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LB7 Duramax Parts

Parts for the LB7 Duramax (2001 to 2004).

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  • WeatherTech Hood Protector Black for 2003 to 2004 Silverado Sierra

    WeatherTech
    Original price $126.95 - Original price $126.95
    Original price
    $126.95
    $126.95 - $126.95
    Current price $126.95

    The Hood Protector is a custom-fit bug and debris shield that helps preserve and maintain paint finishes. Features a sleek and low profile made fro...

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    Original price $126.95 - Original price $126.95
    Original price
    $126.95
    $126.95 - $126.95
    Current price $126.95
  • WeatherTech No Drill MudFlaps Front and Rear without Fender Flares Dually Only for 2001 to 2006 Chevy Silverado GMC Sierra 2500HD 3500

    WeatherTech
    Original price $239.90 - Original price $239.90
    Original price
    $239.90
    $239.90 - $239.90
    Current price $239.90

    Weathertech Model 110006-120027 WeatherTech No Drill F&R Mudflap Set 01-06 Duramax WITHOUT Factory Fender Flares or Lip Molding - DUALLY ONLY D...

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    Original price $239.90 - Original price $239.90
    Original price
    $239.90
    $239.90 - $239.90
    Current price $239.90
  • WeatherTech No Drill MudFlaps Front and Rear with Factory Fender Flares for 2001 to 2006 Chevy Silverado GMC Sierra 2500HD 3500

    WeatherTech
    Original price $199.90 - Original price $199.90
    Original price
    $199.90
    $199.90 - $199.90
    Current price $199.90

    Weathertech Model 110005-120005 WeatherTech F&R Mudflap Set 01-06 Duramax WITH Factory Fender Flares or Lip Molding Ditch the damage when you i...

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    Original price $199.90 - Original price $199.90
    Original price
    $199.90
    $199.90 - $199.90
    Current price $199.90
  • Lund Universal Crossroads 80in. Running Board - Chrome

    LUND
    Original price $649.99 - Original price $649.99
    Original price
    $649.99
    $649.99 - $649.99
    Current price $649.99

    These OE-styled running boards feature a crescent-shaped design with chrome end caps, creating a contemporary look and feel. Each running board has...

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    Original price $649.99 - Original price $649.99
    Original price
    $649.99
    $649.99 - $649.99
    Current price $649.99
  • Lund Universal Crossroads 70in. Running Board - Chrome

    LUND
    Original price $599.99 - Original price $599.99
    Original price
    $599.99
    $599.99 - $599.99
    Current price $599.99

    These OE-styled running boards feature a crescent-shaped design with chrome end caps, creating a contemporary look and feel. Each running board has...

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    Original price $599.99 - Original price $599.99
    Original price
    $599.99
    $599.99 - $599.99
    Current price $599.99
  • Lund 00-14 GMC Yukon (80in w/o Fender Flares) TrailRunner Extruded Multi-Fit Running Boards - Brite

    LUND
    Original price $549.99 - Original price $549.99
    Original price
    $549.99
    $549.99 - $549.99
    Current price $549.99

    LUND® TrailRunner(TM) running boards offer maximum durability, in the most demanding conditions. A wide variety of finishes include - heavy-duty ex...

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    Original price $549.99 - Original price $549.99
    Original price
    $549.99
    $549.99 - $549.99
    Current price $549.99
  • AMP Research Override Switch w/ STA1 Controller

    AMP Research
    Original price $169.99 - Original price $169.99
    Original price
    $169.99
    $169.99 - $169.99
    Current price $169.99

    Now you can manually control your AMP Research POWERSTEP with a temporary over-ride switch. Whether deploying them to wash, or retracting them for ...

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    Original price $169.99 - Original price $169.99
    Original price
    $169.99
    $169.99 - $169.99
    Current price $169.99
  • AMP Research 1999-2013 Chevrolet Silverado All Beds BedStep2 - Black

    AMP Research
    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99

    Side steps for hard-working trucks. The AMP Research Bedstep2 mounts just behind the cab, forward of the rear wheel, providing a faster, easier and...

