HECASA Lawn Mower Seat Compatible with John Deere X300 X300R X304 X310 X320 X324 X340 X360 X500 X520 X530 Tractor Riding Mower Seat Replacement for AM136044 Yellow+Black Plastic

What It Is

The HECASA AM136044 replacement seat is an aftermarket upgrade for select John Deere X300, X500, and X500R series lawn tractors. It’s designed for residential mowing and light-duty yard work, offering a yellow-and-black plastic shell with basic cushioning.

Fitment & Compatibility

Before buying, confirm your model: this seat fits John Deere X300, X300R, X304, X310, X320, X324, X340, X360, X500, X520, and X530 tractors. It replaces OEM part AM136044. Measure your existing seat mounting holes (center-to-center) – this seat uses a standard 4-bolt pattern, but verify spacing (typically 6.5” x 8.5” on these models). Check deck size isn’t a factor; seat fitment is independent of deck width. Ensure your tractor has a flat floor pan – some older models may require adapter brackets (not included). If your original seat has a suspension base, this seat does not include one; it’s a direct shell replacement only.

Key Things to Know

• Quality: Plastic shell feels less rugged than OEM John Deere; may flex under heavier users (over 250 lbs). Cushion is firm but thin – not ideal for long mowing sessions.
• Installation: Simple bolt-on swap using four bolts (tools: 13mm socket/wrench). No wiring or modifications needed. Takes 15-30 minutes.
• Common Gotchas: Hole alignment can be slightly off on some models – you may need to ream holes slightly. Seat does not include a seat switch; if your tractor has a safety switch, you’ll need to transfer it from your old seat.
• Warranty: HECASA offers limited warranty; check seller’s return policy before purchase.

Should You Buy It

If you need a budget-friendly, direct replacement for a worn-out or broken seat on a compatible John Deere tractor and don’t require premium comfort or heavy-duty use, this HECASA seat works. It’s a fine stopgap for occasional mowing, but skip it if you mow for hours daily or want OEM-grade durability.