NGK Nickel Spark Plug 14mm Thread Diameter

The NGK nickel spark plug is designed to ensure optimal performance in your engine. With a thread diameter of 14 mm and a pitch of 1.25 mm, this spark plug offers a tapered seat type that ensures a perfect seal. Its reach of 18 mm and hex size of 16 mm (5/8) make it compatible with a wide range of motorcycles.

Made of nickel, this standard spark plug is resistor-free and features a gap of 0.7 mm, ideal for efficient combustion. Its heat resistance is rated with a range of 9, while the torque specifications for installation vary from 10.8 to 18 lb-ft for cast iron and from 7.2 to 14.5 lb-ft for aluminum. With a longevity of 30,000 miles, it is a reliable component for those looking to maintain high performance in their motorcycle.

Choose the NGK spark plug for precise ignition and uncompromised riding.

• Thread diameter: 14 mm
• Pitch: 1.25 mm
• Seat type: tapered
• Reach: 18 mm
• Hex size: 16 mm (5/8')
• Material: nickel
• Resistor-free
• Gap: 0.7 mm
• Heat resistance: range 9
• Torque specifications for installation:
  • Cast iron: 10.8 - 18 lb-ft
  • Aluminum: 7.2 - 14.5 lb-ft
• Longevity: 30,000 miles