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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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  • Photo - Primary Photo - Primary

    AMP Research 14-21 GM Replacement OBD II Module Plug for Plug N Play Power Step

    AMP Research
    $80.99 - $80.99
    $80.99
    $80.99 - $80.99
    $80.99

    AMP Research Model 19-03970-91Are your AMP Research PowerStep running boards intermittently operating due to a loose or damaged OBD-II module? Chec...

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    $80.99 - $80.99
    $80.99
    $80.99 - $80.99
    $80.99
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    Wehrli Lower Valance Panel Kit, Tow Hook Cut Outs, Raw | 2015 to 2019 GM 2500 3500

    Wehrli
    $0.00 - $0.00
    $0.00
    $227.95
    $227.95 - $227.95
    $227.95

    Wehrli Model WCF100425Wehrli 15-19 Chevrolet 2500/3500 Front Bumper Valance Filler Panel Kit w/Tow Hook Cut Outs- Raw Finish Removing the OEM plast...

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    $0.00 - $0.00
    $0.00
    $227.95
    $227.95 - $227.95
    $227.95
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    Wehrli 17-24 Duramax L5P High Flow Intake Horn

    Wehrli
    $0.00 - $0.00
    $0.00
    $260.93
    $260.93 - $260.93
    $260.93

    Wehrli Model WCF100775 The WCFab L5P 4 in. High Flow Cast Aluminum Turbo Intake Horn for 2017-2025 Chevrolet Silverado or GMC 2500 / 3500 HD trucks...

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    $0.00 - $0.00
    $0.00
    $260.93
    $260.93 - $260.93
    $260.93
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    H&S Billet Fuel Filter Housing | 2017+ L5P Duramax

    H&S Motorsports
    $0.00 - $0.00
    $0.00
    $129.00
    $129.00 - $129.00
    $129.00

    Applications Fits all 2017+ 6.6L GM L5P Duramax Features After witnessing a few failures of the factory plastic fuel filter housing on the...

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    $0.00 - $0.00
    $0.00
    $129.00
    $129.00 - $129.00
    $129.00
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    Wehrli 11-16 Chevrolet 6.6L Duramax LML 4in Intake Kit Stage 2

    Wehrli
    $0.00 - $0.00
    $0.00
    $839.05
    $839.05 - $839.05
    $839.05

    A fabricated aluminum 4 inch intake pipe and air box with a dry filter for the 2011 to 2016 LML Duramax, replacing the restrictive plastic factory ...

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    $0.00 - $0.00
    $0.00
    $839.05
    $839.05 - $839.05
    $839.05
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    Wehrli 06-07 LBZ Duramax High Flow 3in Y-Bridge Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $994.25
    $994.25 - $994.25
    $994.25

    Wehrli Model WCF100163 This LBZ 3" Y-Bridge Kit is an upgraded high flow intake kit for the 2006-2007 6.6L Duramax diesel engine which replaces the...

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    $0.00 - $0.00
    $0.00
    $994.25
    $994.25 - $994.25
    $994.25
    Select Options
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    Wehrli Billet Exhaust Manifold and Up Pipe Kit | 2017 to 2024 Duramax

    Wehrli
    $0.00 - $0.00
    $0.00
    $2,158.25
    $2,158.25 - $2,158.25
    $2,158.25

    Wehrli Model WCF100226 Wehrli 17-24 Chevrolet Duramax Billet Exhaust Manifold & Stainless Up Pipe Kit w/ Gaskets & Hardware Fully TIG Wel...

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    $0.00 - $0.00
    $0.00
    $2,158.25
    $2,158.25 - $2,158.25
    $2,158.25
  • FASS TSC12100G fuel system FASS TSC12100G fuel system Save 5% Save %

    FASS Titanium Signature Series Fuel System, 100 GPH | 2015 to 2016 Chevy and GMC Duramax LML | TSC12100G

    FASS Fuel Systems
    $762.11
    $762.11 - $762.11
    $762.11
    $724.00
    $724.00 - $724.00
    $724.00

    The FASS Titanium Signature Series TSC12100G is a 100 GPH fuel system with a water separator, 2 micron filter and air and vapor separation for the ...

