2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Radiators & Cooling Upgrades

When pushed to their limit, the 2017-2019 6.6L Duramax L5P's can run a bit hot which causes further issues and unnecessary hassles down the road. These premium 2017-2019 GM Sierra/Silverado 2500/3500 cooling options were specifically engineered to keep engine temps under control and operating at peak performance even during the harshest applications. Choose from our selection of performance radiators or pick up a deep engine oil pan to help dissipate heat faster over stock, allowing your truck to outperform and outlast the competition. GM Duramax Fitments: 2017, 2018, 2019 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>2017-2019 6.6L L5P
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Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-DMAX-CBOP Billet Coolant Block Off Plate | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-DMAX-CBOP
Price
$55
Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100155 Billet Coolant Heater Core Firewall Fitting | 1999-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100155
Sale price
$39.77
Regular price
$41
PPE 119020092 2" inch OEM Coolant Hose Drain 1/4 inch Bung | Universal
PPE 119020092 2" inch OEM Coolant Hose Drain 1/4 inch Bung | Universal

PPE

PPE 119020092 2" inch OEM Coolant Hose Drain 1/4 inch Bung | Universal

SKU: PPE119020092
Sale price
$26.99
Regular price
$29.99
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
Fleece FPE-HAR-MU-PT-7 MAP Sensor and Airbox Control Valve Pigtail | 2017-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P & 2013-2018 Dodge 6.7L Cummins
Fleece FPE-HAR-MU-PT-7 MAP Sensor and Airbox Control Valve Pigtail | 2017-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P & 2013-2018 Dodge 6.7L Cummins

Fleece Performance Products

Fleece FPE-HAR-MU-PT-7 MAP Sensor and Airbox Control Valve Pigtail | 2017-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P & 2013-2018 Dodge 6.7L Cummins

SKU: FLCFPE-HAR-MU-PT-7
Sale price
$28.99
Regular price
$38.99
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
Sale price
$73.72
Regular price
$76
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal

Mishimoto

Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal

SKU: MIMMMOC-F
Sale price
$199.95
Regular price
$209.95
PPE 518001000 Weld-On Billet Radiator Neck | Universal
PPE 518001000 Weld-On Billet Radiator Neck | Universal

PPE

PPE 518001000 Weld-On Billet Radiator Neck | Universal

SKU: PPE518001000
Price
$22.49
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
PPE 119030100 Raw 304 Stainless Steel Coolant Tube (Pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 119030100 Raw 304 Stainless Steel Coolant Tube (Pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 119030100 Raw 304 Stainless Steel Coolant Tube (Pump to oil cooler) | 2001-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE119030100
Sale price
$197.99
Regular price
$219.99
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100742 Upper Coolant Pipe Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100742-GB
Price
From $151.32
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Wehrli Custom Fab

Wehrli 100433 OEM Placement Coolant Tank Kit | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: WCF100433-GB
Price
From $479.18

2017-2019 6.6L Silverado & Sierra 2500HD/3500HD

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