Ngk Spark Plug Stock 5422

The NGK Spark Plug Stock 5422 is a reliable, OEM-equivalent spark plug designed for dependable ignition performance in a variety of small to mid-sized engines. It is ideal for users who require consistent cold starts, stable idle, and improved fuel efficiency. This spark plug serves as a drop-in replacement for both original equipment and aftermarket applications.

Featuring a 14mm thread diameter and a reach of 19 mm, this spark plug ensures proper installation and secure sealing in standard spark plug housings. The integrated resistor suppresses electromagnetic interference, reducing noise on ignition systems while protecting sensitive electronics commonly found in modern small engines and vehicles. NGK's proprietary manufacturing process guarantees consistent electrode geometry and gap tolerance, resulting in reliable spark generation across varying RPM ranges and load conditions.

Ideal for technicians, equipment owners, and DIY mechanics, the NGK Spark Plug Stock 5422 is compatible with a wide range of engines that require BR8ES or equivalent plugs. Installation is straightforward—simply remove the old spark plug, check the gap (pre-set at manufacturer standard), and thread the new plug into place with finger pressure before tightening.