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LB7 Duramax Engine Parts

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    Fleece Performance 01-17 GM Duramax Billet Coolant Block Off Plate

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $55.00
    $55.00 - $55.00
    $55.00

    Fleece Performance Billet Coolant Block Off Plate Fits 2001-2017 GM 6.6L Duramax A direct replacement for the factory coolant crossover on the Dura...

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    $0.00 - $0.00
    $0.00
    $55.00
    $55.00 - $55.00
    $55.00
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    Wehrli 01-16 Chevrolet 6.6L LB7/LLY/LBZ/LMM/LML Duramax Up Pipe Bolt Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $36.86
    $36.86 - $36.86
    $36.86

    Wehrli Model WCF100240 ARP Bolt kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down pipe. 6 Washers and Bolts for installing 1 up pipe. Includes A...

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    $0.00 - $0.00
    $0.00
    $36.86
    $36.86 - $36.86
    $36.86
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    XDP Mass Air Flow (MAF) Sensor 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ XD1024

    XDP
    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $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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    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $83.95
  • XDP Harmonic Balancer Bolt XD628. XDP Harmonic Balancer Bolt XD628.

    XDP Harmonic Balancer Bolt XD628

    XDP
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    XDP Harmonic Balancer Bolt XD628. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: XD628...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

    Wehrli
    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41

    Wehrli Model WCF100442Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized Clean up the engine bay of your 2001-202...

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    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41
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    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set

    Mishimoto
    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $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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    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95
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    XDP Duramax Cat Adapter With 1R-0750 Filter, Bleeder Screw & Spacer XD171

    XDP
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    XDP Model XD171The XDP Duramax CAT Adapter with 1R-0750 Filter, Bleeder Screw & Spacer XD171 is an easy way to upgrade the fuel filter on your ...

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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
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    Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 Duramax/w 1/4 NPT Oil Inlet

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-DTFL-S3S4-0116Problem: The factory turbo oil feed used on 2001-2016 Duramax's is supplied off of the #4 cam journal be...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    XDP High Output 220 Amp Alternator XD224

    XDP
    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95

    XDP Model XD224Don't just replace the failing alternator in your 2001-2007 GM 6.6L Duramax, upgrade it with the XDP Direct Replacement High Output ...

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    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95
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    ARP 01-10 6.6L GM Duramax Diesel Head Stud Kit

    ARP
    $814.20 - $814.20
    $814.20
    $814.20 - $814.20
    $814.20

    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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    $814.20 - $814.20
    $814.20
    $814.20 - $814.20
    $814.20
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    Fleece Replacement Transmission Line, Medium | 2001 to 2005 GM 2500 3500 Duramax

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-TL-LB7-LMM-MED-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line ...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    Exergy LB7 Duramax Rail End to M14x1.5

    Exergy
    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00

    Exergy LB7 Duramax Rail End to M14x1.5. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number:...

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    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00
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    Fleece Remote Turbo Oil Feed Line Kit | 2001 to 2016 Duramax

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Remote Turbo Oil Feed Line Kit for the 2001 to 2016 Duramax. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in ...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Black

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $39.99
    $39.99 - $39.99
    $39.99

    Fleece Performance Model FPE-DMAX-OC-BLKDress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes o-ring and cam-lo...

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    $0.00 - $0.00
    $0.00
    $39.99
    $39.99 - $39.99
    $39.99
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    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L High Temp Thermostat Set

    Mishimoto
    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95

    Mishimoto 01-10 Chevy Duramax 2500 6.6L 185 & 191F Degrees Racing Thermostat The Mishimoto Chevrolet Duramax high temperature thermostats activ...

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    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95
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    Mishimoto Upper & Lower Silicone Radiator Hose Kit 2001-2005 Duramax 6.6L

    Mishimoto
    $352.00
    $352.00 - $352.00
    $352.00
    $319.95
    $319.95 - $319.95
    $319.95

    Mishimoto Upper & Lower Silicone Radiator Hose Kit 2001-2005 Duramax 6.6L Mishimoto's Duramax coolant hose kits are constructed from a combinat...

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    $352.00
    $352.00 - $352.00
    $352.00
    $319.95
    $319.95 - $319.95
    $319.95
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    Yukon 11.5 Inch GM and Chrysler Pinion Nut

    Yukon Gear & Axle
    $31.89 - $31.89
    $31.89
    $31.89 - $31.89
    $31.89

    Yukon 11.5 Inch GM and Chrysler Pinion Nut. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN.Questions ...

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    $31.89 - $31.89
    $31.89
    $31.89 - $31.89
    $31.89
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 Intake Air Heater Delete Plug

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $37.95
    $37.95 - $37.95
    $37.95

    Fleece Performance Model FPE-LB7-IAH-DELETEThe Fleece Performance Intake Air Heater Delete is a simple way to remove the air intake heater on your ...

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    $0.00 - $0.00
    $0.00
    $37.95
    $37.95 - $37.95
    $37.95
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    XDP X220 Series Head Stud Kit XD3006HS

    XDP
    $524.95 - $524.95
    $524.95
    $524.95 - $524.95
    $524.95

    XDP Model XD3006HSThe XDP X220 Series Head Stud Kit XD3006HS is a must have for your high performance 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML...

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    $524.95 - $524.95
    $524.95
    $524.95 - $524.95
    $524.95

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

    Powerhouse Diesel
    $1,550.00 - $1,850.00
    $1,550.00
    $1,550.00 - $1,850.00
    $1,550.00

    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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    $1,550.00 - $1,850.00
    $1,550.00
    $1,550.00 - $1,850.00
    $1,550.00
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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 01-04 Chevrolet Duramax LB7 Premium Stock Plus Cyl. Heads w/Torque Lock Cups

    Industrial Injection
    $2,199.95
    $2,199.95 - $2,199.95
    $2,199.95
    $2,133.95
    $2,133.95 - $2,133.95
    $2,133.95

    Industrial Injection 2001 to 2004 Chevrolet Duramax LB7 Premium Stock Plus Cyl. Heads with Torque Lock Cups. Sold and shipped by Powerhouse Diesel,...

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    $2,199.95
    $2,199.95 - $2,199.95
    $2,199.95
    $2,133.95
    $2,133.95 - $2,133.95
    $2,133.95
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    Industrial Injection 01-04 Chevrolet Duramax LB7 New Premium Stock Plus Cylinder Heads

    Industrial Injection
    $2,499.95
    $2,499.95 - $2,499.95
    $2,499.95
    $2,424.95
    $2,424.95 - $2,424.95
    $2,424.95

    Industrial Injection 2001 to 2004 Chevrolet Duramax LB7 New Premium Stock Plus Cylinder Heads. Sold and shipped by Powerhouse Diesel, a diesel repa...

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    $2,499.95
    $2,499.95 - $2,499.95
    $2,499.95
    $2,424.95
    $2,424.95 - $2,424.95
    $2,424.95
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LB7 Duramax engine parts for 2001 to 2004 Chevy Silverado HD and GMC Sierra HD trucks.

The LB7 is the original Duramax, built by GM and Isuzu with a cast iron block, aluminum heads and a Bosch CP3 pump. The bottom end is stout. Most LB7 engine work comes down to injector related repairs, valve cover gaskets, head studs for higher power and fuel filter head leaks.

Related: LB7 fuel injectors, LB7 fuel system, LB7 tuning. Browse all LB7 Duramax parts.

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