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Kubota 3C581-72150 is the cab heater and air conditioning blower: a 12 V motor with a white squirrel cage fan, a black mounting ring with three lugs and a side plug. It is used on Kubota M series cab tractors. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | A/C Blower Motor |
| Replaces | Kubota 3C581-72150 |
| Type | Cab blower motor with fan |
| Voltage | 12 V |
| Fan | Squirrel cage |
| Fits | Kubota M5040, M6040, M7040, M8540, M9540, M9960, M100GX, M110GX, M126GX, M135GX and M5-091 / M5-111 tractors with a cab |
| Condition | New, aftermarket |
| Stat. HS-Code | 841459 |
| Country of Manufacture | China |
Kubota machines
Check the part number on your old unit before ordering.
| Kubota Part No.(SPM Part No.) | Fits |
|---|---|
| 3C581-72150(SPM-HEP-5351) | Kubota M5040, M6040, M7040, M8540, M9540, M9960, M100GX, M110GX, M126GX, M135GX and M5-091 / M5-111 tractors with a cab |
No air from the vents
If the fan control and fuse are fine but no air comes from the cab vents at any speed, the blower motor has stopped.
Noise and vibration
A squeal, rattle or wobble from behind the vents means worn bearings or a damaged fan wheel. Replace the blower before it seizes.
Weak airflow or only some speeds
Worn brushes cut the airflow. If only some speeds work, check the blower resistor as well.
Fitting tips
Disconnect the battery, remove the blower cover or cab panel, unplug and unbolt the old blower, and fit the new one the same way round. Check every fan speed before refitting the trim.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 54.01 | 4 Nov 2026 |
| MyMROmarts | USD 115.33 | 4 Nov 2026 |
| FridayParts | USD 377.99 | 4 Nov 2026 |
| KuduParts | USD 400.00 | 4 Nov 2026 |
| Buy Machinery Parts | USD 507.96 | 4 Nov 2026 |
| Spare Part Mart | USD 43.05 | Today |
Our price of USD 43.05 is 20% to 92% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the Kubota M5040, and 10 more listed under compatible equipment. Check the old blower motor is marked 3C581-72150 or one of the cross references, because makers change parts between serial ranges.
On the Kubota M5040, there is no fixed interval. It is changed when it fails, and many fail from water in the plug or chafed wiring rather than wear.
A fault code for this circuit, readings that jump or stay fixed, or a part that does not respond with power at the plug.
Read the fault codes, then check the plug and wiring for corrosion or a broken wire. A wiring fault reads the same as a failed blower motor.
A little dielectric grease keeps water out of the plug on machines that work outside. Make sure the terminals are clean and tight first.
No. It is an aftermarket blower motor made to replace the Kubota 3C581-72150. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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