Ignition Key Switch AT21880 for John Deere Tractor 400 440 300 350 380 540 480
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Ignition Key Switch for John Deere
This ignition key switch for John Deere tractors is a direct replacement part that controls the electrical power to the starter and ignition system, allowing the tractor to start and run reliably. It is designed to fit multiple John Deere models including the 400, 440, 300, 350, 380, 540, and 480, and cross-references OEM part number AT21880.
Overview
This ignition key switch for John Deere tractors is a durable electrical component that replaces a failed switch, restoring proper starting function. It is a service part for a range of John Deere utility and compact tractors. This switch for John Deere provides a secure and reliable way to power up the machine's electrical system.
Built For Performance
- Includes two keys for operational convenience
- Direct replacement design for a straightforward installation
- Durable construction withstands harsh operating conditions
- Ensures positive electrical contact for reliable starting
- Built to OEM specifications for a correct fit
Fits These Machines
- for John Deere 300
- for John Deere 350
- for John Deere 380
- for John Deere 400
- for John Deere 440
- for John Deere 480
- for John Deere 540
On-The-Job Use
- Start and shut down the tractor engine during daily operation
- Operate the tractor's electrical accessories while working
- Provide an ignition cut-off for maintenance and safety procedures
Specs At A Glance
| Part Number(s) | AT21880 |
| Type | Ignition Key Switch |
| Compatible Brands | John Deere |
Good To Know
Q: Does this switch include new keys? A: Yes, this ignition key switch includes two new keys that are cut to fit the included lock cylinder.
Q: What if my tractor is not on the fitment list? A: The switch is designed for the models listed, but variations can occur. Check your machine's serial number or compare measurements to ensure a correct fit.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.