117-1197 Starter Solenoid Relay for Lawn Mower, 12V Relay Switch, Fit for Exmark Toro Timecutter SS5000 SS4225 SS4235 Z4200 Zero Turn Lawn Mower, Replace 784-1221-210, 104-3189, E513075, 28-4210

What It Is

This is a 12V starter solenoid relay that acts as an electrical switch, sending battery power to the starter motor when you turn the key. It’s designed for zero-turn mowers, specifically Exmark and Toro TimeCutter/ZT models, and replaces several OEM part numbers.

Fitment & Compatibility

Before buying, check your mower’s model number, not just brand or deck size. This solenoid fits:

• Toro TimeCutter models: SS5000, SS4225, SS4235, Z4200 (and similar ZT series)
• Exmark zero-turn mowers using the same relay system
• OEM cross-references: 784-1221-210, 104-3189, E513075, 28-4210

What to verify: Measure the mounting hole spacing (center-to-center) – should be about 1.75 inches. Also confirm your mower uses a 12V system and has two small spade terminals plus two larger stud terminals. If your mower uses a different bolt pattern or three-terminal relay, this won’t work.

Key Things to Know

• Quality: Aftermarket part at a budget price. Some users report slightly thinner metal housing vs OEM, but it typically works fine for intermittent start duty.
• Installation difficulty: Easy – swap is 10-15 minutes. Disconnect battery negative first, remove two small wires from spade terminals, then two large battery/starter cables from studs. Reverse order.
• Common gotcha: If your mower clicks but doesn’t crank, the solenoid is likely bad. If it cranks slowly, check battery voltage and cable connections first – a weak battery can mimic solenoid failure.
• No mounting bracket included: The solenoid itself mounts directly to the mower frame using existing bolts. Verify your mower’s mounting holes align.

Should You Buy It

If your Toro TimeCutter or Exmark zero-turn won’t start and you’ve confirmed the solenoid is the issue (clicking relay, no crank), this is a solid, inexpensive fix. It’s not built for heavy commercial use, but for homeowners or light-duty mowing, it does the job. Skip it if you need OEM reliability for daily commercial mowing.