Spark Plug

DENSO

5/8 in. hex size, Removable nut terminal type, Gasket seat style, ISO overall height, Machine rolled threads, 0.4 mm center electrode, Iridium power electrode configuration

IK20

Iridium Electrode Tip

Sold Individually

1-year Denso limited Warranty

Spark Plug

NGK

5000 Ohms Resistance, 50.5 mm Insulator Height, 5/8 in. Hex Size, (1) Standard Ground Electrode, Nickel Core Ground Electrode Material, Taper Cut Core Design, Flat Seat, Non-Removable Nut Terminal Type

Iridium Electrode Tip

Sold Individually

60-day NGK limited warranty

Fuel Saver