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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • Body Mount Kit For 2001-2005 Chevy / GMC 1500, 2500, 3500 Standard Cab

    S&B
    Original price $658.00 - Original price $658.00
    Original price
    $658.00
    $658.00 - $658.00
    Current price $658.00

    S&B Model 81-2000These bushings offer great vibration isolation and will not crack or breakdown like the OEM foam or rubber bushings. Also come...

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    Original price $658.00 - Original price $658.00
    Original price
    $658.00
    $658.00 - $658.00
    Current price $658.00
  • Fox 2.0 Performance Series (single) Front Shock For 2001–2010 Chevy/GMC 1500HD/2500HD/3500HD Trucks & Suvs

    Kryptonite
    Original price $337.00 - Original price $337.00
    Original price
    $337.00
    $337.00 - $337.00
    Current price $337.00

    Part# KRS663 Sold Individually Fits; 2001–2010 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD (2WD/4WD), 2001–2013 Chevy & GMC 2500...

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    Original price $337.00 - Original price $337.00
    Original price
    $337.00
    $337.00 - $337.00
    Current price $337.00
  • Fox 2.0 Performance Series (single) Rear Shock For 2001–2025 Chevy/GMC 2500HD/3500HD

    Kryptonite
    Original price $337.00 - Original price $337.00
    Original price
    $337.00
    $337.00 - $337.00
    Current price $337.00

    Part# KRS664 Sold Individually Fits; 2001–2025 Chevrolet/GMC 2500HD & 3500HD Trucks Description: The Fox 2.0 Performance Series Rear Shock is e...

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    Original price $337.00 - Original price $337.00
    Original price
    $337.00
    $337.00 - $337.00
    Current price $337.00
  • Kryptonite Shock Extensions For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00

    Parts #- KRSE10 Fits: 2001-2010 2500 / 3500 GM HD Truck Description: Kryptonite Shock Extensions are the easiest way to space your stock length sho...

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    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • Bilstein 5100 Series Steering Stabilizer For 2001–2010 Chevy/GMC 1500HD/2500HD/3500HD Trucks & 2002–2009 Hummer H2

    Kryptonite
    Original price $191.00 - Original price $191.00
    Original price
    $191.00
    $191.00 - $191.00
    Current price $191.00

    Fits; 2001–2010 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD (2WD/4WD), 2001–2013 Chevy & GMC 2500 2WD/4WD SUVs, 2003–2009 Hummer...

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    Original price $191.00 - Original price $191.00
    Original price
    $191.00
    $191.00 - $191.00
    Current price $191.00
  • Kryptonite Leveling Key Set For 2001–2010 Chevy/GMC 1500HD/2500HD/3500HD

    Kryptonite
    Original price $167.00 - Original price $167.00
    Original price
    $167.00
    $167.00 - $167.00
    Current price $167.00

    Fits; 2001–2010 Chevrolet / GMC 2500HD & 3500HD Important Fitment Info: This kit is designed to level the front suspension without compromising...

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    Original price $167.00 - Original price $167.00
    Original price
    $167.00
    $167.00 - $167.00
    Current price $167.00
  • Kryptonite Stage 3 Leveling Kit With Fox Shocks For 2001–2010 Chevy/GMC HD Trucks & 2002–2009 Hummer H2

    Kryptonite
    Original price $2,171.00 - Original price $2,171.00
    Original price
    $2,171.00
    $2,171.00 - $2,171.00
    Current price $2,171.00

    Fits:2001–2010 Chevy/GMC 1500HD, 2500HD, 3500HD2002–2009 Hummer H2 (8 Lug Trucks Only)2001-2013 Chevy/GMC 2500 SUV Important Fitment Info: This kit...

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    Original price $2,171.00 - Original price $2,171.00
    Original price
    $2,171.00
    $2,171.00 - $2,171.00
    Current price $2,171.00
  • Kryptonite Stage 2 Leveling Kit With Shock Extensions For Chevy/GMC 2001–2010 HD Trucks 2002-2009 Hummer H2

    Kryptonite
    Original price $1,113.00 - Original price $1,113.00
    Original price
    $1,113.00
    $1,113.00 - $1,113.00
    Current price $1,113.00

    Fits:2001–2010 Chevrolet / GMC 1500HD / 2500HD / 3500HD2002–2009 Hummer H2 (8 Lug Trucks Only)2001-2013 Chevy/GMC 2500 SUV Important Fitment Info: ...

