Seller notes

This set includes 4 ACDelco Professional spark plugs with part number 41-125, designed for various Buick, Cadillac, Chevrolet, and GMC vehicles. The spark plugs feature a single prong electrode and are made of iridium and copper materials. They come pre-gapped and have a thread diameter of 0.551 inches with a 16mm hex size for installation. Compatible with gasoline engines, these spark plugs are a direct replacement for OE parts and are suitable for models like Envision, Regal, ATS, CT6, CTS, Ca...

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