Thermal Bypass Valve for 2013–2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB

Description

The Thermal Bypass Valve is a precision-engineered replacement for the factory thermal bypass valve, eliminating the common issues of leaks and sticking. By ensuring that transmission fluid always circulates through the cooler, it significantly improves cooling efficiency, reduces the risk of overheating, and extends transmission life. CNC-machined from billet aluminum, this upgrade is both durable and corrosion-resistant—ideal for trucks that demand reliability under heavy load, long hauls, or high-temperature conditions.

Fitments

• 2013–2024 Dodge Ram 2500 / 3500 6.7L Diesel with 68RFE and Aisin AS69RC transmissions

Key Features

• Fixes OEM Weak Points: Eliminates leaks and sticking found in the factory thermal bypass valve.

• Enhanced Cooling Efficiency: Ensures transmission fluid always flows through the cooler, reducing the risk of overheating.

• Extended Transmission Life: Better temperature control helps prevent heat-related wear and failures.

• Durable Construction: CNC-machined from billet aluminum for strength and corrosion resistance.

• Quick & Easy Installation: Installs in about 10 minutes with basic hand tools, no special equipment required.

Specifications

Q: What problem does this bypass valve solve?
A: It eliminates the common leak and sticking issues found in the OEM thermal bypass valve, ensuring consistent transmission fluid flow through the cooler.

Q: How does this improve transmission performance?
A: By guaranteeing that fluid always passes through the cooler, it helps regulate temperatures, prevents overheating, and prolongs transmission life.

Q: Is installation difficult?
A: No. Installation typically takes about 10 minutes and requires only basic hand tools.

Q: Will I lose transmission fluid during installation?
A: Yes, a small amount of fluid may be lost. It is important to top off the transmission with the correct type and amount of fluid after installation.

Q: Does this affect cold-start performance?
A: Yes. Since the bypass function is removed, fluid flows through the cooler even during cold starts. This may cause slower warm-up times and slightly affect shifting in extremely cold climates.

Q: Is this upgrade necessary if my truck is stock?
A: Yes, even stock trucks can benefit. Preventing bypass valve failures improves reliability, especially under heavy towing or hot weather.

Q: Will this fit both 68RFE and Aisin transmissions?
A: Yes, it is compatible with both the 68RFE and Aisin AS69RC used in Dodge Ram diesel trucks.

Q: What material is this valve made of?
A: It is CNC-machined from billet aluminum, offering superior durability and resistance to corrosion compared to OEM parts.

Q: Can this part improve transmission lifespan?
A: Yes. Keeping fluid temperatures lower reduces heat-related wear, helping extend the service life of the transmission.

Q: Is this a permanent fix?
A: Yes. Once installed, this billet bypass valve will not suffer from the leaks or sticking issues common with OEM units.