Replaces Honda GX390 ignition switch box,Honda GX340 ignition switch box, Honda GX270 ignition switch box and Honda GX240 ignition switch box 31610-ZE3-812ZB 31610ZE3812ZB. Come together with 2 mounting bolts and 1 pcs spark plug for the need of regular maintenance. Replaces Honda 13hp ignition switch box, Honda 11hp ignition switch box, Honda 8hp 9hp ignition switch box for Honda GX240 GX270 GX340 GX390 GX420 240cc 270cc 274cc 337cc 338cc 340cc 389cc 390cc 420cc 8hp 9hp 11hp 13hp 16hp engine and power equipment. This GX390 ignition key switch box fits many power equipments with Honda GX 390 GX 340 GX 270 GX 240 GX 420 engines, including WT30 WT40 series water pumps, air compressor, 3800 psi, 4000 psi, 4200 psi, 4400 psi pressure washers,log splittesr, chipper shredders, compactors and many others, including brands Simpson, Dewalt, Northstar, Mi-T-M, BE Powerease, RedGum, Excell and many more. This GX340 ignition switch with key is not poor quality ignition control box purely for aftermarkert. It is used on massive production by many small engine manufacturers High quality ignition control box for Honda GX390 GX340 GX270 GX240 GX390T GX340T GX270T GX240T GX390UT2 GX340UT2 GX270UT2 GX240UT2 engine. Replaces Honda 390 ignition switch box, Honda 340 ignition switch box, Honda 270 ignition switch box, Honda 240 ignition switch box for GX240 GX270 GX340 GX390 240cm3 242cm3 270cm3 274cm3 389cm3 390cm3 420cm3 8 horse power 9 horses power 11 horsepower 13 horse power 16 horsepower engine,water pump, snowblower, pressure washer and many other power equipment with the mentioned engines. It also fits Harbor Freight Predator 420cc engine, Champion 389cc 420cc 439cc engine and Generac 420cc engine. Come with 1 pcs spark plug for regular maintenance.This ignition key switch box also fits Ducar 389cc 13hp engine,Carroll Stream Rhino CS188ESB 13hp 389cc engine and many others Honda clone engine