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    $762.11
    $762.11 - $762.11
    $762.11
    $724.00
    $724.00 - $724.00
    $724.00
    Save 5% Save %
  • FASS TSC11100G fuel system FASS TSC11100G fuel system Save 5% Save %

    FASS Titanium Signature Series Fuel System, 100 GPH | 2011 to 2014 Chevy and GMC Duramax LML | TSC11100G

    FASS Fuel Systems
    $751.58
    $751.58 - $751.58
    $751.58
    $714.00
    $714.00 - $714.00
    $714.00

    The FASS Titanium Signature Series TSC11100G is a 100 GPH fuel system with a water separator, 2 micron filter and air and vapor separation for the ...

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    $751.58
    $751.58 - $751.58
    $751.58
    $714.00
    $714.00 - $714.00
    $714.00
    Save 5% Save %
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    Schaeffer's 0137ULSW Diesel Treat 2000 Winter Fuel Additive and Anti Gel

    Schaeffer's
    $16.36 - $392.64
    $16.36
    $16.36 - $392.64
    $16.36

    Schaeffer's 0137ULSW Diesel Treat 2000 Winter is a cold weather diesel fuel additive and anti gel. It protects ultra low sulfur diesel from gelling...

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    $16.36 - $392.64
    $16.36
    $16.36 - $392.64
    $16.36
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    Schaeffer's 9012 SynShield OTR Plus Full Synthetic 10W-30 Diesel Engine Oil

    Schaeffer's
    $297.10 - $360.54
    $297.10
    $297.10 - $360.54
    $297.10

    Schaeffer's 9012 SynShield OTR Plus 10W-30 is a full synthetic heavy duty diesel engine oil built for fuel economy without giving up wear protectio...

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    $297.10 - $360.54
    $297.10
    $297.10 - $360.54
    $297.10
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    Smeding Diesel S464 T4 Turbocharger

    Smeding
    $975.00 - $1,510.00
    $975.00
    $975.00 - $1,510.00
    $975.00

    A hand built Smeding Diesel S464 turbo with a T4 flange for big single and compound setups. Call us to match the housings and fitment to your truck...

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    $975.00 - $1,510.00
    $975.00
    $975.00 - $1,510.00
    $975.00
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    XDP Duramax Radiator Coolant Drain Pipe XD328

    XDP
    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95

    XDP Model XD328Eliminate the hassle of servicing the cooling system in your 2006-2019 GM 6.6L Duramax with the XDP Duramax Radiator Coolant Drain P...

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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95
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    XDP Xtra Cool Direct Fit Transmission Cooler XD309

    XDP
    $235.95 - $235.95
    $235.95
    $235.95 - $235.95
    $235.95

    XDP Model XD309The XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001...

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    $235.95 - $235.95
    $235.95
    $235.95 - $235.95
    $235.95
  • Photo - Close Up Photo - Primary

    Cognito Alpha Ball Joint, Press In Style UCA | 2011 to 2025 Silverado 2500

    Cognito
    $94.95 - $94.95
    $94.95
    $94.95 - $94.95
    $94.95

    ***Currently on back order-Alternative part available here Cognito Silverado/Sierra 2500HD/3500HD Alpha PRO Ball Joint — Powerhouse Diesel With a h...

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    $94.95 - $94.95
    $94.95
    $94.95 - $94.95
    $94.95
  • Pusher Hollow Point Air Filter. Pusher Hollow Point Air Filter.

    Pusher Hollow Point Air Filter

    Pusher Intakes
    $78.50 - $78.50
    $78.50
    $78.50 - $78.50
    $78.50

    Pusher Hollow Point Air Filter. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: XXCAL Q...

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    $78.50 - $78.50
    $78.50
    $78.50 - $78.50
    $78.50
    Select Options
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    Kryptonite Fox Steering Stabilizer Kit For 2015 to 2025 Chevy/GMC 2500HD/3500HD

    Kryptonite
    $322.99 - $322.99
    $322.99
    $322.99 - $322.99
    $322.99

    Kryptonite Model KRSS15FOX Fits:  2015–2025 Chevy Silverado / GMC Sierra 2500HD  2015–2025 Chevy Silverado / GMC Sierra 3500HD  Important Fitment D...

