Automotive Performance Spark Plugs

U-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 2 Of PN[0574S-4]; 8 Pack;

HP Copper Spark Plug; 1 Piece C-Cut Design; 9/16 in. Hex Size; 1.04 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 12mm Pitch Size; 1 Range Colder Than Stock; Each;

AUTOLITE 14.0 mm Thread Tapered Seat Racing Spark Plug P/N AR93

NGK 14 mm Thread Gasket Seat NGK Standard Spark Plug P/N BR9EG

NGK 14 mm Thread Tapered Seat NGK V-Power Spark Plug P/N UR6

AUTOLITE 14.0 mm Thread Tapered Seat Spark Plug P/N 26

AUTOLITE 14.0 mm Thread Gasket Seat Spark Plug P/N 66

AUTOLITE 18.0 mm Thread Tapered Seat Racing Spark Plug P/N AR32

AUTOLITE 14.0 mm Thread Gasket Seat Spark Plug P/N 403

AUTOLITE 14.0 mm Thread Tapered Seat Spark Plug P/N 144

AUTOLITE 14.0 mm Thread Gasket Seat Spark Plug P/N 64

AUTOLITE 14.0 mm Thread Tapered Seat Spark Plug P/N 605

AUTOLITE 14.0 mm Thread Gasket Seat Spark Plug P/N 3923

AUTOLITE 14.0 mm Thread Gasket Seat Racing Spark Plug P/N AR3910

AUTOLITE 14.0 mm Thread Tapered Seat Racing Spark Plug P/N AR474

AUTOLITE 14.0 mm Thread Tapered Seat Spark Plug P/N 24

AUTOLITE 14.0 mm Thread Tapered Seat Racing Spark Plug P/N AR132

AUTOLITE 14.0 mm Thread Tapered Seat Spark Plug P/N 5243

AUTOLITE 14.0 mm Thread Gasket Seat Racing Spark Plug P/N AR3910X

AUTOLITE 14.0 mm Thread Tapered Seat Racing Spark Plug P/N AR92

AUTOLITE 14.0 mm Thread Gasket Seat Racing Spark Plug P/N AR3933

AUTOLITE 14.0 mm Thread Gasket Seat Racing Spark Plug P/N AR72

AUTOLITE 18.0 mm Thread Tapered Seat Racing Spark Plug P/N AR33

AUTOLITE 14.0 mm Thread Gasket Seat Racing Spark Plug P/N AR73

AUTOLITE 14.0 mm Thread Tapered Seat Racing Spark Plug P/N AR25