OEM Part Number: 4005001040 Application Information: Replacement for Meritor Wabco ABS Trailer Valve 4005001040 Replacement for Meritor Wabco ABS ECU/Valve Assembly for Trailer Dollies # 4005001040. Recommended for use with turntables, steerables and dollies.   Used on trailers produced after March 1, 2001. Complete Enhanced Easy-Stop Assembly consists of an ECU, single or dual modulator valve and, for the Basic, a bracket.Used on trailers produced after March 1, 2001. Complete Enhanced Easy-Stop Assembly consists of an ECU, single or dual modulator valve and, for the Basic, a bracket. Package Includes: 1*ABS ECU Valve Assembly