
Exmark builds the Quest S-Series for homeowners who want a commercial-style cut, and it uses Exmark's own 708 cc V-twin rather than an outside engine. That engine's starter is a 10-tooth counter-clockwise unit, which is what this listing covers.
The S-Series is sold with a 50-inch or a 60-inch fabricated deck, dual Hydro-Gear transmissions and a foot-assist deck lift. The engine and the starter boss are the same across both deck widths, so deck size does not change the fit.
The motor is a permanent-magnet direct drive. Copper stator and rotor, plated steel barrel, sealed bearing at the drive end. No reduction gearset and no field coil.
Two-bolt flange, 8 mm holes, pilot spigot. It mounts on the engine boss with the original hardware.
Diagnosis first: one click and no crank points at the solenoid; a motor that drags or heats up points here; a motor that does nothing at all with a fresh battery can still be the ground strap. Check all three before you spend money.
Clean the battery terminals, the ground at the frame and the solenoid studs. Exmark mounts the engine on isolators, so the ground strap is the only path back to the battery.
Crank in bursts of ten to fifteen seconds and let the motor rest between attempts. It is an intermittent-duty part.
Fitment is listed for the Quest S-Series only. The Quest E-Series uses a smaller deck and, in some model years, a different engine; the two are not interchangeable on the starter.
We do not publish torque, current draw or no-load speed for this motor. The listing gives voltage, power, teeth, rotation and flange, which is what you can actually check against the part in your hand.
Sold as the motor alone. Keep your solenoid, your relay and your heat shield, and check the ring gear for burring while the motor is off.
Stock lead time 15 to 30 days, minimum one piece, twelve-month replacement warranty on windings and bearing.
| Brand | Model | Model Code | Year |
|---|---|---|---|
| Exmark | Exmark Quest S-Series | QUEST-S | 2017 |