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LLY Duramax Engine Parts

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  • New 6.6L Duramax Cylinder Heads (Pair), New Casting Machined In House LB7 to LML

    Powerhouse Diesel
    $1,900.00 - $2,300.00
    $1,900.00
    $1,900.00 - $2,300.00
    $1,900.00

    Brand new Duramax cylinder heads. Price is for the pair. Both heads, ready to bolt on. New castings that have never been installed in an engine or ...

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    $1,900.00 - $2,300.00
    $1,900.00
    $1,900.00 - $2,300.00
    $1,900.00
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    Industrial Injection 01-16 6.6L Duramax LB7-LML .020 Over Coated De-Lipped X Series Pistons

    Industrial Injection
    $2,399.95
    $2,399.95 - $2,399.95
    $2,399.95
    $2,327.95
    $2,327.95 - $2,327.95
    $2,327.95

    Industrial Injection 2001 to 2016 6.6L Duramax LB7-LML .020 Over Coated De Lipped X Series Pistons. Sold and shipped by Powerhouse Diesel, a diesel...

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    $2,399.95
    $2,399.95 - $2,399.95
    $2,399.95
    $2,327.95
    $2,327.95 - $2,327.95
    $2,327.95
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    Industrial Injection 01-16 Chevrolet Duramax 6.6L 130lb Valve Spring Kit

    Industrial Injection
    $900.95
    $900.95 - $900.95
    $900.95
    $873.92
    $873.92 - $873.92
    $873.92

    Industrial Injection 2001 to 2016 Chevrolet Duramax 6.6L 130lb Valve Spring Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and perform...

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    $900.95
    $900.95 - $900.95
    $900.95
    $873.92
    $873.92 - $873.92
    $873.92
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    Industrial Injection 04.5-05 Chevrolet Duramax LLY Ported & Polished Cylinder Heads

    Industrial Injection
    $3,995.95
    $3,995.95 - $3,995.95
    $3,995.95
    $3,876.07
    $3,876.07 - $3,876.07
    $3,876.07

    Fits: 2004 to 2005 Chevrolet Silverado 2500 HD; 2004 to 2005 GMC Sierra 2500 HD. Questions on fitment? Call our shop at 865 640 2097 and talk to a ...

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    $3,995.95
    $3,995.95 - $3,995.95
    $3,995.95
    $3,876.07
    $3,876.07 - $3,876.07
    $3,876.07
    Save 3% Save %

  • Powerhouse Diesel 01-16 GM 6.6L Duramax Short Block

    Powerhouse Diesel
    $8,550.00 - $8,550.00
    $8,550.00
    $8,550.00 - $8,550.00
    $8,550.00

    We own the machines that build this engine. Every operation happens under our roof. No outsourced machine shop, no third party assembler, no waitin...

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    $8,550.00 - $8,550.00
    $8,550.00
    $8,550.00 - $8,550.00
    $8,550.00
    Select Options
  • User 1 User 1

    Fleece Performance 01-04 GM 2500/3500 Duramax (w/Allison Transmission) NSBU Pigtails

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $79.99
    $79.99 - $79.99
    $79.99

    Fleece Performance Model FPE-HAR-GM-NSBU-0104Fleece Performance 01-04 GM 2500/3500 Duramax (w/Allison Transmission) NSBU Pigtails Replacement NSBU ...

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    $0.00 - $0.00
    $0.00
    $79.99
    $79.99 - $79.99
    $79.99
  • Photo - Primary Photo - Primary

    Yukon Gear Dana M300/Dana S135 Carrier Bearing Kit - 2.953in ID/ 4.370in OD

    Yukon Gear & Axle
    $161.20 - $161.20
    $161.20
    $161.20 - $161.20
    $161.20

    Yukon Gear & Axle Model CK FF001Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one i...

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    $161.20 - $161.20
    $161.20
    $161.20 - $161.20
    $161.20
  • Photo - Close Up Photo - Primary Save 10% Save %

    Banks Power Pedal Monster Kit Molex MX64 6 Way With iDash Data Pro

    Banks Power
    $838.89
    $838.89 - $838.89
    $838.89
    $755.00
    $755.00 - $755.00
    $755.00

    Banks Power Pedal Monster Kit Molex MX64 6 Way With iDash Data Pro. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in ...

