L5P Duramax Engine

L5P Duramax Engine Gaskets & Seals

L5P Duramax Valvetrain

L5P Duramax Up Pipes

L5P Duramax Exhaust Manifolds

L5P Duramax engine parts are designed to enhance performance, durability, and reliability on 2017+ Chevy and GMC 6.6L diesel trucks. Ideal for towing, hauling, and high-performance applications, these heavy-duty components improve horsepower, protect your engine, and ensure long-lasting operation—essential upgrades for diesel owners seeking maximum power and dependability

88 Items

Oil Catch Can Mishimoto MMOCC-RB — Oil Catch Can Mishimoto MMOCC-RB $127.95
Fits: Universal

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Duramax Gear Reduction Starter XDP XD251 — Duramax Gear Reduction Starter XDP XD251 $299.95
Fits: Duramax 2001-2019

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L5P Duramax 17-19 Map Sensor Spacer Kit S&B 82-1000 — L5P Duramax 17-19 Map Sensor Spacer Kit S&B 82-1000 $69.00
California Restricted

Fits: L5P Duramax 2017-2019

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Duramax Gear Reduction Starter Mean Green 6600 — Duramax Gear Reduction Starter Mean Green 6600 $419.00
Fits: Duramax 2001-2019

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LML|L5P Duramax High Output Alternator XDP XD350 — LML|L5P Duramax High Output Alternator XDP XD350 $632.95
Fits: LML|L5P Duramax 2011-2019

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Duramax 2001-2018 Balancer Bolt Kit ARP 129-2503 — Duramax 2001-2018 Balancer Bolt Kit ARP 129-2503 $30.42
Fits: Duramax 2001-2018

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L5P Duramax 17-19 Oil Drain Valve EZ EZ-107 — L5P Duramax 17-19 Oil Drain Valve EZ EZ-107 $27.71
Fits: L5P Duramax 2017-2019

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L5P Duramax Diesel Head Stud Kit ARP 230-4301 — L5P Duramax Diesel Head Stud Kit ARP 230-4301 $852.08
Fits: L5P Duramax 2017-2023

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L5P Duramax 17-20 3/8 Inch Street Performance Pushrods XDP XD387 — L5P Duramax 17-20 3/8 Inch Street Performance Pushrods XDP XD387 $349.95
Fits: L5P Duramax 2017-2020

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L5P Duramax Performance Diesel Damper Fluidampr 830151 — L5P Duramax Performance Diesel Damper Fluidampr 830151 $698.80
Fits: L5P Duramax 2020-2021

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L5P Duramax 17-19 Performance Diesel Damper Fluidampr 830141 — L5P Duramax 17-19 Performance Diesel Damper Fluidampr 830141 $574.82
Fits: L5P Duramax 2017-2019

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Silverado HD Clutch Master Cylinder Push Rod Bushing GM 12473050 — Silverado HD Clutch Master Cylinder Push Rod Bushing GM 12473050 $28.59
Fits: Chevrolet Silverado HD 1999-2013 & 2015-2018

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Duramax Oil Cooler Outlet Gasket - Drivers Side GM 12640849 — Duramax Oil Cooler Outlet Gasket - Drivers Side GM 12640849 $11.67
Fits: Duramax 2011-2022

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Duramax Oil Cooler Outlet Gasket - Passenger Side GM 12640850 — Duramax Oil Cooler Outlet Gasket - Passenger Side GM 12640850 $11.75
Fits: Duramax 2010-2020

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Duramax 07-20 Power Brake Booster Gasket AcDelco 22872387 — Sold Out
Duramax 07-20 Power Brake Booster Gasket AcDelco 22872387 $9.28
Fits: Duramax 2007-2020

L5P Duramax Thermostat Seal GM 98280281 — L5P Duramax Thermostat Seal GM 98280281 $9.92
Fits: L5P Duramax 2017+

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Duramax Billet Aluminum Oil Cap XDP XD477 — Duramax Billet Aluminum Oil Cap XDP XD477 $29.95
Fits: Duramax 2001-2021

