Radiator Isolator Kit Radiator Isolator Kit; Red; 4 pc. CHEVROLET GMC C1500 PICKUP C2500 PICKUP C3500 PICKUP K1500 K1500 PICKUP K2500 PICKUP K3500 PICKUP R20 PICKUP R2500 PICKUP R30 PICKUP R3500 PICKUP V30 PICKUP V3500 PICKUP BASE CHEYENNE CUSTOM DELUXE HIGH SIERRA SCOTTSDALE SIERRA SIERRA CLASSIC SIERRA SL SIERRA SLE SIERRA SLS SIERRA SLT SIERRA SLX SIERRA SPECIAL SIERRA SPORT SIERRA XC SILVERADO SLE SPORT WT 1988 1989 1990 1991 1992 1993 1994 1995 5.7L (350) 5.7L L05 (350) 5L (305) CNG GAS Prothane Motion Control Prothane Motion Control Radiator Isolator Kit - 7-1713 7-1713 Radiator Isolator