NGK CR9EKB Spark Plug – High-Performance Multi-Ground Electrode Spark Plug

Product Overview

The NGK CR9EKB Spark Plug is a high-quality multi-ground electrode spark plug designed for reliable ignition and consistent performance in a wide range of engines. Featuring dual ground electrodes, this spark plug provides a strong and stable spark, reducing the effects of electrode wear over time. Built to OEM specifications, it utilises nickel alloy electrodes and a 98% pure copper core, ensuring excellent heat dissipation, efficient combustion, and a long lifespan.

Its high-strength alumina silicate ceramic insulator enhances durability and electrical performance, while cold-rolled threads prevent cross-threading and cylinder head damage. Additionally, trivalent metal plating offers superior corrosion resistance and eliminates the need for anti-seize, ensuring easy installation and removal.

The NGK CR9EKB spark plug is a direct replacement for many high-performance motorcycles, ATVs, snowmobiles, and marine engines, making it an excellent choice for maintaining engine efficiency and reliability.

Key Features:

✔ Multi-Ground Electrode Design – Dual ground electrodes improve ignition reliability and ensure consistent combustion over time.
✔ Copper Core & Nickel Alloy Construction – 98% pure copper core enhances heat dissipation, while nickel alloy electrodes provide durability.
✔ High-Strength Insulator – Made from alumina silicate ceramic to withstand extreme temperatures and prevent electrical flashover.
✔ Cold-Rolled Threads – Designed to prevent cross-threading, making installation safer and more secure.
✔ Triple Gasket Seal – Prevents combustion gas leakage, ensuring optimal efficiency.
✔ Trivalent Metal Plating – Resists corrosion and seizing, making removal and maintenance hassle-free.
✔ Resistor Type Spark Plug – Reduces electromagnetic interference (EMI) to protect onboard electronics.

Technical Specifications

• Thread Size: 10 mm diameter, 1.0 mm pitch
• Thread Reach (Length): 19 mm (3/4")
• Seat Type: Flat gasket seat
• Hex Size: 16 mm (5/8")
• Heat Range: 9 (NGK heat rating – mid-cold)
• Spark Gap: 0.7–0.8 mm (0.028–0.031 inches)
• Electrode Design: Multi-ground, with 2 ground electrodes
• Electrode Material: Copper core centre electrode with nickel alloy tips
• Resistor: Yes – 5 kΩ for EMI suppression
• Terminal Type: Solid non-removable terminal nut
• Manufacturer Part Number: NGK 2305 (CR9EKB)

Applications & Compatibility

The NGK CR9EKB spark plug is widely used in motorcycles, ATVs, snowmobiles, and marine engines. It is an OEM-specified component for several high-performance motorbikes, including:

• Motorcycles: Aprilia RSV4, KTM SX-F/XC-F, Husqvarna TE/TC series, Yamaha FZ and YZF models.
• Snowmobiles: Yamaha Phazer, Venture Lite, and other models.
• Jet Skis & Personal Watercraft: Used in select Kawasaki and Yamaha models.

Before purchasing, always check your vehicle’s manual or OEM specifications to ensure compatibility.

Benefits of the NGK CR9EKB Spark Plug

✔ Improved Ignition & Engine Performance – Ensures reliable starts, smoother running, and reduced misfires.
✔ Enhanced Fuel Efficiency – Delivers optimal combustion, helping to save fuel and maximise power output.
✔ Longer Engine Life – Prevents overheating and reduces stress on ignition components.
✔ Reliable & Durable – High-quality materials ensure long-lasting performance.
✔ Easy Installation & Maintenance – Cold-rolled threads prevent cross-threading, while trivalent plating eliminates the need for anti-seize.

Installation & Maintenance Tips

🔧 Check Compatibility: Always verify the correct spark plug for your engine before installation.
🔧 Gap Adjustment: The spark plug is pre-gapped to 0.7–0.8 mm, but check your engine’s specifications before installation.
🔧 Hand-Tighten First: Always start threading the spark plug by hand to prevent cross-threading.
🔧 Torque to Spec: Follow your engine manufacturer’s recommended torque settings for proper installation.
🔧 No Anti-Seize Required: NGK spark plugs are plated to prevent seizing, so do not apply anti-seize compounds.
🔧 Regular Maintenance: Inspect and replace spark plugs as per your vehicle’s service schedule for peak performance.

Why Choose NGK?

NGK is a world leader in ignition technology, trusted by top automotive and motorsport manufacturers. Their advanced materials, precision engineering, and strict quality control ensure that every NGK spark plug delivers exceptional performance, longevity, and reliability.

Upgrade to the NGK CR9EKB today and experience the difference in your engine’s performance!