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    $322.99 - $322.99
    $322.99
    $322.99 - $322.99
    $322.99
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    Pro Form Fab 2011-2025 Chevy/GMC 2500/3500 Rear Integrated Bump Stop Lift Blocks

    Pro Form Fab
    $0.00 - $0.00
    $0.00
    $139.95
    $139.95 - $249.95
    $139.95

    2011-2025 Chevy/GMC 2500/3500 Product Description: We are proud to bring you our Heavy Duty fabricated rear lift blocks. These CNC cut, jig wel...

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    $0.00 - $0.00
    $0.00
    $139.95
    $139.95 - $249.95
    $139.95
    Select Options
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    Pro Form Fab 11-18 Chevy 2500/3500 HD Traction Bars

    Pro Form Fab
    $0.00 - $900.00
    $0.00
    $550.00
    $550.00 - $900.00
    $550.00

    2011-2018 Chevy/GMC 2500/3500 HD Product Description: We are proud to bring you our Heavy Duty Tubular Ladder/Traction Bars. These work ...

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    $0.00 - $900.00
    $0.00
    $550.00
    $550.00 - $900.00
    $550.00
    Select Options
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    Wehrli 15-19 GM 2500/3500 HD Bumper Spacer Kit - 3/4in

    Wehrli
    $0.00 - $0.00
    $0.00
    $257.05
    $257.05 - $257.05
    $257.05

    Wehrli Model WCF100462Wehrli 15-19 GM 2500/3500 HD Bumper Spacer Kit - 3/4in WCFab 3/4" Front Bumper Spacer Kit for 2015-2019 GM 2500/3500 HD Truck...

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    $0.00 - $0.00
    $0.00
    $257.05
    $257.05 - $257.05
    $257.05
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    Wehrli Lower Valance Panel, Tow Hook Cut Outs, Black | 2015 to 2019 GM 2500 3500

    Wehrli
    $0.00 - $0.00
    $0.00
    $280.33
    $280.33 - $280.33
    $280.33

    Wehrli Model WCF100427-FTBWehrli 15-19 Chevrolet 2500/3500 Lower Valance Panel w/Tow Hook Cut Outs - Texture Black Removing the OEM plastic lower b...

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    $0.00 - $0.00
    $0.00
    $280.33
    $280.33 - $280.33
    $280.33
  • S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM. S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM.

    S&S Injector Return Line Assembly, Left Side | LLY, LBZ, LMM Duramax

    S&S
    $56.00 - $56.00
    $56.00
    $56.00 - $56.00
    $56.00

    The low pressure injector return line assembly for the left side (LH) of the LLY, LBZ and LMM Duramax, from S&S. These lines carry return fuel ...

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    $56.00 - $56.00
    $56.00
    $56.00 - $56.00
    $56.00
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    Wehrli 01-04 Chevrolet 6.6L LB7 Duramax Fuel Pressure Relief Valve Delete Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $72.75
    $72.75 - $72.75
    $72.75

    Wehrli Model WCF100023Wehrli 01-04 Chevrolet 6.6L LB7 Duramax Fuel Pressure Relief Valve Delete Kit This kit allows you to remove the Fuel Pressure...

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    $0.00 - $0.00
    $0.00
    $72.75
    $72.75 - $72.75
    $72.75
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    Wehrli 17-19 Duramax L5P / 20-24 L5P Duramax Long Bed Fuel Filter Housing Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $247.35
    $247.35 - $247.35
    $247.35

    Wehrli Model WCF100361Wehrli 17-19 Duramax L5P / 20-24 L5P Duramax Long Bed Fuel Filter Housing Kit Fits L5P Duramax 2017-2019 Short Bed & Lo...

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    $0.00 - $0.00
    $0.00
    $247.35
    $247.35 - $247.35
    $247.35

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.