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.

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.

Technical Specifications:

Shell:
Thread Diameter: 14mm.
Thread Pitch: 1.25mm.
Hex Size: 21mm.
Reach: 12.7mm.
Seat Type: Gasket.
Terminal Type: Removable Nut.
Gap: 1mm.

Centre Electrode:
Material: Nickel.
Type: Standard.
Size: 2.5mm.
Projection: Non-Projected.

Ground Electrode:
Material: Nickel.
Type: Standard.

Specifications:
Resistor: Yes.
Resistor Value: 5K Ohm.
Heat Range: 6.
Torque Specs: Cast Iron: 18-25.3lb, ft Aluminium 18-21.6lb ft.
Longevity: 30,000 miles.

NGK Spark Plug BR6HS-10 is suitable for the following models of marine engines:

Outboards:
Suzuki: DT5 1995, DT6 1993.
Yamaha: 6D, T8/E/P 2006, T8 OHV 4-Stroke High Thrust 2001-2005, T8 8.0HP 2006-2010.
Yamaha Four Stroke Model: F6A 2001, F6B 2001, F6M 2007, F8C 2001, F8M 2007, F9.9EHG/EHH 2007, F9.9F 2008, F9.9MHG/MHH 2007, FT8D 2001, FT9.9G 2008, T8D 2008, T8E 2008, T8M 2007, T8P 2007, T9.9EHG/EHH/ERG/ERH 2008, T9.9GEH/GPH/GPR 2008, T9.9MHG/MHH 2008, T9.9PRG/PRH/PHG/PHH 2008.