Product Overview
Spark Plug 400

Keep your marine engine purring with the Champion Spark Plug 400. Engineered for superior performance and reliability in CNG/LPG fueled engines, this spark plug delivers a powerful, consistent spark, ensuring smooth starts, efficient fuel combustion, and optimal engine performance, even in demanding marine environments. Spend less time tinkering and more time enjoying the open water with the confidence that your engine is running at its best.
Key Features
- **Enhanced Ignition:** Iridium center electrode (NGK Iridium Spark Plug UR6IX equivalent) provides improved ignitability and durability for longer life and peak performance.
- **Reliable Performance:** Designed specifically for CNG/LPG fuel systems, ensuring optimal combustion and efficient fuel use.
- **Durable Construction:** Nickel alloy construction (Champion Spark Plug RV9YC equivalent) and copper core electrode offer excellent resistance to corrosion and wear, extending the life of the spark plug.
- **Reduced Interference:** 5 kOhm interference suppression ensures smooth operation of electronic equipment onboard.
- **Secure Connection:** Fixed SAE connector for a reliable and consistent electrical connection.
- **Precise Fit:** M14 x 1.25 thread size, 11.2mm thread length, and 3mm spark position guarantee a perfect fit for compatible engines.
- **Easy Installation:** 16mm spanner size for straightforward installation and removal.
- **Trusted Brand:** Backed by the Champion name, synonymous with quality and performance in spark plug technology.
Specifications
The Captain's Take
As a seasoned captain, I rely on dependable equipment, and the Champion Spark Plug 400 never disappoints. It delivers consistent, reliable starts and smooth running, even after extended use. The robust construction and resistance to fouling mean less maintenance and more time on the water. I highly recommend the Champion Spark Plug 400 to any boater seeking reliable performance and peace of mind.