Seat & Steering Parts

John Deere AUC13500 Complete Seat Assembly X300 X320 X340 X350 X370 X380 X500 X580

4.7/5 (46 reviews)
$210.33
John Deere AUC13500 Complete Seat Assembly X300 X320 X340 X350 X370 X380 X500 X580
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What It Is

The John Deere AUC13500 Complete Seat Assembly is a factory direct replacement seat designed for select X300 and X500 Series lawn tractors. It provides a comfortable, ergonomic operator position for residential mowing, snow removal, or light-duty grounds care.

Fitment & Compatibility

This seat fits specific John Deere models only: X300, X320, X340, X350, X370, X380, X500, X580. It does not fit X300R, X350R, or X500R variants, nor any X700, X900 Series, or older LX/GT models. Before buying, verify your machine’s model number (found on the frame under the hood or near the battery). Measure the mounting hole pattern: it uses a 4-bolt pattern with 8.5” x 5.5” spacing. If your tractor has a different pattern (e.g., X300R uses a 2-bolt design), this seat will not bolt on without modification. This is a genuine John Deere part, not aftermarket, so you can expect exact dimensions and color match.

Key Things to Know

  • Build quality: Genuine John Deere foam and vinyl are durable and UV-resistant; aftermarket copies often sag or crack within a season.
  • Installation difficulty: Easy—remove four bolts (usually 7/16” or 1/2” wrench), swap the seat, and reuse your original seat switch bracket if needed. Most installs take 15–30 minutes.
  • Common gotcha: The seat does not include the seat switch or its wiring harness. You must transfer the safety switch from your old seat or buy it separately (part number AUC13501). Without it, the tractor won’t start.
  • Comfort note: This seat has basic foam padding—not a high-back or suspension seat. If you need more support for long mowing sessions, consider a premium aftermarket option.

Should You Buy It

Buy it if you own one of the listed X300/X500 Series tractors and want a direct, hassle-free replacement that matches the original fit, color, and safety switch location. It’s ideal for restoring comfort and safety on a worn or torn factory seat. Skip it if your tractor isn’t on the fitment list, you need a suspension seat, or you’re on a tight budget—aftermarket seats can cost half as much.

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