1991 GMC C2500 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
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MATING CONN W/LEADS USE 12085521 ENGLISH THREAD, CONTAINS VALVE, O-RING AND AN ADAPTER A/C MANUAL CONTROLS(C60)
1991 GMC C2500 equipped with 7.4L V8 Gas OHV, 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
MATING CONN W/LEADS USE 12085521 ENGLISH THREAD, CONTAINS VALVE, O-RING AND AN ADAPTER A/C MANUAL CONTROLS(C60)