2003 GMC Sierra 1500 equipped with 6.0L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.8L V8 Gas OHV, 4.3L V6 Gas OHV
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GM Original Equipment--Reman=No-US ACD=Y-Can ACD=Y- EXCEPT REAR AUXILLIARY A/C(C69) SWITCH SIDE
2003 GMC Sierra 1500 equipped with 6.0L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.8L V8 Gas OHV, 4.3L V6 Gas OHV
GM Original Equipment--Reman=No-US ACD=Y-Can ACD=Y- EXCEPT REAR AUXILLIARY A/C(C69) SWITCH SIDE