2019-2024 Ram 2500/3500 (68RFE & AS69RC Transmission) Transmission Thermal Bypass

RevMax 68RFE ZeroStat Transmission Cooler Thermostatic Bypass (2019+)

Description:

The RevMax ZeroStat Bypass is a fully re-engineered billet aluminum cooler bypass designed to eliminate the factory restriction and failure-prone thermostat found on 2019+ 68RFE-equipped Rams.

• Removes all internal restrictions for 100% cooler flow at all times

• Built from 6061 billet aluminum for strength and durability

• Dramatically lowers transmission temperatures

• Helps prevent bypass valve failure that leads to overheating

• Ideal for high-performance, towing, and tuned applications

Note: Offers the highest unrestricted flow on the market—87% more flow than stock

ATS Thermal Bypass Solution Kit (68RFE & Aisin AS69RC)

Description:

The ATS Thermal Bypass Solution Kit is engineered to eliminate the factory 68RFE and Aisin AS69RC transmission cooler thermostat, which is known for causing overheating and long-term transmission damage.

• Eliminates the factory thermostat for full-time cooler flow

• Made from billet aluminum for maximum durability and heat resistance

• Dramatically reduces transmission temperature under load

• Ideal for towing, performance driving, and any tuned Cummins or HEMI application

BD Diesel Transmission Thermal Bypass Solution Kit

Description:

The BD Diesel Thermal Bypass Solution Kit replaces the factory transmission cooler thermostat in 68RFE and Aisin-equipped Ram trucks, ensuring full cooler flow at all times.

• Replaces the OEM thermostat for unrestricted, full-time cooler flow

• Machined from billet aluminum for strength and longevity

• Significantly lowers operating temperatures under heavy load

• Designed for towing and high-performance use cases