OE Number: 12674639 GM12671393 12666569 12650534 12671393 12650536 12657137. for GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Flex, 6.2L V8 - Gas 2014-2019. for Chevrolet Silverado 1500 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas 2014-2019.
