ACCEL U Groove Shorty Spark Plug - 0276S (4 Pack) Drag Parachute Pack ALL17121 is commonly used on

ALL17121 is commonly used on non-bushing type brackets

and trucks

250" Reach

1954-1956 Ford Customline

Heavy-duty blades are twice as thick as standard blades for removing large amounts of material with less chance of blade damage

ACCEL U Groove Shorty Spark Plug - 0276S (4 Pack) Drag Parachute Pack ALL17121 is commonly used onACCEL U Groove performance spark plugs produce a larger spark for more power at high rpms. They improve throttle response and fuel economy and reduce fouling. Their purified Alumina insulator prevents arcing and their machine rolled threads protect heads. **Please Note** Although ACCEL still calls these U Groove Plugs they do not groove the electrode. Vehicle Applications: 1971 1974 Mercury Colony Park 1971 1985 Chevrolet C20 Suburban 1976 1978 GMC