NGK Spark Plug Stock # 2305

The NGK Spark Plug Stock # 2305 is a premium resistor-type spark plug engineered for reliable engine ignition across a wide range of automotive applications. Designed by NGK, a trusted leader in spark plug manufacturing for over 80 years, this spark plug delivers consistent performance in both standard and high-demand engines. Whether you're performing routine maintenance or rebuilding an engine, the CR9EKB replaces worn plugs that compromise fuel efficiency and cold-start reliability.

This NGK spark plug features a 10 mm threaded connection with a 0.749-inch reach and gasket seat design, ensuring proper fitment and seal in compatible engine heads. The resistor element suppresses radio frequency interference (RFI), protecting vehicle electronics and reducing electromagnetic noise that can degrade dash displays and audio systems. NGK's precision electrode gap and ceramic insulator construction maximize spark intensity while maintaining thermal stability across wide temperature ranges, extending plug lifespan and improving combustion efficiency.

Mechanics and DIY enthusiasts choose NGK spark plugs for their durability and consistent OEM-equivalent performance. This Stock # 2305 plug is ideal for light-duty trucks, sedans, and compact vehicles requiring standard-heat-range plugs. Installation is straightforward—verify thread size and reach against your engine's specifications, set gap if required, and torque to manufacturer spec. For best results, replace all plugs as a complete set every 30,000–100,000 miles depending on driving conditions and engine type.