NGK 5766 Iridium Spark Plug IMR9C-9HES for 2004-2025 Honda CBR/CB1000R

Vehicle Fitment

• 2004-2019 Honda CBR1000RR (1000 cc Inline-4)
• 2014-2019 Honda CBR1000RR SP/SP2 (1000 cc Inline-4)
• 2005-2011, 2016-2024 Honda CBR600RR (600 cc Inline-4)
• 2011-2016, 2018-2019 Honda CB1000R (998 cc Inline-4)
• 2021-2024 Honda CB1000RA Black Edition (998 cc Inline-4)

Features

• Premium NGK Laser Iridium spark plug for performance engines
• Fine-wire iridium center electrode for superior ignitability
• Platinum pad on ground electrode for even wear and longer life
• Trivalent metal plating resists corrosion and seizing
• Projected tip improves combustion and throttle response
• Resistor design (5 kΩ) suppresses electrical interference
• Copper core enhances heat transfer and durability
• Standard 16 mm hex for easy installation with common tools

Specifications

• Brand: NGK
• Part Number: 5766 / IMR9C-9HES
• Thread Size: M10 x 1.0
• Reach: 19 mm (¾")
• Heat Range: 9 (Laser Iridium)
• Electrode Material: Iridium center, platinum ground
• Core Material: Copper
• Resistor: Yes (5 kΩ)
• Seat Type: Gasket/Flat

Included Components

• 1x NGK 5766 (IMR9C-9HES) Laser Iridium Spark Plug

Product Description

The NGK 5766 (IMR9C-9HES) Laser Iridium spark plug delivers premium ignition performance for select Honda sport and naked motorcycles. Its fine-wire iridium center electrode and platinum ground electrode provide exceptional ignitability, longer wear life, and improved combustion efficiency compared to standard plugs. The advanced design helps maintain stable idle quality, smoother throttle response, and consistent performance across varying RPM ranges.

Built with a copper core for excellent heat transfer and trivalent plating for corrosion resistance, this plug ensures reliable operation in high-revving four-cylinder engines like the CBR1000RR, CBR600RR, and CB1000R series. The resistor design helps suppress electrical noise that can interfere with electronic ignition systems. Easy to install with a standard 16 mm socket, the NGK 5766 is a great choice for routine maintenance or performance refresh on compatible Honda bikes.