AM136327 Right Front Lawn Mower Deck Gauge Wheel Arms for Jo-hn Deere X300 X320 X500 X324 X340 X360 X500 X520 X530 X534 X540

What It Is

This is the right front gauge wheel arm (OEM part AM136327) for select John Deere X300 and X500 series lawn tractors. It supports the mower deck’s front right corner, preventing scalping and keeping the deck level over uneven ground.

Fitment & Compatibility

Before buying, verify:

• Models: Fits X300, X320, X500, X324, X340, X360, X500, X520, X530, X534, X540. Not compatible with X300R, X310, or older 100-series decks.
• Deck size: Designed for 48-inch and 54-inch decks (Edge, Edge X, and standard). Not for 42-inch or 62-inch decks.
• Side: Right front only. Left front is a separate part (AM136326).
• OEM vs aftermarket: This is an aftermarket replacement for OEM AM136327. Confirm your existing arm matches the pivot hole diameter (typically ½-inch) and the wheel stud spacing.
• Measurements: Arm length is roughly 7 inches from pivot center to wheel center. Check your old arm for bends or wear before ordering.

Key Things to Know

• Quality: Aftermarket steel construction is adequate, but may have slightly looser tolerances than OEM. Inspect the pivot bushing for snug fit.
• Installation: Simple bolt-on – remove the retaining clip and bolt, swap arms, reattach. No special tools needed.
• Common gotcha: The wheel itself is often sold separately. If your old wheel is worn, order a matching wheel (e.g., AM136329) at the same time.
• Durability: Cheaper than OEM, but may bend more easily if you hit a rock or stump. Avoid heavy abuse.

Should You Buy It

If you need a budget-friendly replacement for a worn or bent right front gauge wheel arm on a compatible X300 or X500 series tractor, this is a solid choice for light to medium use. For heavy-duty mowing or rocky terrain, consider OEM for better longevity.