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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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  • S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F. S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F.

    S&S Rail Cap, M18x1.5 | LBZ, LMM, 6.7 Cummins

    S&S
    $38.00 - $38.00
    $38.00
    $38.00 - $38.00
    $38.00

    An S&S cap for an unused M18x1.5 port on the fuel rail. Use it to close off a rail port you are not running a line to. Thread: M18x1.5. Fits...

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    $38.00 - $38.00
    $38.00
    $38.00 - $38.00
    $38.00
  • S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F. S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F.

    S&S Rail Cap, M14x1.5 | LB7, LLY, 5.9 Cummins, 6.7 Powerstroke

    S&S
    $30.00 - $30.00
    $30.00
    $30.00 - $30.00
    $30.00

    An S&S cap for an unused M14x1.5 port on the fuel rail. Use it to close off a rail port you are not running a line to. Thread: M14x1.5. Fits...

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    $30.00 - $30.00
    $30.00
    $30.00 - $30.00
    $30.00
  • S&S Diesel Motorsport LML Rail - LH Side (w/ Sensor & DRV). S&S Diesel Motorsport LML Rail - LH Side (w/ Sensor & DRV).

    S&S Fuel Rail with Sensor and DRV, Left Side | LML Duramax

    S&S
    $358.00 - $358.00
    $358.00
    $358.00 - $358.00
    $358.00

    An S&S left side (LH) fuel rail for the LML Duramax, with the rail pressure sensor and DRV regulator. Fits: 2011 to 2016 LML Duramax, left si...

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    $358.00 - $358.00
    $358.00
    $358.00 - $358.00
    $358.00
  • S&S Diesel Motorsport LML Rail - RH Side. S&S Diesel Motorsport LML Rail - RH Side.

    S&S Fuel Rail, Right Side | LML Duramax

    S&S
    $358.00 - $358.00
    $358.00
    $358.00 - $358.00
    $358.00

    An S&S right side (RH) fuel rail for the LML Duramax. Fits: 2011 to 2016 LML Duramax, right side. Part number: RAIL-LML-RH Questions on fitm...

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    $358.00 - $358.00
    $358.00
    $358.00 - $358.00
    $358.00
  • S&S Diesel Motorsport LBZ Rail RH Side. S&S Diesel Motorsport LBZ Rail RH Side.

    S&S Fuel Rail, Right Side | LBZ Duramax

    S&S
    $563.00 - $563.00
    $563.00
    $563.00 - $563.00
    $563.00

    An S&S right side (RH) fuel rail for the LBZ Duramax. Fits: 2006 to 2007 LBZ Duramax, right side. Part number: RAIL-LBZ-RH Questions on fitm...

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    $563.00 - $563.00
    $563.00
    $563.00 - $563.00
    $563.00
  • S&S Diesel Motorsport LBZ Rail LH Side. S&S Diesel Motorsport LBZ Rail LH Side.

    S&S Fuel Rail, Left Side | LBZ Duramax

    S&S
    $563.00 - $563.00
    $563.00
    $563.00 - $563.00
    $563.00

    An S&S left side (LH) fuel rail for the LBZ Duramax. Fits: 2006 to 2007 LBZ Duramax, left side. Part number: RAIL-LBZ-LH Questions on fitmen...

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    $563.00 - $563.00
    $563.00
    $563.00 - $563.00
    $563.00
  • S&S Diesel Motorsport LLY Rail - RH Side (w/ sensor). S&S Diesel Motorsport LLY Rail - RH Side (w/ sensor).

    S&S Fuel Rail with Sensor, Right Side | LLY Duramax

    S&S
    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00

    An S&S right side (RH) fuel rail for the LLY Duramax, with the rail pressure sensor. Fits: 2004.5 to 2005 LLY Duramax, right side. Part numb...

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    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00
  • S&S Diesel Motorsport LLY Rail - LH Side. S&S Diesel Motorsport LLY Rail - LH Side.

    S&S Fuel Rail, Left Side | LLY Duramax

    S&S
    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00

    An S&S left side (LH) fuel rail for the LLY Duramax. Fits: 2004.5 to 2005 LLY Duramax, left side. Part number: RAIL-LLY-LH Questions on fitm...

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    $288.00 - $288.00
    $288.00
    $288.00 - $288.00
    $288.00
  • 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 Single Stage Relief Valve, Internal Return, 2400 Bar | LLY, LBZ, LMM

    S&S
    $312.00 - $312.00
    $312.00
    $312.00 - $312.00
    $312.00

    An S&S DBV4 single stage relief valve with internal return, set at 2400 bar. It is the internal return style used on the LLY, LBZ and LMM Duram...

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    $312.00 - $312.00
    $312.00
    $312.00 - $312.00
    $312.00
  • 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 Single Stage Relief Valve, External Return, 2400 Bar | LB7 and 5.9 Cummins Style

    S&S
    $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    An S&S single stage rail pressure relief valve with external return, set at 2400 bar. This is the valve style used on the LB7 Duramax and 5.9 C...

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    $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00
  • 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, 1800 Bar | Stock LLY Duramax

    S&S
    $234.00 - $234.00
    $234.00
    $234.00 - $234.00
    $234.00

    A stock replacement rail pressure relief valve from S&S for the LLY Duramax, set at 1800 bar. It is a DBV4 2 stage valve with internal return, ...

