... Fin Design• For 17SI, 21SI, CS144FOR USE ON:GM P Series Step-up Van, Chevy Corvette, Buick Regal, Cadillac, ... Chevy Blazer, CK-Series Trucks, GMC Suburvan Original NumberDELCO10467052, D39901989774For use on ALTERNATORS: ... , HITACHI, MITSUBISHI, MANDO, NIPPONDENSO, NISSAN, ISUZU, HINO, SAWAFUJI series, etc.2, Application: cars, buses, heavy duty trucks, tractors, ...