Upgrade the cooling efficiency of your GMC Sierra 1500 with the Wehrli Billet Anodized Transmission Cooler Thermostat Bypass Plug. Manufactured for the 2014-2018 models, this black anodized plug serves as a direct replacement for the unreliable OEM thermostat, promising enhanced reliability and performance.

The Transmission Cooler Thermostat Bypass Plug is specially crafted to keep your truck’s transmission fluid temperatures in check, especially during rigorous towing tasks or warm conditions. By minimizing fluid flow restriction to the transmission cooler, it lowers fluid temperatures by 15-50 degrees Fahrenheit. This feature is crucial for vehicles with stock or built transmissions, which are prone to overheating. Our plug is easy to install and designed to work seamlessly with factory-equipped cooler systems found in an array of GM vehicles, including 2014-2018 GMC Sierra 1500, 2017-2019 GMC Sierra 2500HD/3500HD, and more.

Features

• Direct replacement for failure-prone OEM thermostat
• CNC Machined Billet Aluminum construction
• Reduces fluid flow restriction to the trans cooler
• High-temperature silicone O-ring seals
• Black Anodized Finish
• Easy swap back to OEM setup for cold weather use

Whether you're an avid automotive enthusiast or someone looking to improve the functionality and reliability of your GMC Sierra 1500, the Wehrli Billet Anodized Bypass Plug is an ideal choice. If you have any questions or need further assistance, feel free to contact us at 512-982-9393 for our Austin, TX location or 562-981-6800 for our Los Angeles, CA location. We're here to assist with installations and customizations, and if you're considering multiple purchases, reach out to us about potential shipping discounts. Don't forget, professional installation is available on-site at both our locations.

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