NGK Spark Plug Stock # 5798

The NGK Spark Plug Stock #5798 (BR2-LM) is a resistor-equipped standard spark plug designed for reliable ignition in small engines, lawnmowers, chainsaws, and outdoor power equipment. This 14mm threaded plug delivers consistent spark performance with a 0.370-inch reach and gasket seat design, making it a direct replacement for original equipment specifications across a wide range of applications.

The resistor design suppresses electromagnetic interference, reducing radio frequency noise and protecting sensitive electronic components in modern engines. The 14mm thread diameter with gasket seat ensures a secure, leak-free installation and proper heat dissipation. The 0.370-inch reach specification is critical—incorrect reach can cause fouling, poor combustion, or electrode damage. NGK spark plugs are manufactured to exacting OEM standards and are recognized across the small-engine and outdoor power equipment industry for consistent firing and longevity in demanding conditions.

This plug serves homeowners, landscapers, and equipment technicians who require OEM-equivalent spark plugs for routine maintenance and replacement. Whether maintaining a push mower, string trimmer, portable generator, or small utility engine, the BR2-LM provides the exact fitment and performance characteristics the original engine design demands. Purchase with confidence knowing that NGK's quality control and widespread OEM adoption mean reliable starts and smooth operation.

Sold individually, this spark plug is a consumable component—keep spares on hand for seasonal equipment maintenance and to minimize downtime during the busy mowing and landscaping season.