About SparkPlugCross

SparkPlugCross is a free tool for finding the right spark plug — fast.

We do three things: find the correct plug for your exact vehicle, decode any part number into its real specs, and cross-reference a plug to every other brand's true equivalent. We cover NGK, Denso, Champion, Bosch, Autolite, ACDelco, Motorcraft and Pulstar.

Our cross-references match on physical fit and normalized heat range — the specs that actually determine whether a plug is interchangeable — rather than on part numbers, which don't line up across brands.

SparkPlugCross is independent and not affiliated with any manufacturer. Brand names are used only to identify parts. We earn affiliate commissions when you buy through our links, at no cost to you — see our affiliate disclosure.