NGK Standard Series spark plugs are designed for stock replacement applications. These plugs have a hotter spark, which means better combustion–and that improves performance, while producing less harmful emissions. They’re available in a variety of options. Get the spark plugs used by winning racers: NGK Standard Series.

Shorty Spark Plug: No
Resistor: Yes
Manufacturer Heat Range: 6
Electrode Tip Material: Nickel alloy
Electrode Core Material: Copper
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.460 in.
Spark Plug Seat Style: Tapered
Wrench Diameter: 5/8 in.
Ground Strap Quantity: One
Quantity: Sold individually.
Notes: Marine spark plugs.