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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • Carrier Bearing Drop Kit | Chevy/GMC 2500HD 2WD/4WD (01-10)

    Rough Country
    Original price $29.95 - Original price $29.95
    Original price
    $29.95
    $29.95 - $29.95
    Current price $29.95

    Carrier bearing drop kit required for 01-06 1500 HD Pickups with 2-piece drive shafts.

    Original price $29.95 - Original price $29.95
    Original price
    $29.95
    $29.95 - $29.95
    Current price $29.95
  • LED Light Mounts | Upper Windshield | 54" Curved | Chevy/GMC 1500 (99-06 & Classic)

    Rough Country
    Original price $49.95 - Original price $49.95
    Original price
    $49.95
    $49.95 - $49.95
    Current price $49.95

    Ride proudly into the night with Rough Country's 54-inch Curved LED Upper Windshield Light Bar Mounts for 99-06 GM Pickups & SUV's. Our durable...

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    Original price $49.95 - Original price $49.95
    Original price
    $49.95
    $49.95 - $49.95
    Current price $49.95
  • HD Tie Rod Sleeves | Chevy/GMC 1500/2500HD/Tahoe/Yukon 4WD

    Rough Country
    Original price $39.95 - Original price $39.95
    Original price
    $39.95
    $39.95 - $39.95
    Current price $39.95

    One area seriously lacking on most GM trucks is the steering link. With an outside diameter of only 1/2in, one wrong turn can easily bend the tie r...

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    Original price $39.95 - Original price $39.95
    Original price
    $39.95
    $39.95 - $39.95
    Current price $39.95
  • 2 Inch Leveling Kit | Shock Ext | Chevy/GMC 2500HD (01-10)

    Rough Country
    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95

    Crank it up with Rough Country;s 2001-2010 Torsion Bar Leveling Kit. Featuring a set of durable, forged Torsion bar Keys and shock extension bracke...

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    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95
  • Bilstein B8 5160 Series Shock Absorber 11-23 Chevrolet Silverado 2500/3500 HD Rear For 0-2in Lift

    Bilstein
    Original price $289.00 - Original price $289.00
    Original price
    $289.00
    $289.00 - $289.00
    Current price $289.00

    Bilstein B8 5160 remote reservoir shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. The remote reservoir will of...

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    Original price $289.00 - Original price $289.00
    Original price
    $289.00
    $289.00 - $289.00
    Current price $289.00
  • Exergy Duramax CP3 Rear Outlet Fitting & Plug Kit

    Exergy
    Original price $64.00 - Original price $64.00
    Original price
    $64.00
    $64.00 - $64.00
    Current price $64.00

    Exergy Model 1-018-124 Exergy Duramax CP3 Rear Outlet Fitting and Plug Kit

    Original price $64.00 - Original price $64.00
    Original price
    $64.00
    $64.00 - $64.00
    Current price $64.00
  • Wehrli 2001-2007 Duramax LB7/LLY/LBZ Allison 4x4 Transfer Case Brace - WCFab Red

    Wehrli
    Original price $204.00
    Original price $204.00 - Original price $204.00
    Original price $204.00
    Current price $203.70
    $203.70 - $203.70
    Current price $203.70

    Wehrli Model WCF1001302001-2007 LB7/LLY/LBZ Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax ...

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    Original price $204.00
    Original price $204.00 - Original price $204.00
    Original price $204.00
    Current price $203.70
    $203.70 - $203.70
    Current price $203.70
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  • 1" Rear Block Kit - GM Truck

    ReadyLift
    Original price $159.95 - Original price $159.95
    Original price
    $159.95
    $159.95 - $159.95
    Current price $159.95

    Readylift Model 66-3051 QUICK OVERVIEW Chevy/GMC 1" OEM Style Rear Block Kit Single Rear Wheel Only (will not fit Dually) OEM style cast iron with...

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    Original price $159.95 - Original price $159.95
    Original price
    $159.95
    $159.95 - $159.95
    Current price $159.95
  • Wehrli LB7 / LLY / LBZ Duramax MAF Sensor Aluminum Weld Bung

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $33.95
    $33.95 - $33.95
    Current price $33.95

    Wehrli Model WCF205-26Wehrli LB7 / LLY / LBZ Duramax MAF Sensor Aluminum Weld Bung

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $33.95
    $33.95 - $33.95
    Current price $33.95
  • Kryptonite Traction Bar Rebuild Kit For 2001–2010 Chevy/GMC HP Trucks

    Kryptonite
    Original price $66.49 - Original price $66.49
    Original price
    $66.49
    $66.49 - $66.49
    Current price $66.49

    Fits; KRTB10 Part# KRTB10-R Death Grip Full Floating Traction Bar Rebuild Kit replaces all bushings and bump stops on your existing Traction bar k...

