Lithops Transmission Thermal Bypass Valve GM 6L80 6-Speed – Heavy-Duty Cooling for Towing (2014–2018 Silverado/Sierra/Tahoe/Yukon/Escalade)

Lithops Transmission Thermal Bypass Valve for GM 6L80 6-Speed

Designed for tough duty in trucks and SUVs that frequently tow or haul, the Lithops bypass valve keeps the ATF cooling loop flowing even under sustained load. When installed on vehicles with the 6L80 6-speed, it helps maintain steadier operating temperatures and supports more predictable transmission behavior during long pulls or hot weather driving.

Built for tough jobs

Whether you are towing a boat, hauling a travel trailer, or working on a crowded job site, this valve is built to withstand heat, vibration, and constant use. The precision machined aluminum housing resists thermal expansion and preserves a reliable seal under pressure, helping the system perform under demanding conditions.

• Continuous ATF flow through the cooler helps manage temperatures during high load driving
• Durable high temperature aluminum construction stands up to extended ATF exposure
• Designed specifically for GM 6L80 6-speed transmissions used in 2014–2018 models

Why it may matter for towing and hauling

• Potentially more stable transmission temperatures when towing or hauling over long distances
• Reduced risk of heat related wear during lengthy climbs or hot climate drives
• Faster recovery after sustained high load situations, such as highway pulls or hill climbs

Note that this part is compatible with GM 6L80 6-speed transmissions and is not intended for 8-speed units or other configurations. Before ordering, verify that your vehicle uses the correct 6-speed transmission and that the cooling system can accommodate a bypass valve installation.

Support you can count on

Lithops offers dedicated customer support to answer compatibility questions and assist with installation concerns. Our team is available to provide guidance before and after your purchase, helping you tow with more confidence and peace of mind.

What to expect during installation

Expect a straightforward integration for vehicles equipped with the GM 6L80 6-speed transmission. While the valve is designed for a clean fit within the cooling loop, professional installation is recommended to ensure correct routing and a proper seal for long term reliability.