NGK Spark Plug Stock # 3230

The NGK Spark Plug Stock # 3230 is a premium ignition component engineered for small-engine applications requiring reliable, consistent spark generation. Designed as a drop-in replacement for both maintenance schedules and performance upgrades, this resistor spark plug delivers the dependable cold-start and steady-state firing performance that engine builders and equipment operators expect from NGK's proven ignition technology. Whether you operate small lawn equipment, portable generators, or compact utility engines, a quality spark plug is the foundation of efficient combustion and long engine life.

This NGK spark plug features a standard 14 mm thread diameter with a 0.749-inch reach and gasket seat design, ensuring secure, leak-free installation in OEM and aftermarket cylinder heads. The built-in resistor element suppresses radio frequency interference (RFI), protecting nearby electronics and reducing electromagnetic noise without sacrificing spark intensity. The compact dimensions (1 × 0.95 × 3.45 inches) and lightweight construction (0.13 lbs) make handling and installation straightforward, while NGK's quality-controlled ceramic insulator and nickel-plated steel shell provide durability across a wide temperature range and operating envelope.

Mechanics, fleet managers, and DIY enthusiasts rely on the NGK BR9EG specification when exact OEM fitment and long-term reliability are non-negotiable. Installation is straightforward—simply verify thread pitch and reach against your engine's spark plug well, apply anti-seize compound if recommended by your equipment manual, and torque to manufacturer specification (typically 18–21 foot-pounds for most small-engine applications). Keep a spare on hand for seasonal equipment startup or routine maintenance intervals; NGK's reputation for consistency ensures you'll achieve the ignition performance your engine was designed for.