Description
Add another level of protection to your transmission with the PPE Transmission Fluid Thermal Bypass Valve, part number 125069000, designed for 2020–2026 GM trucks and SUVs equipped with the 3.0L LM2 / LZ0 Duramax diesel and 10L80 10-speed automatic transmission.
The factory thermal bypass valve contains restrictive internal passages and can fail in the closed position due to debris or mechanical failure. When that happens, transmission fluid may not reach the cooler, which can lead to dangerously high transmission temperatures and reduced transmission life.
The PPE bypass valve replaces the restrictive factory unit with a billet aluminum direct-fit upgrade that maximizes fluid flow to and from the transmission cooler for improved cooling efficiency and long-term reliability.
Features & Benefits:
– Maximizes fluid flow to and from the transmission cooler
– Billet aluminum construction
– Direct fit for OEM 10L80 transmission and fluid lines
– Helps improve transmission cooling capacity
– Reduces risk of overheating from factory valve restriction
– Service plug with Neodymium magnet and O-ring seal
– Removable plug helps capture and inspect ferrous debris
Part Information:
PPE Part Number: 125069000
GTIN: 840171221060
OEM Reference: 84518145
Why Upgrade the Thermal Bypass Valve?
– The factory valve can restrict transmission fluid flow, especially if it begins to fail. This can cause:
– Elevated transmission temperatures
– Poor cooler flow
– Reduced transmission life
– Increased wear under towing or stop-and-go driving
– The PPE valve helps eliminate this restriction and improves cooling system performance.
Vehicle Fitment:
2020–2026 Chevrolet Silverado 1500 3.0L Duramax LM2 / LZ0
2020–2026 GMC Sierra 1500 3.0L Duramax LM2 / LZ0
2021–2026 Chevrolet Tahoe / Suburban 3.0L Duramax LM2 / LZ0
2021–2026 GMC Yukon 3.0L Duramax LM2 / LZ0
2020–2026 Cadillac Escalade 3.0L Duramax LM2 / LZ0
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