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    $838.89
    $838.89 - $838.89
    $838.89
    $755.00
    $755.00 - $755.00
    $755.00
    Save 10% Save %
  • User 3 User 3

    AMP Research 01-06 GMC Sierra 1500 HD Powerstep Wiring Harness w/ Connector

    AMP Research
    $39.99 - $39.99
    $39.99
    $39.99 - $39.99
    $39.99

    Getting into your truck shouldn't feel like climbing Mount Everest. That's why AMP Research invested in POWERSTEP, the automatic, electric-powered ...

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    $39.99 - $39.99
    $39.99
    $39.99 - $39.99
    $39.99
  • Photo - Close Up Photo - Primary Save 10% Save %

    Banks Power Pedal Monster Kit Molex MX64 6 Way With iDash Pro

    Banks Power
    $793.33
    $793.33 - $793.33
    $793.33
    $714.00
    $714.00 - $714.00
    $714.00

    Banks Power Model 64312-PTotal Throttle Control. Unlike conventional cable throttles, where your pedal is directly attached to the engine's butterf...

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    $793.33
    $793.33 - $793.33
    $793.33
    $714.00
    $714.00 - $714.00
    $714.00
    Save 10% Save %
  • Photo - Primary Photo - Primary

    ARP Chevy/GM 6.6L Duramax Diesel Rod Bolt Kit

    ARP
    $277.11 - $277.11
    $277.11
    $277.11 - $277.11
    $277.11

    Fits: 10 vehicle models, including 2001 to 2012 Chevrolet Silverado 2500 HD; 2001 to 2012 GMC Sierra 2500 HD; 2006 to 2012 Chevrolet Express 2500. ...

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    $277.11 - $277.11
    $277.11
    $277.11 - $277.11
    $277.11
  • Photo - Primary Photo - Primary

    ARP 01-10 6.6L GM Duramax CA625+ Diesel Head Stud Kit

    ARP
    $2,196.48 - $2,196.48
    $2,196.48
    $2,196.48 - $2,196.48
    $2,196.48

    Fits: 10 vehicle models, including 2001 to 2013 Chevrolet Silverado 2500 HD; 2001 to 2013 GMC Sierra 2500 HD; 2006 to 2013 Chevrolet Express 2500. ...

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    $2,196.48 - $2,196.48
    $2,196.48
    $2,196.48 - $2,196.48
    $2,196.48
  • Photo - Primary Photo - Primary

    ARP 01-06 6.6L GM Duramax Diesel Flywheel Bolt Kit

    ARP
    $95.75 - $95.75
    $95.75
    $95.75 - $95.75
    $95.75

    Fits: 10 vehicle models, including 2001 to 2012 Chevrolet Silverado 2500 HD; 2001 to 2012 GMC Sierra 2500 HD; 2006 to 2012 Chevrolet Express 2500. ...

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    $95.75 - $95.75
    $95.75
    $95.75 - $95.75
    $95.75
  • Photo - Primary Photo - Primary

    ARP 01-10 6.6L GM Duramax Diesel Flexplate Bolt Kit

    ARP
    $97.98 - $97.98
    $97.98
    $97.98 - $97.98
    $97.98

    Fits: 10 vehicle models, including 2001 to 2012 Chevrolet Silverado 2500 HD; 2001 to 2012 GMC Sierra 2500 HD; 2006 to 2012 Chevrolet Express 2500. ...

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    $97.98 - $97.98
    $97.98
    $97.98 - $97.98
    $97.98
  • Photo - Primary Photo - Primary

    ARP 05 & Earlier Chevy Duramax Diesel LB7/LLY Main Stud Kit

    ARP
    $307.28 - $307.28
    $307.28
    $307.28 - $307.28
    $307.28

    ARP 05 & Earlier Chevy Duramax Diesel LB7/LLY Main Stud Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Kno...

