NGK Spark Plug Stock # 3481

The NGK Spark Plug Stock # 3481 is a standard resistor spark plug designed for dependable ignition in a variety of small engines and compact automotive applications. Manufactured by NGK, a leader in spark plug technology, this plug ensures reliable cold-start performance and combustion efficiency in diverse operating conditions. It is an ideal choice for maintaining lawn equipment, generators, ATVs, and entry-level passenger vehicles.

This spark plug features a 12 mm thread diameter and a 0.749-inch reach with a gasket seat design, ensuring a precise fit into factory engine heads without the need for modifications. The resistor construction effectively suppresses radio frequency interference (RFI) and electrical noise, safeguarding sensitive engine management systems and fuel injection controllers from electromagnetic interference. NGK's high-quality ceramic insulator and nickel-alloy electrodes contribute to a long service life and stable electrode gap retention, enhancing combustion efficiency.

Technicians and equipment owners rely on NGK plugs for their durability and cost-effectiveness during routine maintenance and seasonal service intervals. Installation is straightforward: simply remove the old plug, check the gap if necessary, and hand-thread the new unit into the cylinder head before applying final torque. This single plug is a reliable OEM-quality replacement that meets strict factory specifications.