NGK 7405 Spark Plug NetSuite-ID_535160 Fits many 409777 / 40H777

Fits many 409777 / 40H777 / 40N777 / 40N877 / 40R677 / 40S877 / 40T677 / 40T876 / 40T877 / 40U777 / 40U877 / 44C677 / 44C777 / 44C877 / 44J677 / 44M777 / 44N677 / 44N777 / 44N877 / 44Q777 / 44Q977 / 44R877 / 44S677 / 44S877 / 44S977

1/2" x 49-9/16"

Agri-Fab replacement parts provide the quality and reliability you need to keep your lawn care equipment in top condition

This is a safe

For 16-18 HP and Twin Cylinder L-head engines with electronic ignitions

NGK 7405 Spark Plug NetSuite-ID_535160 Fits many 409777 / 40H777engineered 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