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    Original price $66.49 - Original price $66.49
    Original price
    $66.49
    $66.49 - $66.49
    Current price $66.49
  • WT Rubber Mats - Rear - Tan

    WeatherTech
    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

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    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90
  • WT Rubber Mats - Rear - Grey

    WeatherTech
    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

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    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90
  • WT Rubber Mats - Rear - Blk

    WeatherTech
    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

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    Original price $147.90 - Original price $147.90
    Original price
    $147.90
    $147.90 - $147.90
    Current price $147.90
  • WT FloorLiner - Front - Blk

    WeatherTech
    Original price $242.90 - Original price $242.90
    Original price
    $242.90
    $242.90 - $242.90
    Current price $242.90

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    Original price $242.90 - Original price $242.90
    Original price
    $242.90
    $242.90 - $242.90
    Current price $242.90
  • WT FloorLiner - Front - Blk

    WeatherTech
    Original price $242.90 - Original price $242.90
    Original price
    $242.90
    $242.90 - $242.90
    Current price $242.90

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    Original price $242.90 - Original price $242.90
    Original price
    $242.90
    $242.90 - $242.90
    Current price $242.90
  • DDP 04.5-05 Chevrolet Duramax 6.6L LLY Stock Reman Injector (Single)

    DDP
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $408.50
    $408.50 - $408.50
    Current price $408.50

    DDP Model DDPLLY-STKDuramax 04.5-05 LLY Injector: Remanufactured stock power level injector. Every internal component replaced with new OE componen...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $408.50
    $408.50 - $408.50
    Current price $408.50
  • Exergy Rail Fitting for HP Line into PRV Location LLY/LBZ/LMM & Cummins 6.7L

    Exergy
    Original price $77.00 - Original price $77.00
    Original price
    $77.00
    $77.00 - $77.00
    Current price $77.00

    Exergy Model 1-018-153-AExergy Rail Fitting for HP Line into PRV Location For Cummins 6.7L & LLY/LBZ/LMM

    Original price $77.00 - Original price $77.00
    Original price
    $77.00
    $77.00 - $77.00
    Current price $77.00
  • Exergy Port to Female M18x1.5 Cummins 6.7 / Duramax LLY/LBZ/LMM

    Exergy
    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00

    Exergy Model 1-018-167 Cummins 6.7 / Duramax LLY/LBZ/LMM Port to Female M18x1.5 - 1-018-167

    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00
  • Exergy PRV Plug w/O-Ring Cummins 6.7L/LLY/LBZ/LMM (Diagnostic Purposes Only)

    Exergy
    Original price $64.00 - Original price $64.00
    Original price
    $64.00
    $64.00 - $64.00
    Current price $64.00

    Exergy Model 1-018-172 Exergy PRV Plug w/O-Ring Cummins 6.7L/LLY/LBZ/LMM (Diagnostic Purposes Only)

    Original price $64.00 - Original price $64.00
    Original price
    $64.00
    $64.00 - $64.00
    Current price $64.00
  • Exergy 04.5-10 Chevrolet Duramax 6.6L LLY/LBZ/LMM Leak Rail Assembly (Passenger Side)

    Exergy
    Original price $61.00 - Original price $61.00
    Original price
    $61.00
    $61.00 - $61.00
    Current price $61.00

    Exergy 04.5-10 Chevy Duramax LLY/LBZ/LMM Leak Rail Assembly (Passenger Side)

    Original price $61.00 - Original price $61.00
    Original price
    $61.00
    $61.00 - $61.00
    Current price $61.00
  • Exergy 04.5-10 Chevrolet Duramax 6.6L LLY/LBZ/LMM Leak Rail Assembly (Driver Side)

    Exergy
    Original price $61.00 - Original price $61.00
    Original price
    $61.00
    $61.00 - $61.00
    Current price $61.00

    Exergy 04.5-10 Chevy Duramax LLY/LBZ/LMM Leak Rail Assembly (Driver Side)

    Original price $61.00 - Original price $61.00
    Original price
    $61.00
    $61.00 - $61.00
    Current price $61.00
  • Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New Stock Replacement Right Hand Fuel Rail

    Exergy
    Original price $250.00 - Original price $250.00
    Original price
    $250.00
    $250.00 - $250.00
    Current price $250.00

    Exergy 04.5-05 Chevy Duramax LLY New Stock Replacement RH Fuel Rail

    Original price $250.00 - Original price $250.00
    Original price
    $250.00
    $250.00 - $250.00
    Current price $250.00
  • DDP 04.5-05 Chevrolet Duramax 6.6L LLY Stock Brand New Injector (Single)

    DDP
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $517.75
    $517.75 - $517.75
    Current price $517.75

    DDP Model DDPNLLY-STKDuramax 04.5-05 LLY Injector: Brand New stock power level injector. Comes with all the latest revisions. Sold individually wit...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $517.75
    $517.75 - $517.75
    Current price $517.75
  • Exergy 04.5-05 Chevrolet Duramax 6.6L LLY 550 Alpha Stroker CP3 Pump (LBZ Based)

    Exergy
    Original price $3,700.00 - Original price $3,700.00
    Original price
    $3,700.00
    $3,700.00 - $3,700.00
    Current price $3,700.00

    Exergy Model E04 10210Exergy 04.5-05 Chevrolet Duramax 6.6L LLY 550 Alpha Stroker CP3 Pump (LBZ Based) The first of an industry leading series of p...

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    Original price $3,700.00 - Original price $3,700.00
    Original price
    $3,700.00
    $3,700.00 - $3,700.00
    Current price $3,700.00

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