14 Teeth Starter Motor Compatible with Briggs and Stratton Cub Cadet 14.5 16 16.5 17 17.5 18 18.5 HP John Deere New Holland Toro Steel Gear 593934 693552 5932N 693551 LG693551 BS693551

What It Is

This is a 14-tooth steel gear starter motor designed to replace failed starters on riding lawn mowers and garden tractors. It’s intended for engines in the 14.5–18.5 HP range, commonly found on Cub Cadet, John Deere, New Holland, and Toro models.

Fitment & Compatibility

Before buying, verify these three things:

• Engine brand & model: This starter is compatible with Briggs & Stratton single-cylinder engines (typically Vanguard, Intek, or Endurance series) producing 14.5–18.5 HP. It will not work on Kohler, Kawasaki, or Honda engines unless specifically cross-referenced.
• OEM part numbers: Replaces Briggs & Stratton 593934, 693552, 5932N, 693551, LG693551, and BS693551. If your original part number isn’t listed, measure the mounting bolt spacing (typically 3.5” center-to-center) and gear diameter — the 14-tooth gear must match your flywheel ring gear.
• Physical dimensions: The starter body is roughly 5.5” long with a 1.5” diameter. Check that the mounting flange aligns with your engine block and that the starter nose clears the frame or deck.

Not compatible with zero-turn mowers or engines requiring a 9-tooth or 11-tooth starter gear.

Key Things to Know

• Quality: Steel gear is more durable than plastic, but this is an aftermarket part. Some users report occasional fitment issues (slightly tight or loose mounting holes). Expect it to last 2–4 seasons under normal use.
• Installation difficulty: Moderate. You’ll need basic hand tools (socket set, maybe a ratchet strap to hold the starter in place). Disconnect the battery first. The hardest part is often reaching the bolts on tight tractor frames.
• Common gotchas:
  • The starter may require shimming (using washers) to align the gear with the flywheel ring gear. If it grinds or doesn’t engage, check gear mesh depth.
  • Some units ship with a loose solenoid wire — tighten it before installing.
  • If your old starter had a different wiring harness (e.g., spade vs. ring terminals), you may need to splice or adapt.
• Warranty: Usually 1-year limited. Keep your receipt and original packaging.

Should You Buy It

This is a solid budget-friendly replacement for a dead OEM starter on common Briggs-powered tractors, especially if you’re comfortable with basic mechanical work. Skip it if you need a perfect drop-in fit with zero adjustments, or if your engine uses a different gear count. For the price, it’s worth trying if your old starter is beyond repair.