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Kubota 3A231-82203 is the tandem (two section) hydraulic gear pump with an aluminium body, a black square four bolt mounting flange, a splined drive shaft and side ports on each section. It is used on Kubota M4900 and M5700 tractors. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as Kubota 3A231-82200.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Hydraulic Gear Pump |
| Replaces | Kubota 3A231-82203 |
| Pump type | Tandem gear pump |
| Machine | Kubota M4900, M5700 (all variants) |
| Drive | Splined shaft |
| Cross references | Kubota 3A231-82200 |
| Fits | Kubota M4900, M4900DT, M4900-CAB, M4900DT-CAB, M5700, M5700DT, M5700-CAB, M5700DT-CAB and M5700DTHSC tractors |
| Condition | New, aftermarket |
| Stat. HS-Code | 841360 |
| Country of Manufacture | China |
Kubota machines
Check the part number on your old unit before ordering.
| Kubota Part No.(SPM Part No.) | Fits |
|---|---|
| 3A231-82203(SPM-HEP-4797) | Kubota M4900, M4900DT, M4900-CAB, M4900DT-CAB, M5700, M5700DT, M5700-CAB, M5700DT-CAB and M5700DTHSC tractors |
| 3A231-82200(SPM-HEP-4797) | Kubota M4900, M4900DT, M4900-CAB, M4900DT-CAB, M5700, M5700DT, M5700-CAB, M5700DT-CAB and M5700DTHSC tractors |
Slow or weak hydraulics
A worn pump loses flow and pressure: functions slow down, especially when the oil is hot.
Noise
Whining or knocking from the pump points to worn gears or pistons, or cavitation from a blocked suction line.
Contamination
Metal in the filter or oil means the pump is wearing. Replace it before debris damages valves and motors.
Fitting tips
Flush the system, change the oil and filters, fill the pump case before starting, and run at low speed first.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (6 aftermarket sellers) | USD 248.99 to 250.00 | 1 Nov 2026 |
| SINOCMP | USD 369.00 | 1 Nov 2026 |
| Spare Part Mart | USD 200.44 | Today |
Our price of USD 200.44 is 19% to 46% 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 M4900, and 8 more listed under compatible equipment. Check the old hydraulic pump is marked 3A231-82203 or one of the cross references, because makers change parts between serial ranges.
On the Kubota M4900, often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
Yes. Fill the pump and its suction line with clean fluid before the first start. Running it dry, even for a few seconds, can score it.
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
No. It is an aftermarket hydraulic pump made to replace the Kubota 3A231-82203. 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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