1979 GMC C1500 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.7L V8 Diesel OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
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1/8 In. NPT wo/Extension Dorman HELP! Carded
1979 GMC C1500 equipped with 7.4L V8 Gas OHV, 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.7L V8 Diesel OHV, 5.0L V8 Gas OHV, 4.8L L6 Gas OHV, 4.1L L6 Gas OHV
1/8 In. NPT wo/Extension Dorman HELP! Carded