Injectors & Nozzle Description
This Injectors & Nozzle is indexed for GMC Yukon · V8 5.3L Flex · 2015-2018; GMC Yukon XL · V8 5.3L Flex · 2015-2018; GMC Sierra 1500 · V6 4.3L · 2014-2018; GMC Sierra 1500 · V8 5.3L Flex · 2014-2018. Compare reference number 12668390 against the label on your existing GMC component before ordering.
Additional cross references on file: 12656005, 12681212, 12672368. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.




