NGK 3971 Spark Plug NetSuite-ID_490363 Dura-Bore cast iron cylinder sleeve

Dura-Bore cast iron cylinder sleeve for extended life

vertical OHV engines

Increases the longevity of internal parts

Measures 5/8" x 29-3/16"

manufactured and tested to help deliver optimum performance in Briggs and Stratton engines

NGK 3971 Spark Plug NetSuite-ID_490363 Dura-Bore cast iron cylinder sleeveengineered specifically for lawn mowers, chainsaws, trimmers, and other outdoor machinery, these spark plugs deliver exceptional performance and reliability. Many parts look similar, so its crucial to ensure youre choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement. Trivalent metal plating provides superior anti corrosion and anti seizing