Maintains lock-up when the exhaust brake is activated
Ensuring 100% of the retarding force is being transferred in 3rd and 4th gears
Prevents slippage and subsequent high oil temperatures
Is your torque converter locked up when the exhaust brake is applied? If not, you’re only benefiting from a fraction of its retarding power! Automatically maximize your exhaust brake’s retarding power with BD Diesel Auto/Pressure Loc systems! These Auto/Pressure Loc systems command your torque converter to lock up, and stay that way, whenever the exhaust brake is applied in third and fourth gears. Transmission oil temperature stays low since there’s no clutch slippage, and engine braking is easier. With BD Diesel Auto/Pressure Loc systems installed, the lock-up clutch and exhaust brake automatically disengage at low speeds, preventing stalling and transmission/converter damage. These systems also increase fluid pressures to help prevent slippage and maintain positive clutch contact.