I recently removed a spark plug from my sierra to identify what was in the truck part # 41-974 . I have scoured all sites to find spark plugs that I can use on my truck that are iridium I keep having 41-110 show up however they say it is not compatible with my vehicle. Does anyone know which plugs I can use for my vehicle .
GMC sierra 2002 5.3L 1500
- Thread starter Dcas3443
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