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LB7 Duramax Parts

Parts for the LB7 Duramax (2001 to 2004).

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    Smeding Diesel S467 T4 90 Degree Cover Turbocharger

    Smeding
    $1,150.00 - $1,780.00
    $1,150.00
    $1,150.00 - $1,780.00
    $1,150.00

    A hand built Smeding Diesel S467 T4 turbo with Smeding's 90 degree 3rd gen style race cover in place of the standard V band cover. Call us to match...

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    $1,150.00 - $1,780.00
    $1,150.00
    $1,150.00 - $1,780.00
    $1,150.00
  • 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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    XDP Mass Air Flow (MAF) Sensor 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ XD1024

    XDP
    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $83.95

    XDP Model XD1024The XDP Mass Air Flow (MAF) Sensor XD1024 is an OE-style, direct-fit replacement the factory MAF sensor on your Chevy or GMC 6.6L D...

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    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $83.95
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    S&S Single Stage Relief Valve, External Return, 2200 Bar | LB7 and 5.9 Cummins Style

    S&S
    $286.00 - $286.00
    $286.00
    $286.00 - $286.00
    $286.00

    An S&S single stage rail pressure relief valve with external return, set at 2200 bar. This is the valve style used on the LB7 Duramax and 5.9 C...

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    $286.00 - $286.00
    $286.00
    $286.00 - $286.00
    $286.00
  • responsive-image responsive-image Save 9% Save %

    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set

    Mishimoto
    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95

    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set Fits 2001-2021 Chevrolet/GMC 6.6L Duramax (see fitment char...

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    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95
    Save 9% Save %
  • responsive-image responsive-image Save 3% Save %

    Industrial Injection Screw In Injector Cups with Tool | 2001 to 2004.5 LB7 Duramax

    Industrial Injection
    $899.95
    $899.95 - $899.95
    $899.95
    $872.95
    $872.95 - $872.95
    $872.95

    Industrial Injection Model: PDM-07021KThe factory injector cups are known for leaking, pitting and seizing themselves to the injectors in your LB7....

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    $899.95
    $899.95 - $899.95
    $899.95
    $872.95
    $872.95 - $872.95
    $872.95
    Save 3% Save %
  • AirDog 4G Lift Pump, 100 GPH for 2001 to 2010 Chevy and GMC Duramax 6.6 AirDog 4G Lift Pump, 100 GPH for 2001 to 2010 Chevy and GMC Duramax 6.6 Save 3% Save %

    AirDog 4G Lift Pump, 100 GPH | 2001 to 2010 Chevy and GMC Duramax 6.6 | FP-100-4G

    AirDog
    $761.00
    $761.00 - $761.00
    $761.00
    $738.00
    $738.00 - $738.00
    $738.00

    The AirDog 4G FP-100-4G is a 100 GPH lift pump with a water separator, fuel filter and air separation for the 2001 to 2010 Chevy and GMC Duramax 6....

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    $761.00
    $761.00 - $761.00
    $761.00
    $738.00
    $738.00 - $738.00
    $738.00
    Save 3% Save %
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    Schaeffer's 0700 SynShield Durability Advantage 15W-40

    Schaeffer's
    $170.64 - $316.08
    $170.64
    $170.64 - $316.08
    $170.64

    Schaeffer's 0700 SynShield Durability Advantage 15W-40. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, T...

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    $170.64 - $316.08
    $170.64
    $170.64 - $316.08
    $170.64
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    Kryptonite Alignment Cam Pins, 8 Piece | GM Trucks and SUVs

    Kryptonite
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99

    Part# KR86325 Fits; 2001–2025 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD (2WD & 4WD), 2001–2013 Chevy & GMC 2500 2WD/4WD SU...

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    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99
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    Kryptonite Tie Rod Rebuild Kit 10KRYNEW78 | 2001 to 2010 GM HD

    Kryptonite
    $218.49 - $218.49
    $218.49
    $218.49 - $218.49
    $218.49

    Kryptonite Part # - 10KRYNEW78 Fits: 2001–2010 GM Trucks with Kryptonite Tie Rods and a stock centerlink Important Fitment Info: This kit is desig...

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    $218.49 - $218.49
    $218.49
    $218.49 - $218.49
    $218.49
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    Smeding Diesel S464 T4 90 Degree Cover Turbocharger

    Smeding
    $975.00 - $1,360.00
    $975.00
    $975.00 - $1,360.00
    $975.00

    A hand built Smeding Diesel S464 T4 turbo with Smeding's 90 degree 3rd gen style race cover in place of the standard V band cover. Call us to match...

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    $975.00 - $1,360.00
    $975.00
    $975.00 - $1,360.00
    $975.00

  • Smeding Diesel S400 4.62 Downpipe with Clamp

    Smeding
    $199.00 - $199.00
    $199.00
    $199.00 - $199.00
    $199.00

    Smeding Diesel S400 4.62 Downpipe with Clamp. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN.Question...

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    $199.00 - $199.00
    $199.00
    $199.00 - $199.00
    $199.00
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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
  • responsive-image responsive-image Save 20% Save %

    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
  • 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 | 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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    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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    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
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    XDP Billet Tow and Race Flex Plate | 2001 to 2016 Duramax with Allison 1000

    XDP
    $271.95 - $271.95
    $271.95
    $271.95 - $271.95
    $271.95

    XDP Billet Tow and Race Flex Plate for the 2001 to 2016 Duramax with Allison 1000. Sold and shipped by Powerhouse Diesel, a diesel repair and perfo...

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    $271.95 - $271.95
    $271.95
    $271.95 - $271.95
    $271.95
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    Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

    Wehrli
    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41

    Wehrli Model WCF100442Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized Clean up the engine bay of your 2001-202...

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    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41
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    Wehrli 01-05 Chevrolet 6.6L LB7/LLY Duramax Upper Coolant Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $144.53
    $144.53 - $144.53
    $144.53

    Wehrli Model WCF100860 Aluminum Upper Coolant Pipe for LB7/LLY Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of ...

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    $0.00 - $0.00
    $0.00
    $144.53
    $144.53 - $144.53
    $144.53
    Select Options

The LB7 is the original 6.6L Duramax, built by GM and Isuzu for 2001 to 2004 Chevy Silverado HD and GMC Sierra HD trucks. It has a cast iron block, aluminum heads, a Bosch CP3 pump and no DPF or EGR, which makes it a favorite for high mileage reliability and tuning.

Shop LB7 Duramax Parts by Category

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

LB7 Duramax FAQ

What is the LB7 known for?

A strong bottom end and no emissions equipment, which makes it popular for tuning and long term reliability.

What are common LB7 problems?

Injector failure is the most common issue, often from fuel contamination. Keeping fuel filtration in good shape helps prevent it.