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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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    XDP Fuel Tank Sump, One Hole with Fuel Return XD243

    XDP
    $185.95 - $185.95
    $185.95
    $185.95 - $185.95
    $185.95

    XDP Fuel Tank Sump, One Hole with Fuel Return XD243. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. ...

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    $185.95 - $185.95
    $185.95
    $185.95 - $185.95
    $185.95
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    BorgWarner S400 SX-E 360 Thrust / 83mm & 87mm Turbine Service Kit

    BorgWarner
    $127.64
    $127.64 - $127.64
    $127.64
    $102.11
    $102.11 - $102.11
    $102.11

    BorgWarner S400 SX-E 360 Thrust / 83mm & 87mm Turbine Service Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop ...

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    $127.64
    $127.64 - $127.64
    $127.64
    $102.11
    $102.11 - $102.11
    $102.11
    Save 20% Save %
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    Smeding Diesel S363 SXE Turbocharger

    Smeding
    $730.00 - $1,265.00
    $730.00
    $730.00 - $1,265.00
    $730.00

    A hand built Smeding Diesel S363 SXE turbo. Call us to match the housings and fitment to your truck and power goals.Questions on fitment? Call our ...

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    $730.00 - $1,265.00
    $730.00
    $730.00 - $1,265.00
    $730.00
  • Photo - Primary Photo - Primary

    Cognito 11-19 Chevy/GMC Silverado/Sierra 2500/3500 HD Bushing Kit for Upper Control Arms

    Cognito
    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95

    Fits: 2011 to 2019 Chevrolet Silverado 2500 HD; 2011 to 2019 Chevrolet Silverado 3500 HD; 2011 to 2019 GMC Sierra 2500 HD; 2011 to 2019 GMC Sierra ...

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    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95
  • User 1 User 1

    HP Tuners E41 ECM Upgrade Kit | GM

    HP Tuners
    $199.99 - $199.99
    $199.99
    $199.99 - $199.99
    $199.99

    HP Tuners Model ECM-00-L5P-KHP Tuners GM E41 ECM Upgrade Kit for supported GM E41 ECM (L5P) Conveniently upgrade your E41 ECM, found in the 2017-20...

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    $199.99 - $199.99
    $199.99
    $199.99 - $199.99
    $199.99
  • FASS NDTSC12165G fuel system FASS NDTSC12165G fuel system Save 5% Save %

    FASS No Drop Titanium Signature Series Fuel System with Sump, 165 GPH | 2015 to 2016 Chevy and GMC Duramax LML | NDTSC12165G

    FASS Fuel Systems
    $898.95
    $898.95 - $898.95
    $898.95
    $854.00
    $854.00 - $854.00
    $854.00

    The FASS No Drop Titanium Signature Series NDTSC12165G is a 165 GPH fuel system with a water separator, 2 micron filter and air and vapor separatio...

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    $898.95
    $898.95 - $898.95
    $898.95
    $854.00
    $854.00 - $854.00
    $854.00
    Save 5% Save %
  • User 1 User 1

    DDP DCR Pump Conversion Kit, Brand New | 2017 to 2023 L5P Duramax

    DDP
    $0.00 - $0.00
    $0.00
    $2,280.00
    $2,280.00 - $2,280.00
    $2,280.00

    The factory HP4 pump on the L5P Duramax can fail and send metal through the whole fuel system, turning a pump job into a full injector and rail rep...

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    $0.00 - $0.00
    $0.00
    $2,280.00
    $2,280.00 - $2,280.00
    $2,280.00
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    HP Tuners MPVI4

    HP Tuners
    $399.99 - $399.99
    $399.99
    $399.99 - $399.99
    $399.99

    HP Tuners' newest vehicle interface, the MPVI4, for custom calibration, diagnostics and data logging.Questions on fitment? Call our shop at 865 640...

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    $399.99 - $399.99
    $399.99
    $399.99 - $399.99
    $399.99
  • User 1 Photo - Primary Save 9% Save %

    Mishimoto Black Steel Spiked Lug Nuts M14 x 1.5, 32 Piece

    Mishimoto
    $115.00
    $115.00 - $115.00
    $115.00
    $104.95
    $104.95 - $104.95
    $104.95

    Mishimoto Model MMLG-SP1415-32BKThe details matter when you're building your dream car. Every bolt is meticulously chosen for not only function, bu...

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    $115.00
    $115.00 - $115.00
    $115.00
    $104.95
    $104.95 - $104.95
    $104.95
    Save 9% Save %
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    Wehrli Billet Aluminum Competition Kill Switch

    Wehrli
    $0.00 - $0.00
    $0.00
    $195.00
    $195.00 - $195.00
    $195.00

    Wehrli Big Hitch Products Model BHP4010 Universal Kill Switch for Competition Pulling Vehicles to cut ground wire circuit of Ignition, Fuel pump...

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    $0.00 - $0.00
    $0.00
    $195.00
    $195.00 - $195.00
    $195.00
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    XDP New Power Steering Pump with Reservoir | 2011 to 2022 GM 2500HD 3500HD

    XDP
    $318.95 - $318.95
    $318.95
    $318.95 - $318.95
    $318.95

    Restore proper steering performance in your GM 6.6L Duramax LML/L5P with the XDP Power Steering Pump New with Reservoir XD740. Made from all-new co...

