Denso 6EX-U U-Groove Spark Plug

Spark plugs are not all alike. With the world-famous DENSO U-Groove spark plug it's easy to see, thanks to its patented U-shaped ground electrode. The U-Groove forms a channel for the spark nucleus to form at the instant of ignition, limiting quenching to generate a more potent spark. The premium features don't stop there: DENSO's distinctive five-rib insulator in purified alumina prevents leakage and flashover, while dual internal copper-glass seals and a copper-core center electrode with nickel-alloy tip assure reliable spark delivery. To keep your engine running smoothly, its spark plugs must fire 25 times a second or more. If just one spark plug skips a beat you'll know it instantly, with rough running, poor acceleration, and reduced fuel economy. DENSO U-groove spark plugs combine dependable performance and superior value.

Vehicle Fitments:

Year	Make	Model	Submodel
1974 - 1979	Audi	Fox	Base
1978	BMW	633CSi	Base
1979	BMW	733i	Base
1985 - 1987	Jaguar	XJ6	Base, Sovereign
1975	Jaguar	XJ6	L, C
1976	Mercedes-Benz	280C	Base
1978 - 1981	Mercedes-Benz	280CE	Base
1975 - 1976	Mercedes-Benz	280S	Base
1982	Mercedes-Benz	380SEC	Base
1981	Mercedes-Benz	380SEL	Base
1983 - 1984	Mercedes-Benz	380SL	Base
1987	Mercedes-Benz	420SEL	Base
1975	Mercedes-Benz	450SE	Base
1985	Mercedes-Benz	500SEC	Base
1988	Mercedes-Benz	560SEL	Base
1980	Renault	LeCar	TL, GTL
1975 - 1980	Toyota	Celica	ST, GT
1979 - 1980	Toyota	Celica	Supra
1977 - 1979	Toyota	Corolla	Custom
1975 - 1979	Toyota	Corolla	DLX, SR5
1975 - 1976	Toyota	Corona	Base
1977 - 1978	Toyota	Corona	Custom
1975 - 1980	Toyota	Corona	DLX
1979 - 1980	Toyota	Corona	LE
1975 - 1977	Toyota	Corona	SR5
1974	Triumph	Spitfire	Base
1977 - 1981	Triumph	TR7	Base
1980	Triumph	TR8	Base
1974 - 1980	Volkswagen	Dasher	Base
1976 - 1979	Volkswagen	Rabbit	Base, Custom, Deluxe
1980	Volkswagen	Scirocco	Base, S