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    Original price $1,113.00 - Original price $1,113.00
    Original price
    $1,113.00
    $1,113.00 - $1,113.00
    Current price $1,113.00
  • Kryptonite Stage 1 Leveling Kit For 2001–2010 Chevy/GMC 8-lug Trucks

    Kryptonite
    Original price $223.00 - Original price $223.00
    Original price
    $223.00
    $223.00 - $223.00
    Current price $223.00

    Fits:2001–2010 Chevy/GMC 1500HD / 2500HD / 3500HD2002–2009 Hummer H2 (8 Lug Trucks)2001-2013 Chevy/GMC 2500 SUV Important Fitment Info: Provides u...

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    Original price $223.00 - Original price $223.00
    Original price
    $223.00
    $223.00 - $223.00
    Current price $223.00
  • Kryptonite Idler Side Package For 2001–2010 Chevy/GMC 1500HD/2500HD/3500 Trucks

    Kryptonite
    Original price $766.00 - Original price $766.00
    Original price
    $766.00
    $766.00 - $766.00
    Current price $766.00

    Part #- KRISP10 Fits: 2001–2010 Chevy/GMC 2500HD / 3500HD Trucks Important Fitment Info: This kit will not function properly with "Drop Centerl...

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    Original price $766.00 - Original price $766.00
    Original price
    $766.00
    $766.00 - $766.00
    Current price $766.00
  • Kryptonite Idler Support For 1999–2010 Chevy/GMC Trucks & Hummer H2

    Kryptonite
    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00

    Fits: 2001–2010 Chevrolet and GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD trucks 2001–2013 2500 Suburban and 2500 Yukon XL 2003–2009 Hummer H2 and ...

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    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00
  • Kryptonite Idler Arm For 2001–2010 Chevy/GMC HD Trucks & Hummer H2

    Kryptonite
    Original price $418.00 - Original price $418.00
    Original price
    $418.00
    $418.00 - $418.00
    Current price $418.00

    Part# 10KDG535 Fits: 2001–2010 Chevy/GMC 1500HD, 2500HD, 3500 GM Trucks Features: Robust Construction - Forged Idler Body High Grade Materials -...

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    Original price $418.00 - Original price $418.00
    Original price
    $418.00
    $418.00 - $418.00
    Current price $418.00
  • Kryptonite Uni-spline Pitman Arm For 1988-2010 Chevy/GMC 6 & 8 Lug Trucks

    Kryptonite
    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00

    Fits: 1988–2010 Chevy Silverado 1500/1500HD/2500HD/3500 1988–2010 GMC Sierra 1500/1500HD/2500HD/3500 Important Fitment Details: 8 Lug and 6 Lug Tru...

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    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00
  • Kryptonite Ss Centerlink And Tie Rod Package 2001–2010 HD Trucks & 2002-2009 Hummer H2

    Kryptonite
    Original price $1,113.00 - Original price $1,113.00
    Original price
    $1,113.00
    $1,113.00 - $1,113.00
    Current price $1,113.00

    Fits: 2001–2010 Chevrolet / GMC 1500HD, 2500HD, 3500HD2002–2009 Hummer H2(For 8-lug trucks only) Important Fitment Info: This system is engineered ...

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    Original price $1,113.00 - Original price $1,113.00
    Original price
    $1,113.00
    $1,113.00 - $1,113.00
    Current price $1,113.00
  • Wagler Pushrods - 01-16 GM Duramax 6.6L

    Wagler
    Original price $734.00 - Original price $734.00
    Original price
    $734.00
    $734.00 - $734.00
    Current price $734.00

    Wagler Model WCPC6664 Fitment Notes: 2001-2016 GM Duramax 6.6L LLB7/LLY/LBZ/LMM/LML  Upgrade the valvetrain in your 2001-2016 GM 6.6L Duramax with ...

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    Original price $734.00 - Original price $734.00
    Original price
    $734.00
    $734.00 - $734.00
    Current price $734.00
  • PPE 118034300 Head Stud Kit

    PPE
    Original price $791.00 - Original price $791.00
    Original price
    $791.00
    $791.00 - $791.00
    Current price $791.00

    The PPE 118034300 Head Stud Kit is engineered to handle higher boost levels and is an excellent upgrade over the stock bolts in your 2001-2016 GM 6...

