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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • Schaeffer's 9012 SynShield OTR Plus Full Synthetic 10W-30

    Schaeffer's
    Original price $297.10 - Original price $360.54
    Original price
    $297.10
    $297.10 - $360.54
    Current price $297.10

    SynShield® OTR Plus 10W-30 Diesel Engine Oil is a premium advanced performance, fully synthetic, heavy-duty diesel engine oil formulated to provide...

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    Original price $297.10 - Original price $360.54
    Original price
    $297.10
    $297.10 - $360.54
    Current price $297.10
  • Smeding Diesel S464 T4 Turbocharger

    Smeding
    Original price $975.00 - Original price $1,510.00
    Original price
    $975.00
    $975.00 - $1,510.00
    Current price $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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    Original price $975.00 - Original price $1,510.00
    Original price
    $975.00
    $975.00 - $1,510.00
    Current price $975.00
  • XDP Xtra Cool Direct Fit Transmission Cooler XD309

    XDP
    Original price $235.95 - Original price $235.95
    Original price
    $235.95
    $235.95 - $235.95
    Current price $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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    Original price $235.95 - Original price $235.95
    Original price
    $235.95
    $235.95 - $235.95
    Current price $235.95
  • S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM

    S&S
    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00

    S&S Diesel Motorsport Low Pressure Injector Return Line Assembly LH Side LLY/LBZ/LMM. Sold and shipped by Powerhouse Diesel, a diesel repair an...

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    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • Edge 98611 Expandable EGT Probe for CS, CTS, CS2 and CTS2/3

    Edge
    Original price $188.95 - Original price $188.95
    Original price
    $188.95
    $188.95 - $188.95
    Current price $188.95

    Edge 98611 Expandable EGT Probe for CS, CTS, CS2 and CTS2/3. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxvil...

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    Original price $188.95 - Original price $188.95
    Original price
    $188.95
    $188.95 - $188.95
    Current price $188.95
  • Kryptonite Sway Bar End Links, 0 to 2 Inch Lift | 2001 to 2019 GM HD

    Kryptonite
    Original price $90.24 - Original price $90.24
    Original price
    $90.24
    $90.24 - $90.24
    Current price $90.24

    Fits; 2001–2019 Chevrolet & GMC 1500HD / 2500HD / 3500 Trucks Important Fitment Info: Approximately 1" longer than stock (7” hole-to-hole) Ide...

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    Original price $90.24 - Original price $90.24
    Original price
    $90.24
    $90.24 - $90.24
    Current price $90.24
  • Smeding Diesel S467 T4 90 Degree Cover Turbocharger

    Smeding
    Original price $1,150.00 - Original price $1,780.00
    Original price
    $1,150.00
    $1,150.00 - $1,780.00
    Current price $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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    Original price $1,150.00 - Original price $1,780.00
    Original price
    $1,150.00
    $1,150.00 - $1,780.00
    Current price $1,150.00
  • Smeding Diesel S300 Turbo Kit | 2004.5 to 2010 Duramax

    Smeding
    Original price $2,195.00 - Original price $2,560.00
    Original price
    $2,195.00
    $2,195.00 - $2,560.00
    Current price $2,195.00

    Smeding Diesel S300 Turbo Kit for 04-10 model Duramax PickupsThis kit includes the necessary parts to run a S300 frame turbo on a duramax powered t...

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    Original price $2,195.00 - Original price $2,560.00
    Original price
    $2,195.00
    $2,195.00 - $2,560.00
    Current price $2,195.00
  • KC 360 Turbo Rebuild Kit, Extreme | 6.0 Powerstroke, LBZ and LLY

    Kc Turbo
    Original price $99.00 - Original price $99.00
    Original price
    $99.00
    $99.00 - $99.00
    Current price $99.00

    KC 360 Turbo Rebuild Kit, Extreme for the 6.0 Powerstroke, LBZ and LLY. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop...

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    Original price $99.00 - Original price $99.00
    Original price
    $99.00
    $99.00 - $99.00
    Current price $99.00
  • Pusher Hollow Point Air Filter

    Pusher Intakes
    Original price $78.50 - Original price $78.50
    Original price
    $78.50
    $78.50 - $78.50
    Current price $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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    Original price $78.50 - Original price $78.50
    Original price
    $78.50
    $78.50 - $78.50
    Current price $78.50
  • XDP Mass Air Flow (MAF) Sensor 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ XD1024

    XDP
    Original price $83.95 - Original price $83.95
    Original price
    $83.95
    $83.95 - $83.95
    Current price $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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    Original price $83.95 - Original price $83.95
    Original price
    $83.95
    $83.95 - $83.95
    Current price $83.95
  • Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $251.23
    $251.23 - $251.23
    Current price $251.23

    Wehrli Model WCF100811Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black For use with WCFab S400 Single Turbo ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $251.23
    $251.23 - $251.23
    Current price $251.23
  • Fleece 04.5-10 PowerFlo® Lift Pump for 2004.5-2007 LLY/LBZ Duramax

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $799.00
    $799.00 - $799.00
    Current price $799.00

    The Fleece PowerFlo in tank lift pump for the 2004.5 to 2007 LLY and LBZ Duramax, an OEM style replacement that flows more than stock. Part number...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $799.00
    $799.00 - $799.00
    Current price $799.00
  • S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-RH Side LLY/LBZ/LMM

    S&S
    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00

    S&S Diesel Motorsport Low Pressure Injector Return Line Assembly RH Side LLY/LBZ/LMM. Sold and shipped by Powerhouse Diesel, a diesel repair an...

