Replacement Battery Mounting Bracket Kit M83518，M89185 Fits John Deere 140 200 300 312 314 316 317 318 322 330 332 400 420 Garden and Lawn Mower Tractors

What It Is

This is a replacement battery mounting bracket kit (M83518, M89185) designed to secure the battery in place on John Deere 140, 200, 300, 312, 314, 316, 317, 318, 322, 330, 332, 400, and 420 series garden and lawn tractors. It prevents battery movement during operation, reducing vibration damage and electrical connection issues.

Fitment & Compatibility

• Models: Fits John Deere 140, 200, 300, 312, 314, 316, 317, 318, 322, 330, 332, 400, 420 (gas and diesel). Does not fit newer X-series or 500+ series.
• OEM cross-reference: Replaces OEM parts M83518 and M89185. Verify your existing bracket part number matches.
• Physical check: Measure your battery tray width – this kit fits standard Group U1 batteries (roughly 7.75" x 5.25"). If you’ve upgraded to a larger battery, this bracket may not fit.
• Hardware included: Kit includes the hold-down rod, J-bolts, wing nuts, and washers. No extra hardware needed for standard installations.

Key Things to Know

• Build quality: The rod is zinc-plated steel – adequate but not heavy-duty. Some users report the J-bolts can bend if overtightened. Hand-tighten wing nuts only.
• Installation difficulty: Easy – 10 minutes with basic hand tools. No drilling or modifications required on compatible models.
• Common gotcha: The rod length is fixed. If your battery posts are taller than standard (e.g., some deep-cycle batteries), the rod may not reach the J-bolt slots. Check battery height before buying.
• Replacement vs OEM: This aftermarket kit costs about half of the John Deere OEM part. It fits correctly but uses thinner gauge metal – fine for occasional use, less ideal for rough terrain.

Should You Buy It

Buy this if you own a compatible older John Deere tractor and need a cheap, functional replacement for a missing or rusted-out battery bracket. It’s a good budget option for light-duty mowing. Skip it if you want heavy-duty durability for commercial use or have a non-standard battery – the OEM bracket is sturdier and more adjustable.