Product Description
Upgrade your transmission reliability with the TransGo 6L80-CLR-BYPASS Cooler Flow Bypass Delete Kit, specifically engineered for the 2017-2019 GM 6.6L Duramax L5P platform. This high-performance upgrade eliminates the factory thermal bypass valve that restricts fluid flow, ensuring consistent cooler circulation, reduced transmission temperatures, and extended transmission life.
WHY UPGRADE TO THE TRANSGO 6L80-CLR-BYPASS KIT?
- Eliminates factory thermal bypass valve restrictions
- Maintains constant transmission fluid flow through the cooler
- Reduces operating temperatures under load and towing conditions
- Prevents premature transmission wear and failure
- Ideal for towing, performance builds, and heavy-duty applications
- Engineered for durability and long-term reliability
FITMENT
- 2017 GM Silverado 2500HD / 3500HD – 6.6L Duramax L5P
- 2018 GM Silverado 2500HD / 3500HD – 6.6L Duramax L5P
- 2019 GM Silverado 2500HD / 3500HD – 6.6L Duramax L5P
- 2017-2019 GMC Sierra 2500HD / 3500HD – 6.6L Duramax L5P
- Equipped with 6L80 / Allison transmission platform
WHAT THIS KIT DOES
The factory thermal bypass valve limits transmission fluid flow until certain temperatures are reached. Under heavy load, towing, or performance driving, this restriction can lead to excessive heat buildup. The TransGo bypass delete kit removes this restriction, allowing full-time cooler flow to maximize cooling efficiency and protect internal components.
SPECIFICATIONS
| Specification | Details |
|---|---|
| Part Number | 6L80-CLR-BYPASS |
| UPC | N/A |
| GTIN | N/A |
| Shipping | Calculated at checkout |
| Material | High-strength billet and OEM-grade components |
| Prop 65 | Yes – www.P65Warnings.ca.gov |
FAQ
What does the cooler bypass delete kit do?
It removes the factory thermal bypass valve, allowing constant transmission fluid flow through the cooler to improve cooling efficiency and reduce heat.
Is this necessary for stock trucks?
Yes, especially if you tow or drive under load. Even stock trucks benefit from improved cooling and increased transmission longevity.
Will this help prevent transmission failure?
By reducing heat—the #1 cause of transmission failure—this kit significantly improves durability and lifespan.
Is installation difficult?
Installation is straightforward for experienced installers or shops. Basic mechanical knowledge is recommended.
Is this a performance upgrade?
Yes. While it doesn’t add horsepower, it improves reliability and allows your transmission to handle increased power and towing demands.