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    Original price $791.00 - Original price $791.00
    Original price
    $791.00
    $791.00 - $791.00
    Current price $791.00
  • XDP Performance Valve Springs & Retainer Kit XD386

    XDP
    Original price $1,021.00 - Original price $1,021.00
    Original price
    $1,021.00
    $1,021.00 - $1,021.00
    Current price $1,021.00

    XDP Model XD386 The XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Cams...

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    Original price $1,021.00 - Original price $1,021.00
    Original price
    $1,021.00
    $1,021.00 - $1,021.00
    Current price $1,021.00
  • XDP Rocker Arm Shafts XD385

    XDP
    Original price $711.00 - Original price $711.00
    Original price
    $711.00
    $711.00 - $711.00
    Current price $711.00

    XDP Model XD385 The XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001-2019 GM 6.6L Duramax engin...

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    Original price $711.00 - Original price $711.00
    Original price
    $711.00
    $711.00 - $711.00
    Current price $711.00
  • XDP Billet Rocker Arm Valve Bridge Set XD384

    XDP
    Original price $687.00 - Original price $687.00
    Original price
    $687.00
    $687.00 - $687.00
    Current price $687.00

    XDP Model XD384 The XDP Billet Rocker Arm Valve Bridge Set XD384 will greatly improve the factory valvetrain in your modified 2001-2016 GM 6.6L Du...

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    Original price $687.00 - Original price $687.00
    Original price
    $687.00
    $687.00 - $687.00
    Current price $687.00
  • XDP Wrinkle Black HD High Output Alternator XD355

    XDP
    Original price $700.00 - Original price $700.00
    Original price
    $700.00
    $700.00 - $700.00
    Current price $700.00

    XDP Model XD355 Increase the output of the charging system in your 2001-2007 GM 6.6L Duramax with the XDP Wrinkle Black HD High Output Alternator X...

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    Original price $700.00 - Original price $700.00
    Original price
    $700.00
    $700.00 - $700.00
    Current price $700.00
  • XDP 7/16" Competition & Race Performance Pushrods XD316

    XDP
    Original price $583.00 - Original price $583.00
    Original price
    $583.00
    $583.00 - $583.00
    Current price $583.00

    XDP Model XD316Restore lost power from the valvetrain in your 2001-2016 GM 6.6L Duramax with the XDP Pushrods 7/16" Competition & Race Performa...

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    Original price $583.00 - Original price $583.00
    Original price
    $583.00
    $583.00 - $583.00
    Current price $583.00
  • XDP 3/8" Street Performance Pushrods XD315

    XDP
    Original price $533.00 - Original price $533.00
    Original price
    $533.00
    $533.00 - $533.00
    Current price $533.00

    XDP Model XD315The XDP Pushrods 3/8" Street Performance XD315 eliminate the weak link in the valvetrain of your 2001-2016 GM 6.6L Duramax. The fact...

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    Original price $533.00 - Original price $533.00
    Original price
    $533.00
    $533.00 - $533.00
    Current price $533.00
  • Smeding Diesel S475 T6 Turbocharger

    Smeding
    Original price $1,171.00 - Original price $1,838.00
    Original price
    $1,171.00
    $1,171.00 - $1,838.00
    Current price $1,171.00

    Smeding Diesel S475/96 T6 Turbocharger This turbo may be purchased with 1.32 or 1.15 exhaust housing

    Original price $1,171.00 - Original price $1,838.00
    Original price
    $1,171.00
    $1,171.00 - $1,838.00
    Current price $1,171.00
  • Smeding Diesel Billet S483 T6 Turbocharger

    Smeding
    Original price $1,875.00 - Original price $2,138.00
    Original price
    $1,875.00
    $1,875.00 - $2,138.00
    Current price $1,875.00

    Smeding Diesel S483/96 T6 Turbocharger This turbo may be purchased with 1.32 or 1.15 exhaust housing

    Original price $1,875.00 - Original price $2,138.00
    Original price
    $1,875.00
    $1,875.00 - $2,138.00
    Current price $1,875.00

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.

Powerhouse Diesel