HP Copper Spark Plug; 1 Heat Range Colder Than Stock; 0.028 in. Gap; 5/8 in. Hex Size; 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; 4 Pack;
U-Groove Standard Spark Plug; Copper Core; 14mm Thread; 0.750 in. Reach; Heat Range 2; 4 Pack; [Available While Supplies Last];
Copper Spark Plug; Motorcycle Spark Plug; Harley Twin Cam; .040 in. Gap; 2 Pack ;
HP Copper Spark Plug; Stock Heat Range; 0.030 in. Gap; 5/8 in. Hex Size; 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; Each;
U-Groove Resistor Spark Plug; 14mm Thread; .708 in. Reach; Heat Range 6; 8 Pack;
Premium Automotive Spark Plug; Resistor; 5/8 in. Hex Size; 0.750 in. [0.917 in. w/Skirt] Thread Reach; 14mm Thread Diameter; Gasket Seat; DiamondFIRE Tip w/Fixed Gap;
U-Groove Spark Plug Header Plug; Standard; Shorty Plug For Headers; 4 Pack;
Moroso Spark Plug Indexing Washer Kit Flat Seat P/N 71910
U-Groove Spark Plug Header Plug; 14mm Thread; Cooper; Shorty Plug For Headers; .750 in. Reach; Champion RC8/RC9/RC10 Heat Ranges; 4 Pack;
U-Groove Spark Plug Header Plug; 14mm Thread; .375 in. Reach; Heat Range 6; Gasket Seat; 13/16 Hex; Projected Tip; Resistor; 4 Pack;
U-Groove Spark Plug Header Plug; 14mm Thread; .460 in. Reach; Heat Range 5; Tapered Seat; 5/8 Hex; Projected Tip; Resistor; 4 Pack;
U-Groove Spark Plug Header Plug; 14mm Thread; Shorty Plug For Headers; .750 in. Reach; Champion RC12/RC13/RC14 Heat Ranges; 4 Pack;
HP Copper Spark Plug; 1 Heat Range Colder Than Stock; 0.028 in. Gap; 5/8 in. Hex Size/ 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; 6 Pack;
U-Groove Spark Plug Header Plug; 14mm Thread; .375 in Reach; Gasket Seat; 13/16 Hex; Projected Tip; Resistor; 8 Pack;
HP Copper Spark Plug; 1 Pc. C-Cut Design; 1 Range Colder Than Stock; 0.032in. Gap; 5/8in. Hex Size; 1in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size;
U-Groove Resistor Spark Plug; 14mm Thread; .460 in. Reach; Heat Range 6; 4 Pack;
HP Copper Spark Plug; 2 Heat Ranges Colder Than Stock; 0.026 in. Gap; 5/8 in. Hex Size; 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; 4 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;
HP Copper Spark Plug; 1 Heat Range Colder Than PN[579]; 0.032 in. Gap; 5/8 in. Hex Size; 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; Each;
Allstar Performance 14mm Flat Seat Spark Plug Indexing Washer Kit P/N 96505
U-Groove Spark Plug Header Plug; Double Platinum Shorty; Individual;
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;
Allstar Performance 14mm Flat Seat Spark Plug Indexing Washer Kit P/N 96506
