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SKU:
NLT2J01171
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Ignition Key Switch 1874535M3 for Massey Ferguson Tractors
$26.99
In Stock
$26.99
Sale price
$26.99
Regular price
This aftermarket six-terminal ignition key switch with two keys replaces 1874535M3 on compatible Massey Ferguson tractors.
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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.
Compatible equipment / model
- Massey Ferguson 230
- Massey Ferguson 231 and 231S
- Massey Ferguson 235
- Massey Ferguson 240, 240P, and 240S
- Massey Ferguson 243
- Massey Ferguson 250
- Massey Ferguson 253
- Massey Ferguson 255
Product Overview
If the key jams, spins without a firm position, or only starts the tractor when it is held or wiggled, the switch may be worn internally. Electrical contact failure can also leave the starter or key-controlled accessories without power.
This switch gives the operator a fresh lock and electrical contact assembly. It includes two keys, but the six terminals and original part number still need to match the tractor wiring.
Key Features & Performance
- Six-spade ignition switch for matching Massey Ferguson wiring
- Includes two keys
- Restores positive key positions and electrical contact
- Useful after physical lock wear, damaged terminals, or intermittent operation
- Aftermarket replacement for 1874535M3
Replaces Part Numbers
- 1874535M3
- 3107556R92
- 3107556R93
- 1874535V3
Common Uses
- Replacing a key that will not turn cleanly
- Repairing intermittent no-crank operation at the switch
- Restoring key-controlled electrical power
- Replacing a switch damaged by corrosion or a broken key
Technical Specifications
- Part Type: Ignition Key Switch
- Terminal Count: 6 spade terminals
- Included: Two keys
- Application: Tractor starting/electrical control
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the battery
- Label each wire before removing it
- Compare the terminal lettering and clocking
- Secure the switch without twisting the wiring
- Test OFF, RUN, accessory, and START functions
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Massey Ferguson used different switches across related tractors. Match 1874535M3, the six-terminal pattern, mounting diameter, and key positions.
Frequently Asked Questions
Q: Can a bad ignition switch cause intermittent starting? A: Yes. Worn contacts can fail to send power to the starter control circuit or key-on systems.
Q: Does it include keys? A: Yes, two keys are included.
Q: Will it fit every Massey Ferguson 240? A: Verify the original part number and all terminal positions because production configurations can differ.
Q: Is it a genuine AGCO/Massey Ferguson part? A: No. This is an aftermarket replacement.
Part Summary
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Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.