NGK spark plug CPR8EB-9

The NGK CPR8EB-9 spark plug delivers reliable ignition and consistent performance for powerful 4-stroke engines like the Kawasaki KX-250F. Designed for durability and predictable operation under heavy loads, this is a trusted part for maintenance and tuning.

• Model/Part Number: CPR8EB-9 (NGK 6607) – resistor spark plug for stable ignition.
• Type and Construction: Resistor spark plug with copper core for efficient heat dissipation and reliable combustion; center electrode made of nickel alloy; ceramic insulator made of pure alumina silicate material.
• Design Details: Three seals prevent leakage, and corrugated ribs prevent flashover for reliable performance in all riding conditions.
• Spark Gap: 0.9 mm (0.035") – pre-set gap for consistent spark output.
• Heat Range: Heat Range 8 – balances preventing fouling at low RPM and staying cool at full throttle.
• Reach and Mounting: Reach 19.1 mm; Hex size 16 mm – designed for a secure fit and easy installation.
• Electrical Properties: Electrical resistance approximately 5 kΩ – reliable ignition with stable electrical behavior.

This spark plug is a popular choice for Kawasaki KX-250F engines from the 2011–2024 model years and similar 4-stroke systems. The combination of a copper core for efficient heat dissipation, a robust ceramic insulator, and reliable NGK quality delivers smooth ignition, improved combustion, and consistent performance during training and races. Thanks to its pre-set gap and durable construction, the CPR8EB-9 offers immediate usability and reliable operation across a variety of riding conditions.