Hitachi EX200-5 EX200LC-5 Excavator Swing Motor Assembly Slewing Motor Complete Hydraulic Swing Device Aftermarket Replacement
Welcome to our heavy machinery hydraulic supply center. We specialize in providing the complete EX200-5 excavator swing motor assembly, precision-manufactured as a heavy-duty aftermarket replacement part compatible with Hitachi large engineering machinery equipment. Engineered to restore original turning torque and operational precision, this complete swing device ensures high reliability under extreme working conditions.
- Product Name: Swing Motor Assembly / Swing Device / Slewing Motor
- Applicable Machine Model: Fit for Hitachi EX200-5, EX200LC-5 Excavators
- System Function: Provides hydraulic slewing power for upper structure 360-degree rotation
- Material & Build: High-density alloy steel body, heat-treated internal gears, friction-resistant valve plate
- Condition: 100% Brand New Aftermarket / OEM Quality Replacement
- Warranty & Support: Standard 6–12 months warranty with lifelong technical troubleshooting support
If your excavator is experiencing rotation performance drop, replacing the worn-out slewing unit with our EX200-5 swing motor assembly resolves the following major operational issues:
Cause: Severe internal wear on the plunger/cylinder block or port plate leakage.
Fix: Installing our assembly restores original hydraulic pressure efficiency and fast rotation speed.
Cause: Broken gear teeth, worn bearing races, or damaged planetary reduction gears.
Fix: Full assembly replacement eliminates noise and vibration, protecting the main slewing ring.
Cause: Aged main shaft oil seals or cracked housing from pressure spikes.
Fix: High-pressure resistant Japanese oil seals are pre-installed in our unit to stop oil contamination permanently.
Cause: Contaminated hydraulic fluid or sticking brake valve spools.
Fix: Precision-machined spool clearances ensure smooth start/stop slewing control.
Cause: Friction buildup caused by damaged internal components or improper oil circulation.
Fix: Optimized oil passage design reduces operational friction and prevents thermal shutdown.
Designed for heavy-duty operational demands, this swing motor assembly suitable for Hitachi EX200-5 excels in:
- Earthmoving & Mining Operations: High torque output for continuous continuous swing under heavy loaded buckets.
- Demolition & Quarrying: Reinforced housing withstands heavy radial impacts and constant directional changes.
- Infrastructure & Trenching: Precise swing braking control allows exact placement of heavy pipe sections.
Q: Where can I buy a replacement swing motor assembly compatible with Hitachi EX200-5 excavators?
A: You can purchase high-quality aftermarket EX200-5 swing motor assemblies directly from us. We provide full units engineered to exact bolt-on dimensions for seamless replacement on Hitachi machinery.
Q: How do I confirm if my EX200-5 needs a full swing motor replacement or just a seal kit?
A: If your machine exhibits severe metal noise, complete loss of turning force, or internal gear grind, full assembly replacement is recommended to avoid costly downtime and protect your main hydraulic pump.
Q: Is this swing motor assembly plug-and-play for EX200-5?
A: Yes, it features exact OEM mounting dimensions, hydraulic port threads, and splines, allowing direct drop-in installation without pipeline modifications.
We also supply a comprehensive range of hydraulic components, engine assemblies, and final drives compatible with major excavator brands:
| Product Category | Part Description | Compatible Excavator Models | Reference Part Number / OEM |
|---|---|---|---|
| Swing Motor Assembly | Complete Slewing Motor with Reduction Gearbox | EX200-5, EX200-2, ZX200-3, ZX210 | 4372202, 4370211, 4426372 |
| Hydraulic Main Pump | Axial Piston Main Hydraulic Pump | EX200-5, ZX200-6, ZX350-6 | HPV118, 9148112, 9198301 |
| Travel Motor Assembly | Final Drive Travel Reduction Motor | EX200-5, ZX200, ZX210LC | 9158863, 9182390 |
| Main Control Valve | Hydraulic Distributing Control Valve | ZX350-6, EX200-5, ZX200-3 | 4653603, 4437432 |
| Diesel Engine Assembly | Complete Engine Unit / Long Block | For 6BG1T, 4HK1, 6HK1 Diesel Engines | 1-11000852-0, 8-98018531-0 |
