For 1968-1974 GMC K25/K2500 Suburban A/C System Valve Core and Cap Kit 84314CS

1974 GMC K25/K2500 Suburban 7.4L V8 VIN: Z. 1974 GMC K25/K2500 Suburban 5.7L V8 VIN: V 2BBL OHV. 1973-1974 GMC K25/K2500 Suburban 7.4L V8 VIN: Z 4BBL OHV. 1973-1974 GMC K25/K2500 Suburban 5.7L V8 VIN: Y 4BBL OHV.