For 1988-1990 GMC S15 4.3L V6 A/C Accumulator UAC 1989

1988 GMC S15 Engine: 4.3L V6; EngineCode: LB4; EngineVIN: Z; Without Service Port;. 1989 GMC S15 Engine: 4.3L V6; EngineCode: LB4; EngineVIN: Z; Without Service Port;. 1990 GMC S15 Engine: 4.3L V6; EngineCode: LB4; EngineVIN: Z; Without Service Port;.