Denso W14-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
1968 - 1969	Avanti	II	Base
1969	Chevrolet	C10 Pickup	Base
1969	Chevrolet	C10 Suburban	Base
1969	Chevrolet	C20 Pickup	Base
1969	Chevrolet	C20 Suburban	Base
1969	Chevrolet	C30 Pickup	Base
1969	Chevrolet	El Camino	SS, Base, Custom
1969	Chevrolet	G10 Van	Sportvan, Base
1969	Chevrolet	G20 Van	Sportvan, Base
1969	Chevrolet	K10 Pickup	Base
1969	Chevrolet	K10 Suburban	Base
1969	Chevrolet	K20 Pickup	Base
1969	Chevrolet	K20 Suburban	Base
1969	Chevrolet	K30 Pickup	Base
1969	Chevrolet	P20 Van	Base
1969	Chevrolet	P30 Van	Base