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Battery Extender 12V 1.5A Auto Meter BEX-1500 — Battery Extender 12V 1.5A Auto Meter BEX-1500 $54.04
Fits: Universal - 12 Volts, 1.5 Amp

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Manual Control Positive Air Shutdown BD 1036733-M — Manual Control Positive Air Shutdown BD 1036733-M $723.95
Fits: Universal - 4 Inch Intake Systems

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Positive Air Shutdown With Electric Control BD 1036739 — Positive Air Shutdown With Electric Control BD 1036739 $996.95
California Restricted

Fits: Universal - 4 Inch Intake Systems

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Universal Carbon Fiber Oil Catch Can Mishimoto MMOCC-CF — Universal Carbon Fiber Oil Catch Can Mishimoto MMOCC-CF $162.95
California Restricted

Fits: Universal - Many Applications

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Universal High-Flow Baffled Catch Can Kit Mishimoto MMBCC-HF — Universal High-Flow Baffled Catch Can Kit Mishimoto MMBCC-HF $280.95
California Restricted

Fits: Universal - Many Applications

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L5P Duramax Cylinder Head Guide Pin GM 11548055 — L5P Duramax Cylinder Head Guide Pin GM 11548055 $8.45
Fits: L5P Duramax 2017-2020

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Duramax Catalytic Converter To DPF Gasket AcDelco 15126137 — Duramax Catalytic Converter To DPF Gasket AcDelco 15126137 $11.68
Fits: Duramax 2001-2005 | 2007.5-2022

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Duramax Starter Bolt GM 97329632 — Duramax Starter Bolt GM 97329632 $6.56
Fits: Duramax 2001-2018

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Duramax OE Crankshaft Balancer Bolt GM 97329601 — Duramax OE Crankshaft Balancer Bolt GM 97329601 $19.39
Fits: Duramax 2001-2022

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Duramax Rear Adapter Water Housing Cover Gasket GM 97229043 — Duramax Rear Adapter Water Housing Cover Gasket GM 97229043 $8.41
Fits: Duramax 2001-2022

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Duramax Camshaft Retainer Bolt Washer GM 97225125 — Duramax Camshaft Retainer Bolt Washer GM 97225125 $3.83
Fits: Duramax trucks 2001-2022

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L5P Duramax EGR Pipe Gasket GM 12680216 — L5P Duramax EGR Pipe Gasket GM 12680216 $7.40
Fits: L5P Duramax 2017-2022

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Duramax Engine Lower Valve Cover Dowel Pin GM 97014295 — Duramax Engine Lower Valve Cover Dowel Pin GM 97014295 $6.40
Fits: Duramax 2004.5-2020

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Duramax Crankshaft Balancer - Oil Pump Gear Pin GM 94048159 — Duramax Crankshaft Balancer - Oil Pump Gear Pin GM 94048159 $1.31
Fits: Duramax 2001-2019

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Duramax Coolant Block Drain Gasket GM 94034146 — Duramax Coolant Block Drain Gasket GM 94034146 $4.45
Fits: Duramax 2001-2018

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L5P Duramax Belt Tensioner AcDelco 12673657 — L5P Duramax Belt Tensioner AcDelco 12673657 $65.12
Fits: 2500HD 3500 Silverado | Sierra 2017-2022

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L5P Duramax Serpentine Belt Fits Dual Alternator AcDelco 12645694 — L5P Duramax Serpentine Belt Fits Dual Alternator AcDelco 12645694 $72.93
Fits: 2500HD/3500 Silverado | Sierra 2017-2019

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Duramax 17-21 Engine Oil Drain Plug Gasket AcDelco 12616850 — Duramax 17-21 Engine Oil Drain Plug Gasket AcDelco 12616850 $7.21
Fits: 2500HD/3500 Silverado | Sierra 2017-2021

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LML/L5P Duramax Front Wheel Bearing Bolt GM 11571025 — LML/L5P Duramax Front Wheel Bearing Bolt GM 11571025 $10.93
Fits: 2500HD/3500 Silverado | Sierra 2011-2019

