NGK

R5671A-7; Racing Spark Plug; Single

R5671A-8; Racing Spark Plug; Single

R5671A-9; Racing Spark Plug; Single

R5672A-8; Racing Spark Plug; Single

R5672A-9; Without Resistor; Copper; Nickel With V-Groove; Racing; Single; 14 Millimeter Thread; 19 Millimeter Reach; 5/8 Inch Hex; Heat Range 9; 0.031 Inch Gasp; Gasket Seat

R5673-10; Non Automotive; Single

R5673-6; Non Automotive; Single

R5673-7; Non Automotive; Single

R5673-8; Non Automotive; Single; Refer Document Section For Marine Applications

R5673-9; Racing Spark Plug; Single

R5674-10; Without Resistor; Copper; Nickel With V-Groove; Racing; Single; 14 Millimeter Thread; 11 Millimeter Reach; 5/8 Inch Hex; Heat Range 10; 0.020 Inch Gap; Tapered Seat

R5674-6; Without Resistor; Copper; Nickel With V-Groove; Racing; Single; 14 Millimeter Thread; 11 Millimeter Reach; 5/8 Inch Hex; Heat Range 6; 0.031 Inch Gap; Tapered Seat