2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Engine & Performance

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Edge 98608 EAS Temperature Sensor | Universal
Edge 98608 EAS Temperature Sensor | Universal

Edge Products

Edge 98608 EAS Temperature Sensor | Universal

SKU: EDG98608
Price
$77.65
Edge 20202-3 EZ Performance Module with Insight CTS3 | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Edge 20202-3 EZ Performance Module with Insight CTS3 | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Edge Products

Edge 20202-3 EZ Performance Module with Insight CTS3 | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: EDG20202-3
Price
$1,024.95
Edge 20202 EZ Performance Module | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Edge 20202 EZ Performance Module | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Edge Products

Edge 20202 EZ Performance Module | 2024-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: EDG20202
Price
$562.95
Edge 98004 2-1/16" inch Gauge Pillar Adapter | Universal
Edge 98004 2-1/16" inch Gauge Pillar Adapter | Universal

Edge Products

Edge 98004 2-1/16" inch Gauge Pillar Adapter | Universal

SKU: EDG98004
Price
$46.05
PPE 119100100 Fan Clutch Delete Nut | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119100100 Fan Clutch Delete Nut | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119100100 Fan Clutch Delete Nut | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE119100100
Sale price
$44.99
Regular price
$49.99
PPE 115672023 MAP Sensor Relocation Block (Lower) | 2023-2026 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 115672023 MAP Sensor Relocation Block (Lower) | 2023-2026 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

PPE

PPE 115672023 MAP Sensor Relocation Block (Lower) | 2023-2026 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: PPE115672023
Sale price
$49.99
Regular price
$55.54
Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-DMAX-CBOP
Sale price
$55
Regular price
$58.79
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
Sale price
$35.99
Regular price
$39.99
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
Sale price
$197.99
Regular price
$219.99
EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal
EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal

EFI Live

EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal

SKU: EFILIC-FS2-VIN
Sale price
$125
Regular price
$129.99
BD Diesel 1057932 TS Booster V3.0 Throttle Sensitivity Booster | Universal
BD Diesel 1057932 TS Booster V3.0 Throttle Sensitivity Booster | Universal

BD Diesel

BD Diesel 1057932 TS Booster V3.0 Throttle Sensitivity Booster | Universal

SKU: BDD1057932
Price
$295.95
Edge 98611 EAS Expandable Probe | Universal
Edge 98611 EAS Expandable Probe | Universal

Edge Products

Edge 98611 EAS Expandable Probe | Universal

SKU: EDG98611
Price
$181.95
Edge 98605 5 Volt EAS Sensor Input | Universal
Edge 98605 5 Volt EAS Sensor Input | Universal

Edge Products

Edge 98605 5 Volt EAS Sensor Input | Universal

SKU: EDG98605
Price
$245.95
Wehrli 100699 Billet Heater Core Fitting with Hose | Universal
Wehrli 100699 Billet Heater Core Fitting with Hose | Universal

Wehrli Custom Fab

Wehrli 100699 Billet Heater Core Fitting with Hose | Universal

SKU: WCF100699
Price
$75.66
Edge 85400-261 Evolution CTS3 with Locksmith Device | 2020-2023 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax L5P
Edge 85400-261 Evolution CTS3 with Locksmith Device | 2020-2023 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax L5P

Edge Products

Edge 85400-261 Evolution CTS3 with Locksmith Device | 2020-2023 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax L5P

SKU: EDG85400-261
Price
$1,075.95
Wehrli 100541 Upper Coolant Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100541 Upper Coolant Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100541 Upper Coolant Pipe Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100541-GB
Price
From $169.75
Wehrli 100268 L5P OEM Placement Coolant Tank Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100268 L5P OEM Placement Coolant Tank Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100268 L5P OEM Placement Coolant Tank Kit | 2020-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100268-GB
Price
From $523.80
Fluidampr 830151 Performance Damper | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Fluidampr 830151 Performance Damper | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Fluidampr

Fluidampr 830151 Performance Damper | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: FLU830151
Sale price
$698.80
Regular price
$806
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
Price
$51.41
Edge 98616 EAS Control Kit | Universal
Edge 98616 EAS Control Kit | Universal

Edge Products

Edge 98616 EAS Control Kit | Universal

SKU: EDG98616
Price
$423.95
Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal
Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal

Edge Products

Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal

SKU: EDG98602
Price
$74.89
Edge 98005 CTS2 Pod Adapter | Universal
Edge 98005 CTS2 Pod Adapter | Universal

Edge Products

Edge 98005 CTS2 Pod Adapter | Universal

SKU: EDG98005
Price
$29.60
PPE 114053100 Heavy Duty Deep-Capacity Raw Aluminum Engine Oil Pan | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 114053100 Heavy Duty Deep-Capacity Raw Aluminum Engine Oil Pan | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 114053100 Heavy Duty Deep-Capacity Raw Aluminum Engine Oil Pan | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE114053100
Sale price
$359.99
Regular price
$399.99
Edge 22401 V3 Pulsar Programmer | 2020-2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Edge 22401 V3 Pulsar Programmer | 2020-2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Edge Products

Edge 22401 V3 Pulsar Programmer | 2020-2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: EDG22401
Price
$1,126.95

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DIESEL TRUCK EXPERTS STANDING BY

More horsepower and torque is never a bad thing, and your 2020-2025 GM 6.6L Duramax L5P can easily achieve improved power, throttle response, and overall performance with a few aftermarket engine upgrades from Alligator Performance. We carry a wide range of parts including Tuners, Cooling Upgrades, Crate Engines, Gaskets, Engine Accessories and more, all designed to help you get the most out of your custom GM 2500HD/3500HD build. Some of these upgrades even help extend engine life for long-lasting durability, all while ensuring your truck can handle the amount of power being thrown down. And don't forget to check out our selection of 6.6L Duramax Transmission Upgrades and Exhaust Upgrades to ensure your truck is ready for any challenge you throw its way. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 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. 

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