2007 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 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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Binary HPCO/LPCO Switch
2007 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 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
Binary HPCO/LPCO Switch