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L5P Duramax Engine Oil Drain Plug AcDelco 11562588 — L5P Duramax Engine Oil Drain Plug AcDelco 11562588 $11.29
Fits: 2500HD/3500 Silverado | Sierra 2017-2019

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Duramax Engine Shield and Skid Plate Bolt GM 11518341 — Duramax Engine Shield and Skid Plate Bolt GM 11518341 $10.11
Fits: Duramax 2001-2020

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L5P Duramax Glow Plug AcDelco 65G — L5P Duramax Glow Plug AcDelco 65G $37.13
Fits: L5P Duramax 2019-2022

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LML/L5P Duramax Ambient Air Temperature Sensor AcDelco 13583411 — LML/L5P Duramax Ambient Air Temperature Sensor AcDelco 13583411 $13.51
Fits: 2500/3500HD Silverado | Sierra 2015-2022

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Duramax Front Main Seal AcDelco 97209341 — Duramax Front Main Seal AcDelco 97209341 $51.80
Fits: 2500/3500HD Silverado | Sierra 2001-2022

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L5P Duramax Injector Connector Pigtail GM 19368140 — L5P Duramax Injector Connector Pigtail GM 19368140 $111.29
Fits: L5P Duramax 2017-2021

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Duramax Transmission Case Locator Pin GM 97228317 — Duramax Transmission Case Locator Pin GM 97228317 $13.04
Fits: 2500/3500HD Silverado Sierra 2001-2022

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Duramax 01-19 Battery Retainer GM 84109393 — Duramax 01-19 Battery Retainer GM 84109393 $7.77
Fits: 2500/3500HD Silverado | Sierra 2001-2019

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Allison 1000 C3 C4 Piston Return Spring AcDelco 29546698 — Allison 1000 C3 C4 Piston Return Spring AcDelco 29546698 $13.00
Fits: Allison 5 & 6 Speed 2001-2019

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Duramax 06-19 Allison 1000 Transmission C2 Clutch Piston Inner Seal Allison 29542808 — Duramax 06-19 Allison 1000 Transmission C2 Clutch Piston Inner Seal Allison 29542808 $7.18
Fits: 2500HD/3500 Silverado | Sierra 2006-2019

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Duramax 06-19 NSBU (Neutral Start Back Up) Switch Allison 29542692 — Duramax 06-19 NSBU (Neutral Start Back Up) Switch Allison 29542692 $184.71
Fits: 2500/3500HD Silverado | Sierra 2006-2019

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Duramax 01-18 Multi-Purpose Retaining Ring AcDelco 29541534 — Duramax 01-18 Multi-Purpose Retaining Ring AcDelco 29541534 $8.10
Fits: 2500HD/3500 Silverado | Sierra 2001-2018

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Duramax 01-19 1000 Transmission C5 Clutch Piston Inner Seal Allison 29536859 — Duramax 01-19 1000 Transmission C5 Clutch Piston Inner Seal Allison 29536859 $14.49
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 — Duramax 01-19 Allison 1000 Power Take Off Cover Gasket AcDelco 29531325 $10.05
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Duramax Power Brake Booster Outlet Hose (Low Pressure) GM 84314755 — Duramax Power Brake Booster Outlet Hose (Low Pressure) GM 84314755 $64.55
Fits: Duramax 2011-2019

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Duramax 06-19 Allison 1000 Transmission C1 C2 Clutch Piston Outer Seal Allison 24269245 — Duramax 06-19 Allison 1000 Transmission C1 C2 Clutch Piston Outer Seal Allison 24269245 $10.26
Fits: Duramax 2006-2019

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Duramax 11-19 Power Steering Gear Inlet Hose GM 23251102 — Duramax 11-19 Power Steering Gear Inlet Hose GM 23251102 $49.49
Fits: Duramax 2011-2019

