,695.00 - $1,695.00
    $1,695.00
    $1,541.00
    $1,541.00 - $1,541.00
    $1,541.00

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER Mishimoto has expanded their Duramax performance parts line to include a per...

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    $1,695.00
    $1,695.00 - $1,695.00
    $1,695.00
    $1,541.00
    $1,541.00 - $1,541.00
    $1,541.00
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    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L

    Mishimoto
    $1,533.00
    $1,533.00 - $1,533.00
    $1,533.00
    $1,394.00
    $1,394.00 - $1,394.00
    $1,394.00

    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L Mishimoto has released a performance aluminum radiator for the 2001-2005 Chevrolet/GMC 6...

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    $1,533.00
    $1,533.00 - $1,533.00
    $1,533.00
    $1,394.00
    $1,394.00 - $1,394.00
    $1,394.00
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    Mishimoto Aluminum Intercooler Pipe & Boot Kit 2002*-2004 LB7 - NOT 2001 MODEL

    Mishimoto
    $823.00
    $823.00 - $823.00
    $823.00
    $749.00
    $749.00 - $749.00
    $749.00

    The Mishimoto 6.6L Duramax intercooler pipe and boot kit is an ideal upgrade in reliability and performance.The Mishimoto kit features polished al...

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    $823.00
    $823.00 - $823.00
    $823.00
    $749.00
    $749.00 - $749.00
    $749.00
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    Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $953.00
    $953.00 - $953.00
    $953.00

    Fleece Performance Model FPE-PF-GM-0104Fleece Performance Model FPE-PF-GM-0104Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo ...

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    $0.00 - $0.00
    $0.00
    $953.00
    $953.00 - $953.00
    $953.00
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 63mm Billet LB7 Cheetah Turbocharger

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $2,933.00
    $2,933.00 - $2,933.00
    $2,933.00

    Fleece Performance Model FPE-LB7-63Wake up your 2001-2004 LB7 with the drop in replacement Fleece Performance LB7 Cheetah Turbocharger. Featuring a...

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    $0.00 - $0.00
    $0.00
    $2,933.00
    $2,933.00 - $2,933.00
    $2,933.00
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 High Flow LB7 Intake Horn

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $147.00
    $147.00 - $147.00
    $147.00

    Fleece Performance Model FPE-INTAKEHORNIncrease your LB7?s potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an inc...

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    $0.00 - $0.00
    $0.00
    $147.00
    $147.00 - $147.00
    $147.00
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    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,759.00
    $1,759.00 - $1,759.00
    $1,759.00

    Fleece Performance Model FPE-61-10001-D-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

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    $0.00 - $0.00
    $0.00
    $1,759.00
    $1,759.00 - $1,759.00
    $1,759.00
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    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,759.00
    $1,759.00 - $1,759.00
    $1,759.00

    Fleece Performance Model FPE-61-10001-P-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

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    $0.00 - $0.00
    $0.00
    $1,759.00
    $1,759.00 - $1,759.00
    $1,759.00
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    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Inlet Metering Valve (FCA/MPROP)

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

    Exergy Model E05 10105Exergy 01-04 Chevrolet Duramax 6.6L LB7 Inlet Metering Valve (FCA/MPROP) Do you have an engine lope at idle or surging while ...

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    $275.00 - $275.00
    $275.00
    $275.00 - $275.00
    $275.00
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    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman Sportsman Injector - Set of 8

    Exergy
    $3,709.00 - $3,709.00
    $3,709.00
    $3,709.00 - $3,709.00
    $3,709.00

    Exergy Model E01 10102Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman Sportsman Injector - Set of 8 8 LB7 Reman Sportsman Bosch Injectors Copper Was...

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    $3,709.00 - $3,709.00
    $3,709.00
    $3,709.00 - $3,709.00
    $3,709.00
    Select Options
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    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Sportsman CP3 Pump (LBZ Based w/FCA)

    Exergy
    $1,864.00 - $1,864.00
    $1,864.00
    $1,864.00 - $1,864.00
    $1,864.00

    Exergy Model E04 10105Exergy 01-04 Chevrolet Duramax 6.6L LB7 Sportsman CP3 Pump (LBZ Based w/FCA) Exergy Sportsman pumps have the following improv...

