The John Deere AT195302 Master Key – For the Serious Gear

If you're operating a John Deere dozer, loader, or even a massive cotton picker, the AT195302 ignition key is the one you want in your pocket. This is the heavy-duty counterpart to the lighter mower keys, designed to stand up to the vibration and dust of a real job site.

Why You Need This (Aside from Not Looking Like a Rookie)

• The "Big Rig" Standard: Fits a massive range of JD Industrial, Construction, and Agricultural equipment.
• Premium Grip: Features the comfortable plastic head (unlike the old-school flat metal ones) so you can actually turn it with gloves on.
• Bulletproof Reliability: Precision cut to ensure you aren't wiggling the key for ten minutes just to get the heater going.

Compatible Equipment

The AT195302 is the primary ignition key for a staggering list of John Deere machines, including:

• Construction: Backhoes (310, 410 series), Dozers (450H, 550, 650 series), and Wheel Loaders (444, 544, 644 series).
• Agricultural: Cotton Pickers (9900 series), Tractors, and Sprayers.
• Forestry: Many JD Skidders and Feller Bunchers.
• Gators & Utility: Fits many older AMT and 6x4 Gator models.

Technical Specs

• Part Number: AT195302 (Interchangeable with AR51481, AT145929)
• Key Code: JD JP8 Profile
• Design: Durable Plastic Head with Steel Blade
• Application: Rotary Ignition Switches

Note: This key does NOT fit most JD Skid Steers or full-sized Excavators (those usually take the H800). Double-check your profile!