Skip to product information
SKU:
NLT1G00734
Ships for free in 2–4 business days.
Massey Ferguson Tractor Ignition Switch 1874535M3
$24.99
In Stock
$24.99
Sale price
$24.99
Regular price
This new aftermarket starter and heat ignition switch replaces Massey Ferguson 1874535M3 and related references for compatible utility tractors, industrial machines, and combines.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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 231, 240, 250, 253, 270, 282, 283 and 290
- Massey Ferguson 298, 360, 375, 383, 390 and 398 where 1874535M3 is specified
- Massey Ferguson 3050, 3060, 3070 and 3090 applications using this switch
- Massey Ferguson industrial 20D, 20F, 30E, 30H, 40E, 50E, 50F, 50H and 60H
- Massey Ferguson 750, 760, 850, 855, 860 and 865 combines with matching serial range
Product Overview
Years of key wear can leave a tractor with vague detents, unreliable heating, or no starter signal even though the battery is charged. Before replacing the switch, test the starter relay, neutral circuit, wiring, and cold-start equipment.
The switch controls keyed electrical power and the start and heat functions provided by the original tractor circuit. The terminal layout is more important than the outside appearance.
Match 1874535M3, the rear terminal count and markings, bezel, key positions, model, serial number, and any production split. Photograph the old wiring before moving a single lead.
Key Features & Performance
- Starter and cold-start heat switching in one keyed control
- Multi-terminal rear layout for compatible Massey Ferguson wiring
- Replacement for mechanical key wear or burnt contacts
- Works with the original safety and starting circuits when correctly wired
Replaces Part Numbers
- 1874535M3
- 1097239M91
- 1690093M91
- 18741230M93
Common Uses
- Restoring a missing starter command
- Replacing a switch with unreliable heat position
- Repairing a key barrel damaged by age or attempted theft
Technical Specifications
- Product Type: Ignition / starter and heat switch
- Equipment: Compatible Massey Ferguson tractors, industrial machines and combines
- Primary Reference: 1874535M3
- Condition: New aftermarket replacement
Installation & Fitment
- Disconnect battery power
- Create a wire-by-wire photo and label record
- Compare terminal letters before installation
- Inspect terminals for heat and looseness
- Test heat, start, run, shutdown, and neutral protection
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Can this fix a tractor that will not crank? A: Only when voltage testing shows the switch is not sending the start command.
Q: Does it fit every Massey Ferguson 240? A: No. Production date and wiring variations require part-number and terminal verification.
Q: What is the heat position for? A: On equipped diesel tractors it powers the original cold-start or thermostart circuit.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Massey Ferguson 1874535M3 ignition switch, MF 240 starter heat switch, MF 290 no crank key switch, 1097239M91 replacement, Massey tractor key switch wiring
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.