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Duramax 11-19 Front Drive Axle Inner Shaft Seal GM 23196678 — Duramax 11-19 Front Drive Axle Inner Shaft Seal GM 23196678 $95.11
Fits: Duramax 2011-2019

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L5P Duramax Replacement Fuel Injector Connector Pigtail Fleece FPE-HAR-L5P-INJ-PT — L5P Duramax Replacement Fuel Injector Connector Pigtail Fleece FPE-HAR-L5P-INJ-PT $59.99
Fits: L5P Duramax 2017-2022

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Electronic Control Positive Air Shutdown BD 1036733 — Electronic Control Positive Air Shutdown BD 1036733 $996.95
Fits: Universal - 4 Inch Intake Systems

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L5P Duramax Fan Extension Harness Fleece FPE-HAR-DMAX-FAN-L5P — L5P Duramax Fan Extension Harness Fleece FPE-HAR-DMAX-FAN-L5P $45.99
Fits: L5P Duramax 2500/3500 2017-2019

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Duramax 11-19 Rear Axle Drain / Fill Plug GM 92230583 — Duramax 11-19 Rear Axle Drain / Fill Plug GM 92230583 $13.20
Fits: Duramax 2011-2019

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Duramax 01-16 High Strength Bolt Kit Fluidampr 300010 — Duramax 01-16 High Strength Bolt Kit Fluidampr 300010 $88.43
Fits: Duramax 2001-2016

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Duramax 01-19 Transmission Internal Retaining Ring Allison 29536981 — Duramax 01-19 Transmission Internal Retaining Ring Allison 29536981 $35.23
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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Baffled Oil Catch Can Mishimoto MMBCC-UNI — Baffled Oil Catch Can Mishimoto MMBCC-UNI $349.95
California Restricted

Fits: Universal - Many Applications

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Large Aluminum Oil Catch Can Mishimoto MMOCC-LA — Large Aluminum Oil Catch Can Mishimoto MMOCC-LA $127.95
California Restricted

Fits: Universal - Many Applications

Select Options

LML|L5P Duramax Fuel Injector Connector Pigtail (8-Pack) Fleece FPE-HAR-L5P-INJ-PT-8P — LML|L5P Duramax Fuel Injector Connector Pigtail (8-Pack) Fleece FPE-HAR-L5P-INJ-PT-8P $299.99
Fits: LML|L5P Duramax 2011-2022

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LML|L5P Duramax Serpentine Belt GM 12656797 — LML|L5P Duramax Serpentine Belt GM 12656797 $72.40
Fits: LML|L5P Duramax 2015-2019

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LML|L|5P Duramax OE Smooth Idler Pulley GM 12611935 — LML|L|5P Duramax OE Smooth Idler Pulley GM 12611935 $79.55
Fits: LML|L5P Duramax 2013-2023

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L5P|L5D Duramax Turbocharger Installation Kit Alliant AP0203 — L5P|L5D Duramax Turbocharger Installation Kit Alliant AP0203 $202.20
Fits: L5P|L5D Duramax 2017-2023

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L5P Duramax Exhaust Manifold Stud GM 11549086 — L5P Duramax Exhaust Manifold Stud GM 11549086 $14.77
Fits: L5P Duramax 2017-2023

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L5P Duramax Exhaust Manifold Gasket GM 12705094 — L5P Duramax Exhaust Manifold Gasket GM 12705094 $43.47
Fits: L5P Duramax 2017-2024

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L5P Duramax Temp Sensor Pigtail GM 13576415 — L5P Duramax Temp Sensor Pigtail GM 13576415 $67.01
Fits: L5P Duramax 2017-2020

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L5P Duramax Glow Plug GM 12725202 — L5P Duramax Glow Plug GM 12725202 $40.31
Fits: L5P Duramax 2017-2023

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L5P Duramax Splice Wire Kit GM 13584448 — L5P Duramax Splice Wire Kit GM 13584448 $14.11
Fits: L5P Duramax 2017-2023

