Pacific Performance PPE Automatic Transmission Fluid Thermal Bypass Valve for 2014-2018 GM 6L80 (Black)

Smart protection for GM 6L80 transmissions

Meet the PPE Automatic Transmission Fluid Thermal Bypass Valve from Pacific Performance Engineering. Designed for 2014–2018 GM trucks and SUVs with the 6L80 6-speed transmission, this billet aluminum valve adds a thoughtful layer of protection by offering a less-restrictive path for transmission fluid to travel to and from the cooler. While no component can guarantee results, the design aims to help maintain cooler operating temperatures during heavy use, such as towing, stop-and-go urban driving, and hot-weather conditions. The part number 125068000 helps identify compatibility with OEM lines and hardware.

Durability is built in. The valve is machined from billet aluminum for rigidity and stable performance under heat and vibration. It is a direct-fit replacement that connects with OEM transmission lines, making installation approachable for a skilled DIYer or a professional shop. A standout feature is the service plug with a Neodymium magnet and O-ring seal. The magnet captures ferrous debris, while the removable plug allows you to inspect and remove particles during routine maintenance, helping you keep the system clean over time.

Two practical use-cases fit everyday needs: improving the efficiency of the cooling loop under load and simplifying debris management. In real-world driving, you may notice more consistent temperatures during long climbs or repeated starts and stops. The design preserves the original connection points and maintains a straightforward install on the 6L80 platform, providing a practical upgrade without altering factory lines.

What’s included and who may benefit: a robust, direct-fit retrofit designed for GM 2014–2018 models with the 6L80 transmission. The billet aluminum construction ensures durability, and the magnet-equipped service plug adds a proactive maintenance touch. If you regularly tow, commute in traffic-heavy conditions, or operate in hot climates, this valve offers a potential improvement path—recognizing that results can vary by vehicle and driving style.

• Maximizes fluid flow to and from the transmission cooler; billet aluminum construction; direct-fit with OEM 6L80 lines; service plug with Neodymium magnet and O-ring seal
• Compatible with 2014–2018 GM Tahoe, Silverado, Sierra 1500, Escalade, Yukon; engines include 5.3L, 6.2L, and 4.3L

• Direct-fit hardware ensures straightforward installation on the 6L80 automatic
• Removable magnet-equipped plug traps debris for easier maintenance
• Part code 125068000 for reference and compatibility