NGK have over 80 years of experience in spark plug manufacturing and are the world leader in spark plug technology. NGK has an extensive range of spark plugs each with their own unique characteristics specifically engineered to its application and designed to suit a broad range of motorcycles ATVs & UTVs in Australasia. With NGK's dedication to quality outstanding reliability and state of the art manufacturing techniques you can rely on your NGK Spark Plugs.

Don’t just ask for a spark plug insist on NGK.

The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating. While cold-rolled threads prevent cross-threading and damage to cylinder heads and a trivalent plating eliminates the need for anti-seize. Complete with a high-grade alumina silicate ceramic.

One strategy for extending the service life of a standard nickel spark plug is to equip it with multiple ground electrodes. With such spark plugs the spark continually jumps over to a different ground electrode. In doing so the wear is distributed to up to four ground electrodes and the service life is extended.

Shell

• Thread Size: 10mm
• Thread Pitch: 1.0mm
• Seat Type: Gasket
• Resistor Value: 5K Ohm
• Reach: 19mm (3/4 )
• Hex Size: 16mm (5/8 )
• Terminal Type: Threaded Stud
• Overall Height: ISO
• Gap: 0.7mm (0.028 )

Centre Electrode

• Material: Nickel
• Type: Standard
• Size: 2.5mm
• Projection: Projected

Ground Electrode

• Material: Nickel
• Type: Multi-Ground
• Quantity: 2

Specifications

• Heat Range: 8

Bike Fitment:

• Yamaha WR450F 2003
• Yamaha WR450F 2004
• Yamaha WR450F 2005
• Yamaha WR450F 2006
• Yamaha WR450F 2007
• Yamaha WR450F 2008
• Yamaha WR450F 2009
• Yamaha WR450F 2010
• Yamaha WR450F 2011
• Yamaha WR450F 2012
• Yamaha WR450F 2013
• Yamaha WR450F 2014
• Yamaha WR450F 2015
• Yamaha WR450F 2016
• Yamaha WR450F 2017
• Yamaha WR450F 2018