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    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99
  • AMP Research 1999-2006 Chevrolet Silverado 1500/2500/3500 BedStep - Black

    AMP Research
    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99

    Go ahead and step on it. Bedstep is a real time saver. Not to mention knee and back saver. Strong and rugged, this non-slip, retractable bumper ste...

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    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99
  • BD Diesel Throttle Sensitivity Booster - Chevy 2001-2005 6.6L Duramax LB7

    BD Diesel
    Original price $281.25 - Original price $281.25
    Original price $281.25
    $289.95
    $289.95 - $289.95
    Current price $289.95

    By reducing pedal lag, the Throttle Sensitivity Booster forces your performance curve to occur sooner, achieving quicker engine response and a...

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    Original price $281.25 - Original price $281.25
    Original price $281.25
    $289.95
    $289.95 - $289.95
    Current price $289.95
  • Yukon Spindle Nut for GM 10.5in 14 Bolt Truck 1.935in I.D 6 Holes

    Yukon Gear & Axle
    Original price $86.89 - Original price $86.89
    Original price
    $86.89
    $86.89 - $86.89
    Current price $86.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

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    Original price $86.89 - Original price $86.89
    Original price
    $86.89
    $86.89 - $86.89
    Current price $86.89
  • Yukon Gear Left Hand Carrier Bearing Adjuster For 9.25in GM IFS

    Yukon Gear & Axle
    Original price $110.89 - Original price $110.89
    Original price
    $110.89
    $110.89 - $110.89
    Current price $110.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

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    Original price $110.89 - Original price $110.89
    Original price
    $110.89
    $110.89 - $110.89
    Current price $110.89
  • Yukon Gear 11.5 GM Spanner Adjuster Nut

    Yukon Gear & Axle
    Original price $51.89 - Original price $51.89
    Original price
    $51.89
    $51.89 - $51.89
    Current price $51.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    Original price $51.89 - Original price $51.89
    Original price
    $51.89
    $51.89 - $51.89
    Current price $51.89
  • Yukon Gear 10.5in GM 14 Bolt Truck Pinion Nut

    Yukon Gear & Axle
    Original price $31.89 - Original price $31.89
    Original price
    $31.89
    $31.89 - $31.89
    Current price $31.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    Original price $31.89 - Original price $31.89
    Original price
    $31.89
    $31.89 - $31.89
    Current price $31.89
  • GM Remanufactured Stock Heads For 01-04 LB7 Duramax With Torque Lock Caps Industrial Injection

    Industrial Injection
    Original price $2,199.95
    Original price $2,199.95 - Original price $2,199.95
    Original price $2,199.95
    Current price $2,133.95
    $2,133.95 - $2,133.95
    Current price $2,133.95

    Industrial Injection Model: PDM-LB7SH-TLThe Industrial Injection LB7 Duramax Stock Remanufactured Heads with Torque Lock Cups are designed to be an...

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    Original price $2,199.95
    Original price $2,199.95 - Original price $2,199.95
    Original price $2,199.95
    Current price $2,133.95
    $2,133.95 - $2,133.95
    Current price $2,133.95
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  • GM HX Series Rod Bearing Set For 01-16 Duramax Industrial Injection

    Industrial Injection
    Original price $570.95
    Original price $570.95 - Original price $570.95
    Original price $570.95
    Current price $553.82
    $553.82 - $553.82
    Current price $553.82

    Industrial Injection Model: PDM-CB-1805HXC2001-2016 Duramax Hx Series Rod Bearings (Std +.001) Coated Set. These H and HX Clevite bearings were de...

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    Original price $570.95
    Original price $570.95 - Original price $570.95
    Original price $570.95
    Current price $553.82
    $553.82 - $553.82
    Current price $553.82
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  • GM Remanufactured Stock Heads For 01-04 LB7 Duramax Industrial Injection

    Industrial Injection
    Original price $1,749.95
    Original price $1,749.95 - Original price $1,749.95
    Original price $1,749.95
    Current price $1,697.45
    $1,697.45 - $1,697.45
    Current price $1,697.45

    Industrial Injection Model: PDM-LB7SHThe Industrial Injection LB7 Duramax Stock Remanufactured Heads are designed to be a factory replacement. Comp...

