2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Engine & Performance

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Crate Engines

Crate Engines

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Gaskets, Gasket Kits & Bearings

Gaskets

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Glow Plugs

Glow Plugs

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Head Studs & Main Studs

Head Studs & Main Studs

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Heads & Valve Train

Heads & Valve Train

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Motor Mounts

Motor Mounts

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Oil Pans

Oil Pans

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Radiators & Cooling Upgrades

Radiators & Cooling Upgrades

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Rebuild Kits & Internal Parts

Rebuild Kits & Internal Parts

2007.5-2010 GM 2500HD/3500HD 6.6L LMM Duramax Rods, Pistons, Cams & More

Rods/Pistons/Cams & More

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PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 168030160 Engine Mount Kit 60 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE168030160
$269.99
PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 168030140 Engine Mount Kit 40 Hardness | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE168030140
$269.99
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119030130 Polished 304 Stainless Steel Coolant Tube (pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE119030130
$197.99
$219.99
PPE 114052001 14mm Billet Hardened Stainless Steel Magnetic Drain Plug for OEM & PPE Engine Oil Pans | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 114052001 14mm Billet Hardened Stainless Steel Magnetic Drain Plug for OEM & PPE Engine Oil Pans | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114052001 14mm Billet Hardened Stainless Steel Magnetic Drain Plug for OEM & PPE Engine Oil Pans | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE114052001
$17.99
$19.99
PPE 114001050 Coolant Tube Kit for Internal Oil Cooler Removal | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 114001050 Coolant Tube Kit for Internal Oil Cooler Removal | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 114001050 Coolant Tube Kit for Internal Oil Cooler Removal | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114001050 Coolant Tube Kit for Internal Oil Cooler Removal | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE114001050
$179.99
$199.99
Merchant 10233 ARP Rocker Shaft Bolt Kit | 2001-2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10233 ARP Rocker Shaft Bolt Kit | 2001-2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10233 ARP Rocker Shaft Bolt Kit | 2001-2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10233
$24.72
Mahle SH1999S SH-1999S Cam Shaft Bearing Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Mahle SH1999S SH-1999S Cam Shaft Bearing Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mahle

Mahle SH1999S SH-1999S Cam Shaft Bearing Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MCISH1999S
$80
Edge 98654 EAS Shift On The Fly Accessory | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Edge 98654 EAS Shift On The Fly Accessory | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Edge Products

Edge 98654 EAS Shift On The Fly Accessory | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: EDG98654
$249.95
$281.95
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications

Edge Products

Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications

SKU: EDG85300
$429.95
$575.95
Mahle 930036055 De-Lipped Cast Piston Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Mahle 930036055 De-Lipped Cast Piston Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mahle

Mahle 930036055 De-Lipped Cast Piston Set | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MLE930036055
$1,733.96
$1,884.74
Tuner 1101A021 DSP5 Switch | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Tuner 1101A021 DSP5 Switch | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Duramax Tuner

Tuner 1101A021 DSP5 Switch | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: DMT1101A021
$40
Merchant 10251 Automotive Glow Plug Nuts (Set of 8) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10251 Automotive Glow Plug Nuts (Set of 8) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10251 Automotive Glow Plug Nuts (Set of 8) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10251
$4.72
PPE 119022200 Blue Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 119022200 Blue Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119022200 Blue Upper & Lower Coolant Hose Kit | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE119022200
$269.99
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal
IN STOCK
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal

PPE

PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal

SKU: PPE228052159
$35.99
$39.99
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
IN STOCK
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Fleece Performance Products

Fleece FPE-DMAX-OCADPT Duramax Oil Cooler Adapter | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: FLCFPE-DMAX-OCADPT
$99
$103.95
Merchant 13939 Valve Guide Seal | 2001-2010 GM 2500HD/3500HD 6.6L Duramax
Merchant 13939 Valve Guide Seal | 2001-2010 GM 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 13939 Valve Guide Seal | 2001-2010 GM 2500HD/3500HD 6.6L Duramax

SKU: MAT13939
$1.39
Wagler C6641 Billet Main Caps | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wagler C6641 Billet Main Caps | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wagler Competition Products

Wagler C6641 Billet Main Caps | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCPC6641
$750
Mahle 54598 1.05mm Thick Wave Stopper Head Gasket (Right) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Mahle 54598 1.05mm Thick Wave Stopper Head Gasket (Right) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mahle

Mahle 54598 1.05mm Thick Wave Stopper Head Gasket (Right) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MCI54598
$183.51
PPE 114002000 Stainless Steel Remote Oil Filter Mount Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 114002000 Stainless Steel Remote Oil Filter Mount Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114002000 Stainless Steel Remote Oil Filter Mount Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE114002000
$125.99
Fleece FPE-HAR-DMAX-CPS-0416 Crankshaft Position Sensor Pigtail | 2004-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Fleece FPE-HAR-DMAX-CPS-0416 Crankshaft Position Sensor Pigtail | 2004-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-HAR-DMAX-CPS-0416 Crankshaft Position Sensor Pigtail | 2004-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-HAR-DMAX-CPS-0416 Crankshaft Position Sensor Pigtail | 2004-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-HAR-DMAX-CPS-0416 Crankshaft Position Sensor Pigtail | 2004-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-HAR-DMAX-CPS-0416
$21.99
Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100442 Billet Oil Fill Tube Cap - Clear Anodized | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100442
$51.41
PPE 114001000 Internal Oil Cooler Removal Kit | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 114001000 Internal Oil Cooler Removal Kit | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114001000 Internal Oil Cooler Removal Kit | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE114001000
$269.99
PPE 113061064 Dual Fueler Idler Pulley 4 inch Diameter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 113061064 Dual Fueler Idler Pulley 4 inch Diameter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 113061064 Dual Fueler Idler Pulley 4 inch Diameter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 113061064 Dual Fueler Idler Pulley 4 inch Diameter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE113061064
$31.49
Merchant 98045060 Grade C Left Side Head Gasket | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 98045060 Grade C Left Side Head Gasket | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 98045060 Grade C Left Side Head Gasket | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT98045060
$99.72

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DIESEL TRUCK EXPERTS STANDING BY

The GM 2500/3500's equipped with a 6.6L Duramax LMM under the hood already come with tons of horsepower and torque off the factory line, but additional power and performance has never hurt any truck. Here at Alligator Performance, we offer a ton of engine parts and upgrades that are designed specifically to give your 6.6L Duramax engine improved throttle response, power and performance, taking your GM 2500/3500 truck to the next level in every situation. Check out our selection of cold air intakes, tuners, fuel upgrades, and turbo upgrades to help you get the most out of your diesel engine. Many of these upgrades like the cold air intakes and fuel upgrades even help promote component longevity so you can enjoy long-lasting and consistent performance without compromise. After you've added a few engine upgrades to your custom build, be sure to check out our premium 2007.5-2010 GM 6.6L Duramax LMM Transmission Upgrades to compliment the increase in power you're throwing down! GM Duramax Fitments: 2007, 2008, 2009, 2010 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2007.5-2010 6.6L LMM
Tuners & Monitors
Cooling Upgrades
Head Studs & Main Studs
Rods, Pistons & Cams
Heads & Valve Train

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