1974 GMC K25/K2500 Pickup equipped with 7.4L V8 Gas OHV, 5.7L V8 LPG OHV, 5.7L V8 Gas OHV, 4.8L L6 LPG OHV, 4.8L L6 Gas OHV, 4.1L L6 LPG OHV, 4.1L L6 Gas OHV
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AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System
1974 GMC K25/K2500 Pickup equipped with 7.4L V8 Gas OHV, 5.7L V8 LPG OHV, 5.7L V8 Gas OHV, 4.8L L6 LPG OHV, 4.8L L6 Gas OHV, 4.1L L6 LPG OHV, 4.1L L6 Gas OHV
AC System Seal Kit Caps and Valve Core Seal Kit w/ R12 or R134a Retrofit System