NGK Spark Plugs, CR7E #4578, 4/pk alt-37-6744 SwingKing™ bolt-on swing tongue kit

SwingKing™ bolt-on swing tongue kit converts a normal tongue into a swing tongue

Plotter Sync – Transfer routes and markers

To prevent the band tongue underneath from being deformed and causing leakage

Spring Hardware

While the end gland wrench is conveniently adaptable to fit both 4-hole and 8-hole end glands

NGK Spark Plugs, CR7E #4578, 4/pk alt-37-6744 SwingKing™ bolt-on swing tongue kitStandard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life. Triple gasket sealing process eliminates gas leakage past the shell 99% Highly pure alumina silicate insulator Solid copper core Corrugated ribs to prevent flash over Cold rolled threads to prevent damage to cylinder head Trivalent