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Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: WCF100469
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$59.17
2017 - 2019 Chevy Silverado 2500
2017 - 2019 Chevy Silverado 3500
2017 - 2019 GMC Sierra 2500
2017 - 2019 GMC Sierra 3500
Product Name: WC Fab Transmission Cooler Thermostat Bypass Plug - 2017-2019 GM Duramax L5P Manufacturer: WC Fab Manufacturer Part #: WCF100469 Thoroughbred Diesel Part #: WCF100469 Fitment Notes: 2017-2019 GM Duramax L5P
2017-2019 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug, The stock thermostatic bypass for warming up the Allison quickly in cold weather conditions is a good idea in principle, but in practice we've seen the valve fail forcing trans fluid around the cooler in warm weather conditions that cause dangerous fluid temperatures for built and stock transmissions alike. We've been running this design on our shop development trucks and with our built transmissions successfully and are now making them available for purchase separately due to popular demand. Recommended for trucks with stock or built transmissions and performing heavy towing in warm climates to help keep fluid temperatures in check.
Note (Current WC Fab Lead Times):
Features:
17-19 Duramax L5P. you would need to check with your service provider about warranty.
No, designed for the Allison transmission.