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L5P Duramax Fuel Pump Control Module GM 13565642 — Sold Out
L5P Duramax Fuel Pump Control Module GM 13565642 $109.27
Fits: L5P Duramax 2017-2023

L5P Duramax EGR Filter System FASS EGRC20 — L5P Duramax EGR Filter System FASS EGRC20 $1,577.89
Fits: L5P Duramax 2020-2025

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L5P Duramax EGR Filter System FASS EGRC17 — L5P Duramax EGR Filter System FASS EGRC17 $1,577.89
Fits: L5P Duramax 2017-2019

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L5P Duramax Fuel Injector Connector Pigtail (4-Pack) Fleece FPE-HAR-L5P-INJ-PT-4P — L5P Duramax Fuel Injector Connector Pigtail (4-Pack) Fleece FPE-HAR-L5P-INJ-PT-4P $179.99
Fits: L5P Duramax 2017-2024

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L5P Duramax Secondary MAP Sensor Spacer Fleece FPE-L5P-MAP-SPR-24 — L5P Duramax Secondary MAP Sensor Spacer Fleece FPE-L5P-MAP-SPR-24 $68.99
Fits: L5P Duramax 2024-2025

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L5P Duramax Freedom Cylinder Head (Passenger Side) Fleece FPE-61-10014-P — Sold Out
L5P Duramax Freedom Cylinder Head (Passenger Side) Fleece FPE-61-10014-P $1,099.00
Fits: L5P Duramax 2017-2023 (Passenger Side)

L5P Duramax Freedom Cylinder Head (Driver Side) Fleece FPE-61-10014-D — Sold Out
L5P Duramax Freedom Cylinder Head (Driver Side) Fleece FPE-61-10014-D $1,099.00
Fits: L5P Duramax 2017-2023 (Driiver Side)

L5P Duramax Head Bolt GM 11548837 — L5P Duramax Head Bolt GM 11548837 $2.56
Fits: L5P Duramax 2017-2024

Select Quantity

L5P Duramax Thermostat Housing Stud GM 11611144 — L5P Duramax Thermostat Housing Stud GM 11611144 $7.60
Fits: L5P Duramax 2017-2024

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Duramax All Lights On Module Fleece FPE-ALO — Duramax All Lights On Module Fleece FPE-ALO $21.95
Fits: LMM/LML/L5P Duramax 2007-2024

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2001-2023 Duramax Harmonic Balancer Washer ARP 200-8793 — 2001-2023 Duramax Harmonic Balancer Washer ARP 200-8793 $10.35
Fits: 2001-2023 Duramax

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L5P Duramax Connecting Rod Bolt Kit ARP 230-6302 — L5P Duramax Connecting Rod Bolt Kit ARP 230-6302 $278.40
Fits: L5P Duramax 2017-2024

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L5P Duramax Heavy Duty Head Stud Kit Gator Fasteners HSK66L5P — L5P Duramax Heavy Duty Head Stud Kit Gator Fasteners HSK66L5P $599.99
Fits: L5P Duramax 2017-2025

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L5P Duramax Lifter Set (16) with Camshaft DK Engines DK-GML5P-LIK-CAM — L5P Duramax Lifter Set (16) with Camshaft DK Engines DK-GML5P-LIK-CAM $463.41
Fits: L5P Duramax 2017-2025

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L5P Duramax New Cylinder Heads Loaded with Valve Train DK Engines DK-GML5P-CHL — L5P Duramax New Cylinder Heads Loaded with Valve Train DK Engines DK-GML5P-CHL $715.19
Fits: L5P Duramax 2017-2025

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L5P Duramax High Flow Intake Horn Fleece FPE-L5P-INTAKEHORN — L5P Duramax High Flow Intake Horn Fleece FPE-L5P-INTAKEHORN $169.99
Fits: L5P Duramax 2017-2019

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Duramax 1992-2000 Cylinder Head Bolt Set Mahle GS33193 — Duramax 1992-2000 Cylinder Head Bolt Set Mahle GS33193 $36.23
Fits: Duramax 1992-2000

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