Champion 9407 Spark Plug

Reliable Ignition Performance for Acura, Honda, and More

The Champion Iridium 9407 spark plug is engineered to deliver consistent ignition and efficient combustion for a wide range of vehicles including Acura, Honda, Jeep, and Volkswagen models. Designed with durable materials and precise specifications, this spark plug supports optimal engine performance and fuel efficiency.

• Iridium center electrode tip for enhanced durability and ignition
• J gap ground electrode tip design for stable spark delivery
• Nickel copper alloy ground electrode for corrosion resistance
• Non-removable nut electrical terminal type for secure connection
• Flat seat type with 1.103 inch reach for proper fitment
• Resistor type to reduce electrical noise interference
• Pre-gap size of 0.041 inches (1.05 mm) for precise spark gap
• Heat range 8 suitable for various engine conditions
• Compatible with multiple makes and models including Acura Accord, Dodge Charger, Jeep Wrangler, and Volkswagen Passat

Detailed Features of Champion Iridium 9407 Spark Plug

The Champion Iridium 9407 spark plug features a fine iridium center electrode tip measuring 0.078 inches in diameter, which provides excellent wear resistance and stable ignition over time. The ground electrode uses a nickel copper alloy with a J gap design, optimizing spark exposure and combustion efficiency. The spark plug includes a non-removable nut electrical terminal and a flat seat type ensuring a secure and proper fit in engines requiring a 1.103 inch reach and 12 mm thread diameter. The resistor built into the plug helps minimize radio frequency interference, supporting vehicle electronics. With a heat range of 8, this plug is suitable for a variety of driving conditions and engine types found in vehicles like the Honda CR-V, Chrysler 300, and Mitsubishi Outlander.

Compatible Vehicles and Applications

• Acura models such as ILX, MDX, and RLX
• Honda Accord, Civic, CR-V, and Odyssey
• Jeep Wrangler and Grand Cherokee
• Dodge Charger, Challenger, and Durango
• Volkswagen Passat, Touareg, and CC

Common Issues Addressed by Champion Iridium 9407

• Engine misfires and rough idling
• Poor fuel economy due to incomplete combustion
• Difficulty starting the engine in cold conditions
• Reduced engine power and acceleration
• Increased emissions from inefficient ignition

Installation Notes and Tips

Before installation, verify the spark plug gap is set to the specified 0.041 inch (1.05 mm) pre-gap size. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or improper sealing. The flat seat design requires proper seating against the cylinder head to ensure optimal combustion chamber sealing. It is advisable to inspect the ignition system components and replace spark plugs in sets for consistent performance.

Quality Assurance and Warranty

The Champion Iridium 9407 spark plug is manufactured to meet OEM specifications and undergoes rigorous quality control to ensure reliability and durability. Champion provides a limited warranty covering defects in materials and workmanship, supporting long-term vehicle performance when installed and maintained according to guidelines.

About the Champion Iridium Product Line

The Champion Iridium line is designed to offer enhanced durability and ignition efficiency through the use of iridium center electrodes, which resist wear and maintain a stable spark over extended service intervals. This product line balances advanced materials with precise engineering, making it suitable for a broad range of vehicles requiring reliable secondary ignition components, such as the Champion Iridium 9407 spark plug.