Key Switch Fit for Farmall IH 1468 1566 1568 240 330 340 404 4100 4156 4166
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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.
Key Switch for Farmall IH
This key switch is a direct replacement ignition component for multiple Farmall and International Harvester tractors, enabling reliable start and stop function. It matches the original key type and electrical hookup for the models 1468, 1566, 1568, 240, 330, 340, 404, 4100, 4156, and 4166.
Overview
This key switch restores a dependable, keyed electrical connection for the ignition system on selected Farmall IH tractors. It is built to replace worn or broken switches on models like the 1468, 1566, and 240, keeping the machine operational. This switch is a straightforward replacement part for older International Harvester and Farmall equipment.
Built For Performance
- Key-operated cylinder with standard ignition switching contacts
- Housing designed to resist dust, moisture, and vibration
- Correct terminal arrangement for the listed Farmall and IH models
- Includes key for the matching lock
- Rugged construction for long service life in farm conditions
Fits These Machines
- for Farmall 240
- for Farmall 330
- for Farmall 340
- for Farmall 404
- for Farmall 1468
- for Farmall 1566
- for Farmall 1568
- for IH 4100
- for IH 4156
- for IH 4166
On-The-Job Use
- Used to start and stop the tractor from the operator station
- Switches power for the ignition and starter circuits during field operations
- Replaces a failed original switch without rewiring the harness
Specs At A Glance
| Part Number(s) | Key Switch (OEM replacement for listed models) |
| Type | Ignition key switch |
| Voltage | 12V DC |
| Compatible Models | Farmall 240, 330, 340, 404, 1468, 1566, 1568; IH 4100, 4156, 4166 |
Good To Know
Q: Is this the same switch that came on my Farmall 340? A: It is a replacement designed for the listed models, using the original key type and wiring points. Check that your existing switch has the same number of terminals.
Q: Can I use this on my IH 4166? A: Yes, the switch is compatible with the 4166 and other listed models, providing the same start function as the original.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.