ACCEL Spark Plug - 14 mm Thread - 0.750 in R - Gasket Seat - Resistor - Set of 4 HYPLSML11PAFIA Efficient when rainy : The

Efficient when rainy : The very high wet boiling point (204C / 399F) superior to conventional DOT 5

1995-1999 GMC K1500 Suburban

EVO Premium

1990-1995 Chevrolet Lumina

ACCEL Spark Plug - 14 mm Thread - 0.750 in R - Gasket Seat - Resistor - Set of 4 HYPLSML11PAFIA Efficient when rainy : TheACCEL 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