Heavy equipment supervisors running Hyundai R305-9 R300 and R320 excavators often face worsening upper-structure rotation and gradual hydraulic efficiency loss through demanding work cycles. The 31Q9-10160 swing motor is designed to resolve these recurring issues restoring sharp slewing performance on intensive earthmoving sites.
Item NO.:
31Q9-10160Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockEngineered as a precision drop-in service replacement to OEM-equivalent standards, the 31Q9-10160 reliably supplies robust high-torque rotary motion, suppresses internal hydraulic leakage, and prolongs overhaul cycles - allowing wholesale parts traders, independent repair workshops, and heavy machinery rental fleets to slash unscheduled downtime costs and reinforce their aftermarket supply competitiveness.
| Part Number | 31Q9-10160 / 31Q910160 |
|---|---|
| Part Name | R305-9 R300 R320 Excavator Swing Motor Assembly |
| Compatible Brand | HYUNDAI |
| Applicable Models | R305-9, R300, R320 Large 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 R305-9, R300, and R320 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 31Q9-10160 / 31Q910160 specifications for HYUNDAI R305-9 series excavator hydraulic swing systems.
FAQ
Q: What are the common symptoms of a failing 31Q9-10160 swing motor?
A: Slow or jerky swing movement, excessive upper-structure drift after stopping, abnormal grinding noise from the rotary drive, visible hydraulic oil leakage around the motor seal, and reduced slewing torque under load.
Q: What should be checked before installing the 31Q9-10160 swing motor?
A: Verify hydraulic oil cleanliness to ISO 4406 18/16/13 or better, confirm system relief pressure matches factory specifications, inspect mounting surface flatness and bolt-hole alignment, and flush the hydraulic circuit thoroughly.
Q: Is this 31Q9-10160 a genuine OEM or aftermarket part?
A: This is a 100% new aftermarket swing motor 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 31Q9-10160 fits my excavator model?
A: Cross-check your existing part number against 31Q9-10160 / 31Q910160. This assembly fits R305-9, R300, and R320 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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