Denso 6EP-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
1971	Cadillac	DeVille	Base
1971	Cadillac	Eldorado	Base
1968	Cadillac	Fleetwood	60 Special, Brougham, Base, 75
1969	Chevrolet	C30 Pickup	Base
1968	Chevrolet	Chevy II	Nova
1968	Chevrolet	El Camino	Custom, Base, SS
1968 - 1969	Chevrolet	Impala	Base
1978 - 1988	Chrysler	LeBaron	Base
1984	Chrysler	LeBaron	Mark Cross
1978	Chrysler	LeBaron	Medallion, S
1987 - 1988	Chrysler	LeBaron	Premium, GTS
1987	Chrysler	LeBaron	Turbo
1972	Dodge	B100 Van	Sportsman, Base
1984 - 1990	Dodge	B250	Base
1976	Dodge	B300	Base
1973 - 1974	Dodge	B300 Van	Maxi, Base, Sportsman, Maxi Wagon
1970 - 1972	Dodge	Challenger	Base
1970 - 1971	Dodge	Challenger	R/T
1972	Dodge	Challenger	Rallye
1970	Dodge	Challenger	T/A
1969 - 1971	Dodge	Charger	500, Base, R/T
1969	Dodge	Charger	Daytona, SE
1971	Dodge	Charger	Special Edition, Super Bee
1967 - 1973	Dodge	Coronet	Base
1973	Dodge	Coronet	Custom, Crestwood
1967	Dodge	Coronet	R/T, 440, 500
1977	Dodge	D100	Base, Custom, Warlock, Club Cab
1968 - 1973	Dodge	D100 Pickup	Base
1978	Dodge	D150	Base, Li'l Red Express
1975 - 1976	Dodge	D200	Custom
1968	Dodge	Dart	270
1968 - 1974	Dodge	Dart	Base
1969 - 1974	Dodge	Dart	Custom, Swinger
1971 - 1972	Dodge	Dart	Demon 340, Demon
1968 - 1969	Dodge	Dart	GT, GTS
1971 - 1974	Dodge	Dart	Special
1974	Dodge	Dart	Special Edition, Sport 360
1973 - 1974	Dodge	Dart	Sport
1973	Dodge	Dart	Sport 340
1969	Dodge	Dart	Swinger 340
1974	Dodge	Ramcharger	Base
1989	Dodge	Shadow	ES, Base, Shelby
1989	Dodge	Spirit	ES, LE, Base
1975	Dodge	W100	Custom
1987	Dodge	W150	Base
1969	Dodge	W300 Pickup	Base
1985 - 1986	Jeep	Grand Wagoneer	Base
1985	Jeep	Grand Wagoneer	Limited
1971	Plymouth	Duster	340
1974	Plymouth	Duster	360
1971 - 1974	Plymouth	Duster	Base
1971	Plymouth	Fury III	Base, Sport Suburban
1968	Plymouth	Satellite	Sport, Base
1990	Plymouth	Sundance	RS, Base
1969	Plymouth	Valiant	Signet, Base, 100