NGK 6509 Spark Plug NetSuite-ID_667805 Measures 1/2" x 39-1/2"

Measures 1/2" x 39-1/2"

Fits Tecumseh models HM80 and HM100

1/2" x 162"

325" pitch small 7 spline (SM7) rim sprocket

NGK 6509 Spark Plug NetSuite-ID_667805 Measures 1/2" x 39-1/2"engineered 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