The S4005001030 is a complete Enhanced Easy-Stop™ Trailer ABS ECU and Modulator Valve Assembly designed for 2S/2M, 4S/2M, and 4S/3M Premium trailer braking configurations. It combines the ECU and single or dual modulator valve in a pre-assembled unit for simplified installation and reliable ABS control. Engineered for trailers built after March 1, 2001, it ensures consistent braking stability across vocational and long-haul applications. Remanufactured and service-exchange versions are available, making it a flexible solution for both OEM and aftermarket requirements.