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    Original price $1,749.95
    Original price $1,749.95 - Original price $1,749.95
    Original price $1,749.95
    Current price $1,697.45
    $1,697.45 - $1,697.45
    Current price $1,697.45
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  • GM Race Cast Pistons For 01-16 Duramax Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    Original price $3,963.95
    Original price $3,963.95 - Original price $3,963.95
    Original price $3,963.95
    Current price $3,845.03
    $3,845.03 - $3,845.03
    Current price $3,845.03

    Industrial Injection Model: PDM-298STDDuramax Standard Size Race Fly Cut cast Pistons Set Coated Tops and Skirts Delipped Set. PDM's Ceramic Piston...

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    Original price $3,963.95
    Original price $3,963.95 - Original price $3,963.95
    Original price $3,963.95
    Current price $3,845.03
    $3,845.03 - $3,845.03
    Current price $3,845.03
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  • GM Race Camshaft For 01-16 Duramax Alternate Firing Billet Stage 2 Industrial Injection

    Industrial Injection
    Original price $999.95
    Original price $999.95 - Original price $999.95
    Original price $999.95
    Current price $969.95
    $969.95 - $969.95
    Current price $969.95

    Industrial Injection Model: PDM-DMXHPIndustrial Injection 6.6L Duramax Stage 2 Race Performance Camshaft Industrial Injection always recommends che...

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    Original price $999.95
    Original price $999.95 - Original price $999.95
    Original price $999.95
    Current price $969.95
    $969.95 - $969.95
    Current price $969.95
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  • GM Race Camshaft For 01-16 Duramax Stage 1 With Key Industrial Injection

    Industrial Injection
    Original price $792.95
    Original price $792.95 - Original price $792.95
    Original price $792.95
    Current price $769.16
    $769.16 - $769.16
    Current price $769.16

    Industrial Injection Model: PDM-DMXRVIndustrial Injection Duramax Stage 1 Performance Camshaft w/ Key Features: 2001-2016 Duramax Helps Lower EG...

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    Original price $792.95
    Original price $792.95 - Original price $792.95
    Original price $792.95
    Current price $769.16
    $769.16 - $769.16
    Current price $769.16
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  • GM Race Pistons For 01-16 Duramax Industrial Injection

    Industrial Injection
    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14

    Industrial Injection Model: PDM-362STDPDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing s...

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    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14
  • GM Race Pistons For 01-16 Duramax .040 Over Industrial Injection

    Industrial Injection
    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14

    Industrial Injection Model: PDM-362.040PDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing ...

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    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14
  • GM Race Pistons For 01-16 Duramax .020 Over Industrial Injection

    Industrial Injection
    Original price $4,262.95
    Original price $4,262.95 - Original price $4,262.95
    Original price $4,262.95
    Current price $4,135.06
    $4,135.06 - $4,135.06
    Current price $4,135.06

    Industrial Injection Model: PDM-362.020PDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing ...

    View full details
    Original price $4,262.95
    Original price $4,262.95 - Original price $4,262.95
    Original price $4,262.95
    Current price $4,135.06
    $4,135.06 - $4,135.06
    Current price $4,135.06
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  • GM Race Cast Pistons For 01-16 Duramax .040 Oversize Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    Original price $2,626.16 - Original price $2,626.16
    Original price
    $2,626.16
    $2,626.16 - $2,626.16
    Current price $2,626.16

    Industrial Injection Model: PDM-298.040Duramax .040 Over Fly Cut Race cast Pistons Set Coated Tops and Skirts Delipped Set. PDM's Ceramic Piston Sk...

    View full details
    Original price $2,626.16 - Original price $2,626.16
    Original price
    $2,626.16
    $2,626.16 - $2,626.16
    Current price $2,626.16

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.