1991 GMC G1500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
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AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System
1991 GMC G1500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System