66021-55140 Ignition Key Switch for Kubota Tractor M7030 M7030DT M8030 M8030DT
$51.09
Sale price
$51.09
Regular price
Skip to product information
SKU:
ZZ3F03889
Same day shipping if ordered by 4PM CST.
66021-55140 Ignition Key Switch for Kubota Tractor M7030 M7030DT M8030 M8030DT
$51.09
In Stock
$51.09
Sale price
$51.09
Regular price
Part Number(s)
Estimated delivery between
Let us 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 needed a replacement starter for my mower and wasn’t completely sure which one would fit. I sent them a message and they got back to me quickly, asked for my model information, and helped confirm the right part before I ordered. Everything was handled professionally and the communication was great. Very happy with the service.
Kevin C. — 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
Ignition Key Switch for Kubota Tractor M7030 M7030DT M8030 M8030DT
This ignition key switch for Kubota tractor M7030, M7030DT, M8030, and M8030DT is a direct replacement part that controls the electrical start and stop functions of your diesel tractor. This ignition key switch lets you start the engine reliably and cut power cleanly when the workday ends. It matches OEM cross-reference part number 66021-55140 and is built for the demands of farm and field duty.
Overview
This ignition key switch for Kubota tractor M7030, M7030DT, M8030, and M8030DT is a heavy-duty electrical switch designed to control the starting circuit on compatible Kubota models. The switch fits the factory mounting hole and connects to the existing wiring harness for a straightforward install. It is a dependable replacement for a worn or faulty key switch and keeps your tractor starting reliably.
Built For Performance
- Metal housing and terminals resist corrosion and vibration
- Positive detent action locks each key position firmly
- Dielectric internals handle repeated start cycles
- Direct-fit connector pattern matches original wiring
- Keyed cylinder resists dust and moisture ingress
Fits These Machines
- for Kubota M7030
- for Kubota M7030DT
- for Kubota M8030
- for Kubota M8030DT
On-The-Job Use
- Use for daily cold starts in the morning before field work
- Use for repeated engine shutoff during loader and PTO operations
- Works for tractors stored outdoors where moisture and dust shorten switch life
- Use as a direct replacement during scheduled electrical system maintenance
Specs At A Glance
| Part Number(s) | 66021-55140 |
| Type | Ignition key switch |
| Compatible Brand | for Kubota |
| Model Series | M7030, M7030DT, M8030, M8030DT |
Good To Know
Q: Will this switch fit my tractor if it currently has a different aftermarket switch? A: This switch is designed to match the factory OEM switch for the Kubota M7030 and M8030 series, so it will work if your replacement switch uses the same mounting pattern and wiring layout. Confirm your current switch position counts and connector shape before ordering.
Q: Can this ignition switch be installed without rewiring the entire tractor? A: Yes, this is a direct replacement switch that pairs with the existing harness terminals on compatible models, so no rewiring is needed. Always disconnect the battery before swapping the switch to avoid shorting the electrical system.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.