Kubota U20-3 U25-3 Final Drive KYB MAG-18VP-230F OEM Travel Motor B0240-18076 RB511-61290 RB559-61290 RC157-78000 For Mini Excavator Parts
| Item | Detailed Info |
|---|---|
| Product Model | KYB (KAYABA) MAG-18VP-230F Hydraulic Travel Motor / Final Drive Assy |
| OEM Numbers | MAG-18VP-230F, B0240-18076, RB511-61290, RB559-61290, RC157-78000 |
| Applicable Machine | Kubota U20-3, U25-3 (2–2.5 ton mini excavator) |
| Quality Options | Genuine KYB Original / Premium Aftermarket Grade |
| Core Usage | Track drive & travel power for forward/reverse, slope & rough terrain operation |
| Factory Inspection | Full pressure, leakage & 2-speed function tested before delivery |
| Warranty | 12-month warranty with free replacement for manufacturing defects |
| MOQ | 1 piece; sample & bulk orders accepted |
| Lead Time | In-stock items ship within 1–3 working days |
| Shipping Period | Air/Express: 3–7 days; Sea freight: 30–45 days |
| Target Customer | Global repair shops, fleet operators & parts wholesalers |
Genuine KYB MAG-18VP-230F integrated travel motor & final drive, direct OEM replacement for Kubota U20-3/U25-3. High-strength alloy gearbox & piston motor deliver superior durability for heavy-duty cycles. Premium oil seals prevent leakage under extreme temps and high load. 2-speed design balances torque and speed for efficient travel. Compact, bolt-on design ensures easy installation and maintenance.
| Specification Item | Parameter Data |
|---|---|
| Motor Type | Axial piston, 2-speed variable |
| Displacement | 18 cc/rev |
| Rated Pressure | 21 MPa (210 Bar) |
| Max Pressure | 25 MPa (250 Bar) |
| Rated Speed | 1800 RPM |
| Max Speed | 2400 RPM |
| Output Torque | ~450 Nm |
| Gear Ratio | 1:48 |
| Net Weight | ~27 KG |
| Mounting | Direct bolt-on, same as original |
| Hydraulic Ports | Matches Kubota U20-3/U25-3 standard |
| Recommended Oil | ISO VG46 anti-wear hydraulic fluid |
| Working Temp | -20℃ ~ +80℃ |
Kubota U20-3, U25-3 (2–2.5 ton mini crawler excavators)
Main OEMs: MAG-18VP-230F, B0240-18076, RB511-61290, RB559-61290, RC157-78000；Alternate: MAG-18VP-230F-3, RB51161290
Complete final drive assembly (motor + gearbox), direct bolt-on replacement—no modification needed. Fully interchangeable with original KYB unit and compatible with Kubota’s hydraulic system.
This KYB MAG-18VP-230F combines a 2-speed axial piston motor with a planetary gearbox for high torque at low speed. It adjusts output via load-sensing control, reducing energy consumption and heat. Sealed & lubricated gearbox minimizes wear and extends service life. Ideal for urban construction, landscaping, and farm work—delivering reliable traction on mud, gravel, and slopes.
- 10+ years specializing in mini excavator final drives; precise OEM/model matching.
- Genuine KYB and premium aftermarket options; full-range Kubota parts for one-stop sourcing.
- Belparts brand exported to 150+ countries; stable quality and global logistics support.
- Guangzhou warehouse stock; CE-certified; flexible air/sea/express shipping.
- Professional technical team for installation guidance and troubleshooting.
| # | Part No. | Description | Qty |
|---|---|---|---|
| 010 | RB559-14430 | SPROCKET,DRIVE | 2 |
| 020 | 01128-51025 | BOLT | 20 |
| 030 | 01128-51025 | BOLT | 22 |
| 040 | RB559-61290 | MOTOR,ASSY(WHEEL) | 2 |
| 045 | RC157-78000 | REDUCER,SPEED | 2 |
| 050 | RB401-78050 | SEAL(FLOATING) | 4 |
| 060 | RB401-78030 | BEARING | 2 |
| 070 | RB511-78040 | NUT,RING | 2 |
| 080 | RB511-78050 | PLUG | 4 |
| 090 | 07715-03205 | BALL 5/32 | 218 |
| 100 | RB511-78060 | PLUG | 4 |
| 110 | RB511-78070 | GEAR | 8 |
| 120 | RB401-78110 | BEARING,NEEDLE | 8 |
| 130 | RB511-78080 | BEARING,INNER | 8 |
| 140 | RB401-78130 | WASHER,THRUST | 8 |
| 150 | RB401-78140 | PLATE | 2 |
| 160 | 68311-13450 | SCREW CSK-HD | 8 |
| 170 | RB511-78090 | GEAR | 2 |
| 180 | RB511-78100 | RING,SNAP | 2 |
| 190 | RB511-78110 | HOLDER | 2 |
| 200 | RB511-78120 | GEAR | 6 |
| 210 | 68311-13510 | BEARING ROLLER | 6 |
| 220 | 68311-13520 | BEARING,INNER | 6 |
| 230 | RB511-78130 | GEAR,DRIVE | 2 |
| 240 | RB511-78140 | PLATE; 1.8mm | 2 |
| 240 | RB511-78150 | PLATE; 2.3mm | 2 |
| 240 | RB511-78160 | PLATE; 2.8mm | 2 |
| 250 | RB511-78170 | COVER | 2 |
| 260 | RB401-78470 | O RING | 2 |
| 270 | RB401-78310 | WIRE | 2 |
| 280 | RB511-78180 | PLUG | 6 |
| 290 | 04817-00110 | O RING | 6 |
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