401 Spark Plug

The Champion Plugs 401 Spark Plug is a reliable ignition component designed specifically for small-displacement engines and lawn equipment. It excels in applications where dependable cold-start performance and consistent combustion are essential. Whether you're working on a vintage go-kart engine or maintaining small single-cylinder motors, this spark plug is engineered to meet demanding performance standards.

This spark plug features precise heat range calibration, which is critical for managing combustion in smaller, higher-RPM applications. Its design includes a copper core for reliable electrical conductivity and a ceramic insulator that ensures stable ionization under varying load conditions. This combination helps prevent fouling and carbon buildup, enhancing the longevity and performance of your engine.

Mechanics and enthusiasts will appreciate the 401's compatibility with standard spark plug wells and electrode gaps commonly found in utility engines. Its lightweight design at just 0.09 lbs allows for easy integration into tight engine bays, making it an excellent choice for those focused on performance tuning and maintenance. The Champion Plugs 401 Spark Plug is a cost-effective solution for anyone looking to maintain their small engine equipment.