1977 Chevrolet K20 Suburban equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV
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AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System
1977 Chevrolet K20 Suburban equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV
AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System