Swing Motor 15T Description
The YNF16758 Swing Motor (Part No. 401-00403) is a complete hydraulic motor assembly used in the rotation (slew) system of Doosan Solar 75V and DH80-7 excavators. Featuring a 15-tooth spline output, it is engineered to match the original swing drive configuration, providing reliable torque output for upper structure rotation. Manufactured with hardened internal gears, high-pressure seals, and precision-machined components, this swing motor ensures efficient, leak-free performance under heavy-duty excavation conditions. Ideal for fleet owners, repair workshops, and B2B resellers seeking quality OEM alternatives.
401-00403 Swing Motor Technical Sheet
| Parameter |
Value |
| Part Name |
Swing Motor / 回转马达 |
| Part No. |
401-00403 |
| YNF No. |
YNF16758 |
| Applicable Models |
Doosan Solar 75V, DH80-7 |
| Spline Count |
15 Teeth |
| Output Function |
Hydraulic Slew / Rotation of Excavator Upper Body |
| Installation |
Bolt-on, direct replacement |
| Pressure Rating |
Up to 32 MPa (depending on system) |
| Flow Rate |
OEM-standard capacity |
| Material |
High-strength alloy, precision-hardened gears |
| Country of Origin |
China |
| Brand |
YNF Machinery |
| MOQ |
1 Unit |
| Shipping |
Express / Air / Sea |
| Payment Terms |
T/T, Western Union |
Swing Motor Applications
| Application System |
Description |
| Excavator Rotation Drive |
Controls rotation of the upper structure |
| OEM Component Replacement |
Suitable for original Doosan 401-00403 part number |
| Compact Excavator Repair |
Ideal for 7–8 ton excavator swing systems |
| Aftermarket Spare Part Supply |
High-demand item for swing system service |
| Equipment Refurbishment Projects |
Used in rebuilt or resold excavator units |
401-00403 Swing Motor 15T Detail Display
What Does the Swing Motor Do in an Excavator?
The swing motor drives the upper structure rotation of the excavator, allowing for 360° working flexibility. A worn or leaking swing motor causes sluggish movement and hydraulic loss. YNF16758 (401-00403) is designed to restore full rotational power to Doosan compact excavators like the Solar 75V and DH80-7.
Related Products:
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Swing Motor Seal Kits
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Swing Reduction Gearbox
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Final Drive Motors for Doosan
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Main Hydraulic Pump for DH80-7
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Doosan Swing Bearing Assemblies
FAQs:
-
Is this motor plug-and-play with OEM fittings?
Yes, it’s a direct-fit replacement for part number 401-00403.
-
Can I get it with warranty?
Yes, up to 12 months under normal usage—please inquire for details.
