Accel High Performance U-Grove Spark Plugs(2)

Accel U-Groove Performance Spark Plugs Have A Patented U-Shaped Ground Electrode That Produces A Double Wide, Hotter Spark To Ignite Standard Or Even Highest Compression Engines. The Sintered Alumina Heavy-Duty Five Rib Insulator Eliminates "Flashover" And Overheating That Occurs With High Performance And Range Applications. Accel U-Groove Spark Plugs Use The Purest Copper/Nickel Alloy Electrode To Produce A Broad Heat Range That Is Highly Foul Resistant And Dissipates Heat Better Than Any Other Material. Years Of Racing And Street Performance Research Has Proven That Accel U-Groove Spark Plugs Deliver The Hottest Spark And The Highest Performance Of Any Spark Plug Available.

1979-1984 Fl, Fx (All) W/O Elect Ign 1200 Shovel Head

1980-1981 Fl, Fx (All) 1340 Shovel Head

1983-1999 Fl, Fx (All) 1340 Evolution

1984-1999 Fxst, Fxsts, Flst, Flstc

1985-1986 Fx, Fxe, Fxef, Fxwg, Fxs

1984-1999 Flt, Flht