6-Terminal Magneto Ignition Switch 430-770 for MTD Scag Exmark Snapper Husqvarna
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.
- Exmark Turf Tracer Hydro
- Husqvarna WH4817EFQ
- Husqvarna WH5319EFQ
- Scag Cougar
- Scag Cheetah
- Scag Tiger Cat
- Scag Tiger Cub
- Scag Sabre Tooth Tiger
- Scag Super Z
- Scag Turf Tiger
- Scag V-Ride
- Scag Wildcat
- Wright 48-inch Stander
- Wright 52-inch Stander
- Wright 61-inch Stander
- MTD mowers with Briggs & Stratton OHV engines, 1999 and newer, excluding auto-drive step-through frames
Product Overview
A mower that will not crank, will not shut off, or loses power when the key is moved may have an ignition-switch fault—but the battery, fuse, safety interlocks, and harness need to be checked first.
This 430-770-style magneto switch has three positions, six terminals, and a 5/8-inch threaded mounting stem. Terminal letters and magneto circuit must match; a battery-ignition switch that looks similar is not a safe substitute.
Key Features & Performance
- Three-position key control
- Six-terminal magneto circuit
- 5/8-inch threaded mounting stem
- Cross-references MTD, Snapper, Simplicity, and Husqvarna numbers
- New aftermarket switch
Replaces Part Numbers
- 430-770
- 925-1396A
- 925-1396
- 725-1396
- 725-1396A
- 1686734SM
- 539101770
- 5020927
Common Uses
- Repairing a no-crank mower after circuit testing
- Replacing a switch that will not ground the magneto
- Correcting intermittent accessory or start contact
- Replacing a physically broken key cylinder
Technical Specifications
- Product Type: Magneto ignition switch
- Positions: 3
- Terminals: 6
- Mounting Stem: 5/8 in threaded
- Condition: New
Installation & Fitment
- Disconnect the battery and remove the key
- Compare every terminal letter to the original
- Do not move wires by color alone
- Check the safety-interlock circuit before installation
- Confirm start, run, and engine-stop functions
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, dimensions, electrical or mounting configuration, installed options, and previous repairs can affect fitment. Compare the removed part and equipment information before purchase.
Frequently Asked Questions
Q: Can the wrong switch damage the mower wiring? A: Yes. Switches with the same shape can connect terminals differently, so the terminal code and ignition type must match.
Q: Why will my mower crank but not start? A: The switch may be involved, but magneto grounding, safety switches, fuel, and ignition faults should also be diagnosed.
Q: How do I confirm fitment before ordering? A: Match the original reference number, equipment model and serial number, dimensions, connector or mounting details, and the product photos. Do not rely on appearance alone.
Q: Is this made by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and model numbers are used only to identify compatible equipment.
Part Summary
keywords: 430-770 ignition switch, MTD 925-1396A switch, 1686734SM starter switch, Scag magneto key switch, Exmark Turf Tracer ignition, six terminal mower switch
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.