5pcs Bosch WS7F Spark Plug Grass Cutter Chainsaw Small Engine (Copper)

Heavy duty yttrium-enhanced center electrode with copper core provides superior reliability and durability. Tapered cut nickel chromium ground electrode assists in cold weather starts and provides increased ignitability. Nickel-plated rolled threads provide anti-seize and corrosion protection. Metal glass fused resistor gives maximum interference suppression. Angular, 5-rib insulator design prevents flashover. Spark Plug. WS7F7545). NON-RESISTOR Spark Plug. Bosch Part No. 0 241235567. For Small Engines, Grass Cutters, Chainsaw. Hex Spanner Size: 3/4 19mm). Thread Size: 14mm. Thread Length: 9.5mm. Thread Pitch: 1.25mm. Factory Gap: 0.5mm 0.020". Gasket Type: Gasket Seat. Tip Configuration: Single Electrode. Electrode Size: 2.5mm. Tightening Torque: 20Nm. Tightening Angle: 90 degrees. Terminal Type: Removable Nut. Model Number Decoding WS7F): WS-14mm x 1.25mm, 19mm Thread Size x Thread Pitch, Hex Spanner Size). 7-Bosch Spark Plug Heat Range. F-9.5mm Thread Length). Cross Reference: NGK B