24 Volt, B-Circuit, 28.3 Vset For: Bosch IR/IF Alternators Used On: Mercedes-Benz Trucks IB298Used On: Mercedes-Benz TrucksUnit Nos: Bosch 0-124-555-001, -002, -004, -007, -008; 0-124-655-001, -002, -004; Mercedes 012-154-10-02Lester Nos: 12387, 12389Note: Terminal markings: W-L-15-S-DFM