120-8 Swing Hydraulic Motor Assembly For Small Medium Excavator Construction Machinery
120-8 swing hydraulic motor assembly is complete aftermarket rotary hydraulic spare part for small medium heavy-duty excavator construction machinery. This swing motor unit fully restores stable rotation performance of excavation equipment after replacing old rotary components.
- Mining, quarry medium earthmoving excavation operation
- Country road, bridge and municipal infrastructure construction projects
- River dredging, land reclamation and building foundation excavation
- Landscaping and small factory construction engineering
- Long-term continuous medium-load daily construction site operation
- Swing system oil leakage caused by aging seals and worn housing
- Insufficient swing torque, slow rotation under medium load
- Swing jitter, abnormal vibration and loud rotation noise
- Worn piston & valve plate leading to swing stall and low work efficiency
- Short service life of original motor, frequent maintenance downtime
- 100% matched mounting dimension, direct replacement without modification
- High wear-resistant hydraulic components, long service life
- Full factory pressure testing before shipment, stable rotary output
- Support 1pc trial order & mass wholesale for global repair workshops & spare parts dealers
- Standard export wooden case packaging to avoid transit damage
- 6 months factory warranty for all aftermarket swing motor assemblies
| Product Category | Hot Main Models & Part Numbers |
|---|---|
| Hydraulic Main Pump | AP2D14, AP2D18, AP2D21, AP2D36, A8VO225, 1250-7 |
| Swing Hydraulic Motor | 120-8, 130-7, 200-7, 360-7, 450-7 Swing Motor Assembly |
| Travel Final Drive Motor | 120-8, 200-7, 360-7, 450-8, GM35, GM60 Travel Spare Parts |
| Engine Spare Parts | 6BG1, 4JG1, 6HK1, Engine Overhaul Kit, Piston, Cylinder Liner |
| Main Control Distribution Valve | Full Control Valve Assembly, Valve Plate, Spool Repair Kit |
| Hydraulic Overhaul Repair Kit | AP2D14 Repair Kit, AP2D18 Repair Kit, AP2D21 Repair Kit, Swing Motor Seal Kit |
A1: It applies to mining, quarry, highway construction, municipal infrastructure and building foundation excavation for small medium excavator machinery.
A2: It solves swing oil leakage, insufficient torque, rotation jitter and vibration failure of medium excavator rotary system.
A3: Yes, it is brand new aftermarket swing motor assembly, fully compatible with small medium excavator construction machinery.
A4: Yes, our MOQ is 1 piece, we have sufficient factory stock for global repair shops and spare parts distributors.
A5: We provide 6 months factory warranty for all hydraulic aftermarket swing spare parts.
A6: We supply full series excavator spare parts including hydraulic main pump, travel final drive motor, engine spare parts, distribution control valve and all hydraulic overhaul repair kits.
Global excavator repair shops & spare parts suppliers are welcome to send inquiry for stable factory supply. If you cannot confirm matching size, send your machine model number for free technical matching verification.
