Tune up kit for Mercruiser 5.0, 5.7, 7.4, 8.2 V8 engines with Thunderbolt

Includes spark plug wires, distributor cap/rotor, and 8 MR43LTS spark plugs for 1997 and newer engines. The spark plugs are for Vortec engines 1997 and newer. Eight AC Delco MR43LTS spark plugs. Check your engine cover to ensure these are the correct spark plugs for your engine before ordering.

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