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    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • Exergy 2200 Bar Pressure Relief Valve | 6.7 Cummins, LLY, LBZ, LMM Duramax

    Exergy
    Original price $280.00 - Original price $280.00
    Original price
    $280.00
    $280.00 - $280.00
    Current price $280.00

    An Exergy 2200 bar (32,000 psi) pressure relief valve for the 6.7 Cummins and the LLY, LBZ and LMM Duramax.Questions on fitment? Call our shop at 8...

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    Original price $280.00 - Original price $280.00
    Original price
    $280.00
    $280.00 - $280.00
    Current price $280.00
  • Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Stainless Down Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $247.35
    $247.35 - $247.35
    Current price $247.35

    Wehrli Model WCF100703Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Stainless Down Pipe Replace the restrictive crushed factory turbo down ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $247.35
    $247.35 - $247.35
    Current price $247.35
  • Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Down Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $194.00
    $194.00 - $194.00
    Current price $194.00

    Wehrli Model WCF100120Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Down Pipe Replace the restrictive crushed factory turbo down pipe / exh...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $194.00
    $194.00 - $194.00
    Current price $194.00
  • Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set

    Mishimoto
    Original price $110.00
    Original price $110.00 - Original price $110.00
    Original price $110.00
    Current price $99.95
    $99.95 - $99.95
    Current price $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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    Original price $110.00
    Original price $110.00 - Original price $110.00
    Original price $110.00
    Current price $99.95
    $99.95 - $99.95
    Current price $99.95
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  • PureFlow AirDog 01-10 Chevrolet 6.6L Duramax FP-100-4G Fuel Pump

    AirDog
    Original price $761.00
    Original price $761.00 - Original price $761.00
    Original price $761.00
    Current price $738.00
    $738.00 - $738.00
    Current price $738.00

    Airdog Model A4SPBC185 This is the AirDog I FP-100-4G fuel system for the 2001-2010 Chevy/GMC Duramax 6.6L. This diesel lift pump mounts to the fra...

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    Original price $761.00
    Original price $761.00 - Original price $761.00
    Original price $761.00
    Current price $738.00
    $738.00 - $738.00
    Current price $738.00
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  • Pusher Max Compound Turbo System for 2004.5-2005 Duramax LLY Trucks

    Pusher Intakes
    Original price $3,150.99 - Original price $3,150.99
    Original price
    $3,150.99
    $3,150.99 - $3,150.99
    Current price $3,150.99

    Compound turbos for the LLY Duramax, built for anything from a stock daily driver to a 1000 HP race truck. Fits: 2004.5 to 2005 Chevy and GMC 2500...

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    Original price $3,150.99 - Original price $3,150.99
    Original price
    $3,150.99
    $3,150.99 - $3,150.99
    Current price $3,150.99
  • Schaeffer's 0700 SynShield Durability Advantage 15W-40

    Schaeffer's
    Original price $170.64 - Original price $316.08
    Original price
    $170.64
    $170.64 - $316.08
    Current price $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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    Original price $170.64 - Original price $316.08
    Original price
    $170.64
    $170.64 - $316.08
    Current price $170.64
  • Pusher Max 3 Inch Driver Side Charge Tube | 2004.5 to 2010 LLY, LBZ, LMM

    Pusher Intakes
    Original price $269.99 - Original price $269.99
    Original price
    $269.99
    $269.99 - $269.99
    Current price $269.99

    Pusher's Max 3 inch driver side charge tube for the 2004.5 to 2010 LLY, LBZ and LMM Duramax, routing air from the turbo to the intercooler on a smo...

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    Original price $269.99 - Original price $269.99
    Original price
    $269.99
    $269.99 - $269.99
    Current price $269.99
  • Kryptonite Alignment Cam Pins, 8 Piece | GM Trucks and SUVs

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

    Kryptonite
    Original price $218.49 - Original price $218.49
    Original price
    $218.49
    $218.49 - $218.49
    Current price $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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    Original price $218.49 - Original price $218.49
    Original price
    $218.49
    $218.49 - $218.49
    Current price $218.49

The LLY Duramax powered 2004.5 to 2005 Chevy Silverado HD and GMC Sierra HD trucks. It was the first Duramax with a variable geometry turbo and EGR, which helps it spool faster than the LB7.

Shop LLY Duramax Parts by Category

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

LLY Duramax FAQ

What is different about the LLY versus the LB7?

The LLY added a variable geometry turbo and EGR for faster spool and lower emissions.

Are LLY trucks known for overheating?

Some early LLY trucks ran hotter under load. Upgraded cooling parts are a common fix for trucks that tow heavy.