Sale
Wehrli 17-19 Chevrolet 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Gloss White
WCFWCF100433-GW
Coolant Reservoirs
The WCFab 2017-2019 L5P Duramax 2500 / 3500 & 2019+ L5D Duramax 4500 / 5500 / 6500 Fabricated Aluminum Coolant Tank Kit, mounts in...
Sale
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - Gloss White
WCFWCF100742-GW
Radiator Hoses
Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! Replaces the...
Sale
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - WCFab Red
WCFWCF100742-RED
Radiator Hoses
Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! Replaces the...
Sale
Wehrli 17-19 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug
WCFWCF100469
Thermostat Housings
As a direct replacement for the failure prone OEM thermostat, the Transmission Cooler Thermostat Bypass Plug can drop fluid temperature from 15-50 degrees F...
Sale
Wehrli 2020-2024 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - Gloss White
WCFWCF100541-GW
Radiator Hoses
Upper Coolant Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 truck replaces the ugly OEM rubber upper...
Sale
Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting
WCF100155
Coolant Reservoirs
Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting
Sale
Wehrli GM Billet Heater Core Fitting Kit w/ Hose
WCFWCF100699
Coolant Reservoirs
High quality preformed universal 1/2" heater hose assembly with billet aluminum quick-connect fitting replaces the leak prone OEM fitting. Servicable O-ring seals inside of...