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    $318.95 - $318.95
    $318.95
    $318.95 - $318.95
    $318.95
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    XDP New Power Steering Pump with Reservoir | 2001 to 2010 GM 2500 3500

    XDP
    $207.95 - $207.95
    $207.95
    $207.95 - $207.95
    $207.95

    Replace that leaking or noisy power steering pump in your GM 6.6L Duramax LB7/LLY/LBZ/LMM with the XDP Power Steering Pump New with Reservoir XD733...

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    $207.95 - $207.95
    $207.95
    $207.95 - $207.95
    $207.95
  • XDP Harmonic Balancer Bolt XD628. XDP Harmonic Balancer Bolt XD628.

    XDP Harmonic Balancer Bolt XD628

    XDP
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    XDP Harmonic Balancer Bolt XD628. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: XD628...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    Wehrli 15-19 GM 2500/3500 HD Bumper Spacer Kit - 3/8in

    Wehrli
    $0.00 - $0.00
    $0.00
    $184.30
    $184.30 - $184.30
    $184.30

    Wehrli Model WCF100453Wehrli 15-19 GM 2500/3500 HD Bumper Spacer Kit - 3/8in WCFab 3/8" Front Bumper Spacer Kit for 2015-2019 GM 2500/3500 HD Truck...

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    $0.00 - $0.00
    $0.00
    $184.30
    $184.30 - $184.30
    $184.30
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    Wehrli 20-2024 GM 2500/3500 HD Lower Splash Shield Kit

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

    Wehrli Model WCF100459 The WCFab Splash Shield Kit for 2020-2025 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replace...

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    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03
    Select Options
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    Wehrli 20-24 GM 2500/3500 HD Bumper Spacer Kit - 3/8in

    Wehrli
    $0.00 - $0.00
    $0.00
    $142.59
    $142.59 - $142.59
    $142.59

    Wehrli Model WCF100446 Wehrli 2020+ GM 2500/3500 HD Bumper Spacer Kit - 3/8in WCFab 3/8" Front Bumper Spacer Kit for 2020-2025 GM 2500/3500 HD Truc...

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    $0.00 - $0.00
    $0.00
    $142.59
    $142.59 - $142.59
    $142.59
  • S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only. S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only.

    S&S L5P CP3 Conversion Kit with 10mm Pump | Competition Use Only

    S&S
    $3,204.00 - $3,204.00
    $3,204.00
    $3,204.00 - $3,204.00
    $3,204.00

    An S&S CP3 conversion with a 10mm pump for built L5P Duramax trucks. This is a race part. S&S states plainly that it will not work on a sto...

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    $3,204.00 - $3,204.00
    $3,204.00
    $3,204.00 - $3,204.00
    $3,204.00
  • S&S Diesel Motorsport LML CP4 TO RAIL LH (1267074). S&S Diesel Motorsport LML CP4 TO RAIL LH (1267074).

    S&S CP4 to Rail High Pressure Line, Left Side | LML Duramax

    S&S
    $78.00 - $78.00
    $78.00
    $78.00 - $78.00
    $78.00

    The high pressure line from the CP4 to the left side (LH) fuel rail on the LML Duramax, from S&S. Fits: 2011 to 2016 LML Duramax, left side. ...

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    $78.00 - $78.00
    $78.00
    $78.00 - $78.00
    $78.00
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    S&S High Pressure Electronic Regulator (DRV) | LML Duramax

    S&S
    $196.00 - $196.00
    $196.00
    $196.00 - $196.00
    $196.00

    The electronic rail pressure regulator (DRV) for the LML Duramax, from S&S. On the LML the ECM uses this valve on the fuel rail to control rail...

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    $196.00 - $196.00
    $196.00
    $196.00 - $196.00
    $196.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S DBV4 2 Stage Relief Valve, Internal Return, 2000 Bar | Stock LBZ, LMM and 6.7 Cummins

    S&S
    $247.00 - $247.00
    $247.00
    $247.00 - $247.00
    $247.00

    A stock replacement rail pressure relief valve from S&S for the LBZ and LMM Duramax and the 6.7 Cummins, set at 2000 bar. It is a DBV4 2 stage ...

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    $247.00 - $247.00
    $247.00
    $247.00 - $247.00
    $247.00
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    Banks Monster-Ram Turbo Inlet Elbow, Red | 2017 to 2024 L5P Duramax

    Banks Power
    $332.22
    $332.22 - $332.22
    $332.22
    $299.00
    $299.00 - $299.00
    $299.00

    The Banks Monster-Ram Turbo Inlet for the 2017-2024 Duramax L5P is the only intake elbow that outperforms stock without the destructive effects of ...

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    $332.22
    $332.22 - $332.22
    $332.22
    $299.00
    $299.00 - $299.00
    $299.00
    Save 10% Save %
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    Rough Country M14 x 1.5 Lug Nuts, Set of 32, Black

    Rough Country
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Rough Country M14 x 1.5 Lug Nuts, Set of 32, Black. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. ...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
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    Under Seat Storage | Crew Cab | Chevy/GMC 1500/2500HD/3500HD 2WD/4WD

    Rough Country
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    Clean up the contents of your cab with Rough Countrys Custom-Fit Under Seat Storage Compartment. These handy underseat truck storage compartments o...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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    DDP Common Rail High Pressure Diesel Injection System Cleaner

    DDP
    $0.00 - $0.00
    $0.00
    $47.50
    $47.50 - $47.50
    $47.50

    A heavy duty, one time use cleaner for the whole common rail fuel system. It removes contamination and resin buildup. Part number: DDPCRCLEAN Ques...

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    $0.00 - $0.00
    $0.00
    $47.50
    $47.50 - $47.50
    $47.50

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.