ACCEL Shorty Resistor Version of 111-137 - .035'' Nominal Gap - (4 Pack) 57950BK 3-1/4 x 1-1/4 in Body

3-1/4 x 1-1/4 in Body

and adjustable Velcro wrist closure

2-1/2 in Diameter

30 in Length

ACCEL Shorty Resistor Version of 111-137 - .035'' Nominal Gap - (4 Pack) 57950BK 3-1/4 x 1-1/4 in BodyACCEL U Groove Spark plugs have set the standard for High Performance Spark Plugs. ACCEL Engineers developed and patented the U Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed. As a result, ACCEL is moving away from the U