A genuine Japanese standard fitting NGK Spark Plug for Mariner, Mercury, Selva, Suzuki and Tohatsu marine engines. A pure alumina silicate ceramic insulator provides superior strength and heat transfer, whilst a copper core aids heat removal. Corrugated ribs prevent flashover and triple seals prevent leakage.
Spark plugs are a vital component of your marine engine ignition system, as they supply the spark that ignites a mixture of air and fuel within the cylinders of your engine, thus creating a combustion that makes your engine operation.
Champion Correspondences: L82C.
Technical Specifications:
Shell:
Thread Diameter: 14mm.
Thread Pitch: 1.25mm.
Hex Size: 21mm.
Reach: 12.7mm.
Seat Type: Gasket.
Terminal Type: Removable Nut.
Gap: 0.7mm.
Centre Electrode:
Material: Nickel.
Type: Standard.
Size: 2.5mm.
Projection: Non-Projected.
Ground Electrode:
Material: Nickel.
Type: Standard.
Specifications:
Resistor: No.
Resistor Value: 1K Ohm.
Heat Range: 7.
Torque Specs: Cast Iron: 18-25.3lb, ft Aluminium 18-21.6lb ft.
Longevity: 30,000 miles.
NGK Spark Plug B7HS is suitable for the following marine engines:
Mariner, Mercury, Selva, Suzuki and Tohatsu.