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    $1,864.00 - $1,864.00
    $1,864.00
    $1,864.00 - $1,864.00
    $1,864.00
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    BD Diesel Injection Pump Stock Exchange CP3 - Chevy 2001-2004 Duramax 6.6L LB7

    BD Diesel
    $1,258.00 - $1,258.00
    $1,258.00
    $1,297.00
    $1,297.00 - $1,297.00
    $1,297.00

    BD Diesel Stock Remanufactured CP3 Injection Pump- 2001-2004 LB7 Duramax 6.6L This Part Fits: Year Make Model Submodel 2001-2004 Chevrolet S...

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    $1,258.00 - $1,258.00
    $1,258.00
    $1,297.00
    $1,297.00 - $1,297.00
    $1,297.00
    Select Options
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    Wehrli 17-19 Chevrolet L5P Duramax Twin Turbo Style Coolant Tank Kit

    Wehrli
    $605.00 - $605.00
    $605.00
    $605.00 - $605.00
    $605.00

    Wehrli Model WCF100710 L5P Duramax Fabricated Aluminum Coolant Tank Kit for Twin (Compound) Turbo Applications mounts on passenger side fender. Doe...

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    $605.00 - $605.00
    $605.00
    $605.00 - $605.00
    $605.00
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    BD Diesel 17-19 Chevy/GM 2500/3500 L5P Duramax 6.6L Reman. Turbo

    BD Diesel
    $3,508.00 - $3,508.00
    $3,508.00
    $3,617.00
    $3,617.00 - $3,617.00
    $3,617.00

    BD Diesel Performance is unique among its peers in that it designs, manufactures and distributes a wide range of products specifically engineered f...

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    $3,508.00 - $3,508.00
    $3,508.00
    $3,617.00
    $3,617.00 - $3,617.00
    $3,617.00
    Select Options
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    Fleece Performance 17-19 GM 2500/3500 Duramax LP5 Fan Extension Harness

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $68.00
    $68.00 - $68.00
    $68.00

    Fleece Performance Model FPE-HAR-DMAX-FAN-L5POur replacement fan extension harness for the 2017-2019 L5P Duramax allows you to repair a broken or d...

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    $0.00 - $0.00
    $0.00
    $68.00
    $68.00 - $68.00
    $68.00
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    BD Diesel Reman Stock Replacement Turbo L5P 2020-2023 Duramax 6.6L

    BD Diesel
    $3,205.00 - $3,205.00
    $3,205.00
    $3,671.00
    $3,671.00 - $3,671.00
    $3,671.00

    This remanufactured turbo is fully cleaned and inspected before having all the seals, piston rings, journal bearings, and mounting hardware re...

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    $3,205.00 - $3,205.00
    $3,205.00
    $3,671.00
    $3,671.00 - $3,671.00
    $3,671.00
    Select Options
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    Wehrli 17-24 L5P Duramax Billet Exhaust Manifold Kit w/ Gaskets and ARP Hardware

    Wehrli
    $0.00 - $0.00
    $0.00
    $2,304.00
    $2,304.00 - $2,304.00
    $2,304.00

    Wehrli Model WCF100373Wehrli 17-24 L5P Duramax Billet Exhaust Manifold Kit w/ Gaskets and ARP Hardware Fully TIG Welded, CNC machined billet stee...

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    $0.00 - $0.00
    $0.00
    $2,304.00
    $2,304.00 - $2,304.00
    $2,304.00
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    Wehrli 20-24 Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $548.00
    $548.00 - $548.00
    $548.00

    Wehrli Model WCF100381 The WCFab 3.5" High Flow Passenger Side Intercooler Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC ...

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    $0.00 - $0.00
    $0.00
    $548.00
    $548.00 - $548.00
    $548.00
    Select Options
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    Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $491.00
    $491.00 - $491.00
    $491.00

    Wehrli Model WCF100129Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe 3.5" Steel Down Pipe- High Temp Black Ceramic Coat Finish- Heat...

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    $0.00 - $0.00
    $0.00
    $491.00
    $491.00 - $491.00
    $491.00
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    Wehrli 20-24 GM Duramax - 19-23 Ram HD Rear Differential Cover

    Wehrli
    $0.00 - $0.00
    $0.00
    $554.00
    $554.00 - $554.00
    $554.00

    Wehrli Model WCF100114 Fabricated Aluminum Differential Cover for Rear Axle on 2020-2025 GM Duramax HD Trucks and 2019-2024 Dodge Ram 2500/3500. Co...

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    $0.00 - $0.00
    $0.00
    $554.00
    $554.00 - $554.00
    $554.00
    Select Options

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.

Powerhouse Diesel