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    $307.28 - $307.28
    $307.28
    $307.28 - $307.28
    $307.28
  • responsive-image responsive-image

    Performance Balancer Series - Diesel Performance Harmonic Balancer 01-05 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance

    XDP
    $676.95 - $676.95
    $676.95
    $676.95 - $676.95
    $676.95

    Upgrade your high-performance GM 6.6L Duramax LML/LGH with XDP Performance Balancer Series - Diesel Performance Harmonic Balancer XD722. High-perfo...

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    $676.95 - $676.95
    $676.95
    $676.95 - $676.95
    $676.95
  • responsive-image responsive-image

    Premium Balancer Series - Stock Replacement Harmonic Balancer 01-05 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance

    XDP
    $464.95 - $464.95
    $464.95
    $464.95 - $464.95
    $464.95

    The XDP Premium Balancer Series - Stock Replacement Harmonic Balancer XD709 is an ideal replacement for the worn harmonic balancer on your GM 6.6L ...

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    $464.95 - $464.95
    $464.95
    $464.95 - $464.95
    $464.95
  • User 1 User 1

    Fleece Performance 04.5-05 GM 2500/3500 Duramax (w/Allison Transmission) NSBU Pigtail

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-HAR-GM-NSBU-0405Fleece Performance 04.5-05 GM 2500/3500 Duramax (w/Allison Transmission) NSBU Pigtail Replacement NSBU...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
  • XDP Flex Plate Bolt Kit XD656. XDP Flex Plate Bolt Kit XD656.

    XDP Flex Plate Bolt Kit XD656

    XDP
    $74.95 - $74.95
    $74.95
    $74.95 - $74.95
    $74.95

    XDP Model XD656 XDP Flex Plate Bolt Kit XD656

    $74.95 - $74.95
    $74.95
    $74.95 - $74.95
    $74.95
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    Wehrli 01-10 GM Lower Splash Shield Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03

    Wehrli Model WCF100463 The WCFab Splash Shield Kit for 2001-2010 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replace...

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    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03
    Select Options
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    GM Race Camshaft For 01-16 Duramax Alternate Firing Billet Stage 1 With Key Industrial Injection

    Industrial Injection
    $1,814.95
    $1,814.95 - $1,814.95
    $1,814.95
    $1,760.50
    $1,760.50 - $1,760.50
    $1,760.50

    Industrial Injection Model: PDM-DMXAFS1Duramax Alternate Firing Billet Race Camshaft w/ Key Features: 1000+hp Capable Alternate Firing Order (rel...

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    $1,814.95
    $1,814.95 - $1,814.95
    $1,814.95
    $1,760.50
    $1,760.50 - $1,760.50
    $1,760.50
    Save 3% Save %
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    ACDelco Speed Sensor 19300584 For 2001 to 2007 Classic Chevy/GMC 2500HD/3500HD Trucks

    Kryptonite
    $69.34 - $69.34
    $69.34
    $69.34 - $69.34
    $69.34

    Fits; 2001-2007 Classic Body 2500HD 3500HD Truck DESRIPTION Replacement ABS Wheel Speed sensor for front wheel hub assembly on 2001-2007 model...

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    $69.34 - $69.34
    $69.34
    $69.34 - $69.34
    $69.34
  • responsive-image responsive-image

    Fleece Performance 01-10 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Long Line

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $139.99
    $139.99 - $139.99
    $139.99

    Fleece Performance Model FPE-TL-LB7-LMM-LONG-SER Fleece Performance 01-10 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Long Line ...

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    $0.00 - $0.00
    $0.00
    $139.99
    $139.99 - $139.99
    $139.99
  • responsive-image responsive-image

    Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LLY) - Short Line

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $79.99
    $79.99 - $79.99
    $79.99

    Fleece Performance Model FPE-TL-LB7-LLY-SHORT-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LLY) - Short Line...

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    $0.00 - $0.00
    $0.00
    $79.99
    $79.99 - $79.99
    $79.99

LLY Duramax engine parts for 2004.5 to 2005 Chevy Silverado HD and GMC Sierra HD trucks.

The LLY brought the first variable geometry turbo and EGR to the Duramax. Head gaskets, heat management and EGR parts are the usual LLY engine repairs, with head studs recommended for higher power.

Related: LLY fuel injectors, LLY fuel system, LLY tuning. Browse all LLY Duramax parts.

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