725-06153A 725-06153 Starter Solenoid Relay for Riding Lawn Mower Fit for MTD Troy Bilt Cub Cadet XT2 ZT1 RZT Tractor and for Craftsman Zero Turn Ride Mower Replaces 532192507 582042801 435-325

What It Is

This starter solenoid relay (725-06153A / 725-06153) is the electrical switch that sends battery power to the starter motor when you turn the key. It’s designed for riding mowers and zero-turn tractors, specifically MTD, Troy-Bilt, Cub Cadet, and Craftsman models with 12V electrical systems.

Fitment & Compatibility

• Brands: MTD, Troy-Bilt, Cub Cadet (XT2, ZT1, RZT series), Craftsman zero-turn ride mowers.
• OEM replacements: Replaces Cub Cadet 725-06153A, 725-06153, MTD 532192507, 582042801, and 435-325.
• What to check:
  • Terminal layout: Two small spade terminals (S and I) + two large studs (battery and starter). Measure center-to-center spacing on large studs (~1.5 in / 38 mm) and small spade orientation. Compare to your old solenoid.
  • Mounting: Two 1/4 in bolt holes on a plastic base. Verify bolt pattern matches your mower’s bracket.
  • Voltage: 12V only. Not for 6V systems.
  • Physical size: ~2.5 x 2 x 2 in. Ensure clearance in your mower’s battery/starter area.

Key Things to Know

• Build quality: Plastic housing is durable, but the small spade terminals can corrode over time. Apply dielectric grease to prevent future issues.
• Installation difficulty: Easy (15–30 minutes). Disconnect battery first, swap wires one at a time to avoid mix-ups. No special tools needed beyond a socket wrench.
• Common gotcha: If the mower clicks but doesn’t crank, the solenoid is likely bad. If it doesn’t click at all, check battery voltage and the ignition switch first.
• Aftermarket note: This is an OEM-equivalent part, not genuine Cub Cadet. It works reliably but may have slightly different plastic molding. Fitment is identical.

Should You Buy It

Buy it if you have a dead solenoid on a Cub Cadet, MTD, Troy-Bilt, or Craftsman riding mower or zero-turn and want a cheap, direct swap. It’s not for heavy-duty commercial use, but for home/light farm use it’s a solid value. Avoid if your mower uses a different terminal layout or you need a genuine OEM part for warranty reasons.