NGK 6419 Spark Plug NetSuite-ID_481094 These are heavy duty inner

These are heavy duty inner filters

and 725ex series engines

Flat outer diameter: 3-5/8"

Fits Model(s): YF24-DS21-GSB

NGK 6419 Spark Plug NetSuite-ID_481094 These are heavy duty innerengineered 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