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    $234.00 - $234.00
    $234.00
    $234.00 - $234.00
    $234.00
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    S&S Injector Seal Kit | LLY, LBZ and LMM Duramax

    S&S
    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00

    An S&S injector seal kit for the LLY, LBZ and LMM Duramax. Put new seals in every time an injector comes out. A reused combustion seal can leak...

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    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00
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    S&S SAC Nozzle Set, 30% to 100% Over | 2007.5 to 2010 LMM Duramax

    S&S
    $1,120.00 - $2,030.00
    $1,120.00
    $1,120.00 - $2,030.00
    $1,120.00

    A set of 8 S&S SAC nozzles for 2007.5 to 2010 LMM Duramax injectors, in 30, 45, 60, 80 and 100% over stock. Nozzles are how you add fuel when y...

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    $1,120.00 - $2,030.00
    $1,120.00
    $1,120.00 - $2,030.00
    $1,120.00
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    S&S SAC Nozzle Set, 30% to 100% Over | 2004.5 to 2005 LLY Duramax

    S&S
    $1,064.00 - $1,617.00
    $1,064.00
    $1,064.00 - $1,617.00
    $1,064.00

    A set of 8 S&S SAC nozzles for 2004.5 to 2005 LLY Duramax injectors, in 30, 45, 60, 80 and 100% over stock. Nozzles are how you add fuel when y...

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    $1,064.00 - $1,617.00
    $1,064.00
    $1,064.00 - $1,617.00
    $1,064.00
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    S&S SAC Nozzle Set, 30% to 100% Over | 2001 to 2004 LB7 Duramax

    S&S
    $1,176.00 - $1,913.00
    $1,176.00
    $1,176.00 - $1,913.00
    $1,176.00

    A set of 8 S&S SAC nozzles for 2001 to 2004 LB7 Duramax injectors, in 30, 45, 65, 80 and 100% over stock. Nozzles are how you add fuel when you...

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    $1,176.00 - $1,913.00
    $1,176.00
    $1,176.00 - $1,913.00
    $1,176.00
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    Yukon Gear Thrust Washer Kit For GM 7.2in IFS Stub Shaft

    Yukon Gear & Axle
    $49.89 - $49.89
    $49.89
    $49.89 - $49.89
    $49.89

    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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    $49.89 - $49.89
    $49.89
    $49.89 - $49.89
    $49.89
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    Yukon Gear Ring and Pinion Gear Set 7.2in GM 4.56 ratio

    Yukon Gear & Axle
    $495.81 - $495.81
    $495.81
    $495.81 - $495.81
    $495.81

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

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    $495.81 - $495.81
    $495.81
    $495.81 - $495.81
    $495.81
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    Yukon High Performance Yukon Ring & Pinion Gear Set for GM IFS 7.2in S10 & S15 In A 4.11 Ratio

    Yukon Gear & Axle
    $580.89 - $580.89
    $580.89
    $580.89 - $580.89
    $580.89

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

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    $580.89 - $580.89
    $580.89
    $580.89 - $580.89
    $580.89
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    Yukon Gear High Performance Gear Set For GM IFS 7.2in (S10 & S15) in a 3.73 Ratio

    Yukon Gear & Axle
    $575.29 - $575.29
    $575.29
    $575.29 - $575.29
    $575.29

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

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    $575.29 - $575.29
    $575.29
    $575.29 - $575.29
    $575.29
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    Yukon Gear High Performance Gear Set For GM IFS 7.2in (S10 & S15) in a 3.42 Ratio

    Yukon Gear & Axle
    $575.29 - $575.29
    $575.29
    $575.29 - $575.29
    $575.29

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

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    $575.29 - $575.29
    $575.29
    $575.29 - $575.29
    $575.29
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    Yukon Gear Yoke For GM 7.2in

    Yukon Gear & Axle
    $166.89 - $166.89
    $166.89
    $166.89 - $166.89
    $166.89

    Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-d...

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    $166.89 - $166.89
    $166.89
    $166.89 - $166.89
    $166.89
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    Yukon Gear Standard Open Spider Gear Kit For GM 7.2in S10 and S15 IFS

    Yukon Gear & Axle
    $248.89 - $248.89
    $248.89
    $248.89 - $248.89
    $248.89

    Yukon standard open spider gear kit for GM 7.2" S10 and S15 IFS. Yukon uses higher quality materials and better techniques than OEM to ensure a lon...

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    $248.89 - $248.89
    $248.89
    $248.89 - $248.89
    $248.89
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    Yukon Gear GM 9.76in & 2014 & Up GM 9.5in 12 Bolt Cover Gasket

    Yukon Gear & Axle
    $54.89 - $54.89
    $54.89
    $54.89 - $54.89
    $54.89

    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
    $54.89 - $54.89
    $54.89
    $54.89 - $54.89
    $54.89
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    Eaton GM 9.76in Rear Master Install Kit

    Eaton
    $349.71
    $349.71 - $349.71
    $349.71
    $299.99
    $299.99 - $299.99
    $299.99

    Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differ...

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    $349.71
    $349.71 - $349.71
    $349.71
    $299.99
    $299.99 - $299.99
    $299.99
    Save 14% Save %

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.