Mill Supply carries a variety of replacement lawn mower Honda Electric Starters and other mower parts.

Electric starter, fits models 1988-2000, TRX300EX.
FITS TRX300EX (TRX300EX)

Electric starter, fits models GXV610, 620 & 670 eng. 12V CW, 11 tooth.
FITS MODELS GXV610, 620 & 670 ENG. 12V CW, 11 TOOTH

Electric starter, fits models GX610, 620 & 670 eng. 12V CW, 11 tooth.
FITS MODELS GX610, 620 & 670 ENG. 12V CW, 11 TOOTH

Electric starter, fits model GX270 with 9.9 hp engines. 12 volt cw, 17 tooth.
USED ON 9.9 HP ENGINES FITS GX270

Electric starter, fits model TRX (1997-2000). 12 volt CCW.
FITS TRX (1997-2000)

Electric starter, fits models 1987, ATC250ES, ATC250SX, 1988-2000 TRX300, TRX3000FW. 12 volt CCW.
FITS ATC250ES/ATC250SX (1987) TRX300/TRX300FW (1988-2000)

Electric starter, fits models GX140 & GX160 with 5.5 hp engines. 12 volt, 17 tooth.
USED ON 5.5 HP ENGINES FITS GX140/GX160

Electric starter, fits models GXV270, GXV340 & GXV390. CCW, 14 tooth. Fits EMS4000A, EMS4500A, Generators, ES4500K1A, EV4000A. G300 & G400K1 engines. HT3810SA & HT3810K1SA lawn tractors. Replaces 31210-ze8-801.
FITS GXV270/GXV340 & GXV390

Electric starter, fits model GX340. (Solenoid not included)
FITS GX340

Solenoid, fits 10674
FITS 10674
Mower-parts.net carries replacement Honda Electric Starters as well as other mower parts.