1991 GMC G2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
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GM Original Equipment AIR INJECTION REACTOR SYSTEM(K19)
1991 GMC G2500 equipped with 6.2L V8 Diesel OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
GM Original Equipment AIR INJECTION REACTOR SYSTEM(K19)