OEM PTO Switch John Deere X 300 304 310 324 340 360 500 520 530 540 590 AM135131

What It Is

This is the OEM PTO (Power Take-Off) switch for John Deere X300, X304, X310, X324, X340, X360, and 500–590 series lawn tractors (part number AM135131). It controls engagement of the electric clutch for mower deck or other PTO-driven attachments.

Fitment & Compatibility

Before buying, verify:

• Model number: Fits X300, X304, X310, X324, X340, X360, plus 500, 520, 530, 540, 590 series. Check your tractor’s model tag under the seat or on the frame.
• Deck size: Works with 42", 48", and 54" decks on these tractors (no deck-size limitation).
• OEM vs aftermarket: This is genuine John Deere part AM135131. Aftermarket switches may have different pin configurations or lower amp ratings—measure your existing switch’s terminal layout if replacing a non-OEM part.
• Physical check: Ensure the switch housing dimensions match your dash cutout (approx. 1.5" x 1.0"). The connector is a 4-pin flat plug; verify your harness connector matches.

Key Things to Know

• Quality: OEM construction with robust internal contacts. Aftermarket switches often fail faster due to lower-quality springs or contacts.
• Installation difficulty: Moderate (30–60 minutes). Requires removing the dash panel or console. Disconnect battery negative first.
• Common gotcha: The switch is often misdiagnosed. Test the PTO clutch, wiring, and safety switches before replacing—a burned clutch coil or bad relay can mimic a bad switch.
• Fitment note: Will not fit older 300/400 series (pre-2005) or 700 series tractors—those use different switches.

Should You Buy It

Yes, if you own a compatible John Deere and want a drop-in, reliable replacement that matches factory specs. Skip it if you have an older model or want to save money with an aftermarket brand—but expect shorter lifespan and possible connector mismatch.