Product Description Diamond Gard Heavy Duty Starter, Fits Freightliner, Sterling & Western Star Detroit Diesel S60 1998-2006, CAT C10/C12/C15 1998-2003, CAT C11/C13/C15 AERT 2004-2006, Cummins ISX/ISM/N14 1998-2002. Starter Solenoid #12-10581. See Attached Document for Additional Information.