Fleet managers running Caterpillar E320 E320B and E320C excavators often face worsening upper-structure rotation and gradual drive loss during demanding work cycles. The E320 swing gearbox resolves these recurring issues, restoring sharp slewing performance and reliable output on intensive earthmoving sites.
Item NO.:
E320Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockEngineered as a precision drop-in OEM-equivalent service replacement, the E320 reliably supplies robust high-torque rotary motion, suppresses internal leakage, and prolongs overhaul cycles.
| Part Number | E320 |
|---|---|
| Part Name | E320 E320B E320C Excavator Swing Gearbox Assembly |
| Compatible Brand | CATERPILLAR |
| Applicable Models | E320, E320B, E320C Excavator |
| Application | Excavator upper structure slewing hydraulic drive system |
| Material | High-strength forged alloy steel housing |
| Product Color | Matte industrial gray with anti-rust coating |
| Working Temperature | -25°C ~ +60°C |
| Key Function | Converts high-pressure hydraulic fluid into controlled rotary torque |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Provides powerful and stable rotary force for E320, E320B, and E320C excavator upper structure rotation and swing operations.
Converts hydraulic pressure into controlled rotary movement for smooth and precise swing operation.
Provides stable speed reduction, increased torque output, and efficient power transmission under heavy-duty excavation conditions.
Matches E320 specifications for CATERPILLAR E320 series excavator hydraulic swing systems.
FAQ
Q: What are the common symptoms of a failing E320 swing gearbox?
A: Key indicators include unresponsive swing function, the superstructure drifting after controls center, harsh grinding from the drive casing, and progressive loss of rotary power under working loads.
Q: What should be checked before installing the E320?
A: Confirm gearbox oil achieves required cleanliness rating, validate circuit alignment against Caterpillar OEM data, ensure the mounting pad is level, and flush the entire drive loop.
Q: Is this E320 a genuine OEM or aftermarket part?
A: This is a 100% new aftermarket assembly manufactured to OEM specifications. RITO HYDRAULIC is a listed supplier to major Chinese excavator OEMs and Fortune 500 companies.
Q: How to confirm the E320 fits my excavator model?
A: Cross-check your existing part number against E320. This assembly fits E320, E320B, and E320C excavators. Contact our technical team with your serial number for compatibility confirmation.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A: Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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