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SKU:
NLT1G02579
Ships for free in 2–4 business days.
Kubota M-Series Safety Interlock Switch
$39.99
In Stock
$39.99
Sale price
$39.99
Regular price
This new aftermarket safety interlock switch fits the compatible Kubota M-Series tractor applications listed below when the connector, actuator, mounting, and original switch match.
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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
- Kubota M108 variants using the matching switch
- Kubota M4-071HDCC12
- Kubota M5040DT and related M5040 variants after switch comparison
- Kubota M5-091 and M5-111 variants
- Kubota M5140DT, M5140HD and related M5140 variants
Product Overview
A tractor that will not crank even with a charged battery may have an open clutch, neutral, range, seat, or PTO interlock. The correct step is to test the switch and circuit—not to bypass it—because the same symptom can come from adjustment, linkage, wiring, relays, or another interlock.
The switch confirms a safe operating position before the starting or operating circuit is enabled. Its physical actuator and normally open or normally closed logic must match the original.
No verified replacement number is provided in the source listing, so compare the removed switch, connector pins, mounting holes, actuator length, circuit logic, model suffix, and serial number before ordering.
Key Features & Performance
- Position-sensing switch for a tractor safety circuit
- Replacement actuator and connector layout for matching applications
- Restores interlock function when the original switch is electrically failed
- Supports safe starting logic without bypassing the circuit
Common Uses
- Repairing a confirmed open safety switch
- Replacing a cracked or corroded interlock switch
- Correcting a no-crank caused by failed switch contacts
Technical Specifications
- Product Type: Tractor safety interlock switch
- Circuit: Verify clutch, neutral, seat, range, or PTO location
- Brand Compatibility: Kubota M-Series
- Condition: New aftermarket replacement
Installation & Fitment
- Identify which interlock circuit is being serviced
- Disconnect the battery and secure the tractor
- Test original switch continuity and adjustment
- Match connector and actuator before installation
- Verify the tractor cannot start or engage outside safe conditions
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 I bypass this switch to make the tractor start? A: No. Bypassing a safety interlock can allow unexpected movement or PTO operation. Diagnose and repair the circuit.
Q: How do I know which safety switch failed? A: Use the wiring diagram and continuity or voltage tests at each interlock; do not choose by symptom alone.
Q: Why is no part number listed? A: The source listing does not provide a verified number, so physical and electrical comparison is especially important.
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: Kubota M-Series safety switch, M5040 no crank interlock, M5-111 neutral safety switch, M5140 tractor will not start, Kubota safety circuit replacement
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.