Mishimoto MMTC-L5P-TBVFF 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Enhance the performance and reliability of your GMC 6.6L Duramax L5P with the Mishimoto Transmission Thermal Bypass Valve Kit. Specifically engineered for 2017 and newer models, this kit is designed to optimize your transmission's cooling efficiency by redirecting fluid through the cooler at all operating temperatures. By eliminating the factory bypass, this kit ensures that your transmission fluid is always at the optimal temperature, leading to improved performance and extended transmission life.

The Mishimoto MMTC-L5P-TBVFF features a durable construction with high-quality materials that ensure long-lasting performance even in the most demanding conditions. The kit includes all necessary components for a straightforward installation, making it a perfect upgrade for any enthusiast or professional looking to maintain their vehicle's peak performance. With the Mishimoto Lifetime Warranty, you can trust that this kit will provide reliable service for years to come.

Fitment Information

This kit is designed to fit the following vehicles:

• 2017 GMC Sierra 2500HD 6.6L Duramax L5P
• 2018 GMC Sierra 2500HD 6.6L Duramax L5P
• 2019 GMC Sierra 2500HD 6.6L Duramax L5P
• 2020 GMC Sierra 2500HD 6.6L Duramax L5P
• 2021 GMC Sierra 2500HD 6.6L Duramax L5P
• 2022 GMC Sierra 2500HD 6.6L Duramax L5P
• 2023 GMC Sierra 2500HD 6.6L Duramax L5P
• 2017 GMC Sierra 3500HD 6.6L Duramax L5P
• 2018 GMC Sierra 3500HD 6.6L Duramax L5P
• 2019 GMC Sierra 3500HD 6.6L Duramax L5P
• 2020 GMC Sierra 3500HD 6.6L Duramax L5P
• 2021 GMC Sierra 3500HD 6.6L Duramax L5P
• 2022 GMC Sierra 3500HD 6.6L Duramax L5P
• 2023 GMC Sierra 3500HD 6.6L Duramax L5P

Upgrade your GMC Duramax L5P's transmission cooling system with the Mishimoto MMTC-L5P-TBVFF Transmission Thermal Bypass Valve Kit and experience improved performance, reliability, and peace of mind.