TRAC SEATS Yellow Seat for John Deere X300 X300R X304 X320 X324 X340 X350 X350R X354 X360 X370 X380 X384 X390 X394 AM136044 AUC11188 AUC13500

What It Is

This is a direct-replacement aftermarket seat for John Deere X300-series lawn tractors, designed to replace worn or damaged OEM seats with a durable, yellow-padded unit. It fits models from the X300 through X394, including select X350R and X354 variants.

Fitment & Compatibility

• OEM Replacements: Fits John Deere part numbers AM136044, AUC11188, and AUC13500.
• Model Check: Confirmed for X300, X300R, X304, X320, X324, X340, X350, X350R, X354, X360, X370, X380, X384, X390, and X394.
• Measurements: Seat pan width is roughly 16 inches; overall height about 14 inches. Verify your mounting hole pattern—most X300-series use a 4-bolt pattern (8.5 x 6.5 inches center-to-center).
• Deck Size: Works with any deck size on these models; seat is independent of mower deck.
• Aftermarket Note: Not OEM John Deere, but matches factory color and bolt pattern. Avoid if you need exact OEM branding or a specific foam density.

Key Things to Know

• Quality: Users report good padding and a firm, supportive ride—comparable to OEM. The yellow vinyl is UV-resistant and cleans easily.
• Installation: Simple bolt-on swap. Requires a 1/2-inch socket or wrench to remove 4 bolts. No wiring or seat switch modifications needed for most models (check if you have a safety switch under the old seat).
• Common Gotcha: Some models (e.g., X350R) may have a seat switch bracket that needs transferring from your old seat. Keep your original hardware.
• Durability: Holds up well in sun and rain; a few users note minor color fading after 2+ years outdoors.

Should You Buy It

Yes, if you need a comfortable, affordable replacement for a worn John Deere X300-series seat and want a direct fit without modifications. It’s ideal for DIY repairs, budget-conscious owners, or anyone tired of a sagging or cracked original seat. Skip it if you require OEM parts for warranty or resale value.