e3 diamondfire spark plug sold individually 14 mm thread 25.4 mm reach 5/8 in. hex size resistor type tapered seat copper core platinum tipped center [more info..]
e3 diamondfire spark plug sold individually 14 mm thread 18 mm reach 5/8 in. hex size resistor type tapered seat copper core projected tip platinum ti [more info..]
e3 diamondfire spark plug sold individually 14 mm thread 19 mm reach 13/16 in. hex size resistor type gasket seat copper core projected core nose exte [more info..]
e3 diamondfire spark plug sold individually 14 mm thread 18 mm reach 5/8 in. hex size resistor type tapered seat skirted shell firing end 0.200 in. co [more info..]