Accel HP Copper Spark Plug, Shorty, 14mm Thread, .375" Reach, Tapered Seat, Set of 4 - (ACL-0437S-4)

DescriptionU-Groove Resistor Spark Plug; 14mm Thread; .708 in. Reach; Heat Range 6; 4 Pack;ACCEL silver tip racing plugs have better ignitability than conventional performance spark plugs, and offer...

DescriptionU-Groove Spark Plug Header Plug; Standard; Shorty Plug For Headers; 4 Pack;ACCEL U-groove performance spark plugs produce a larger spark for more power at high RPMs. Improves throttle...

DescriptionU-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0576S-4]; 8 Pack;ACCEL U-groove performance spark plugs produce a...

DescriptionU-Groove Copper Spark Plug; 14mm Thread; .460 in. Reach; Heat Range 6; Each;Made with a Copper Core Which is a Better Conductor than Platinum and Iridium. Delivers a Stronger Spark...

DescriptionU-Groove Resistor Spark Plug; 14mm Thread; 3/4 in Reach; Heat Range 6; 4 Pack;ACCEL silver tip racing plugs have better ignitability than conventional performance spark plugs, and offer...