Mid-size Sumitomo SH240-series excavators are tasked with heavy-duty applications where swing drive reliability directly impacts timelines. The KBCO127 swing gearbox assembly is built to replace worn OEM units with an aftermarket alternative meeting original torque specifications.
Item NO.:
KBCO127Order(MOQ):
1pcsPayment:
T/T,WESTERN UNION,CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouThis swing reduction drive incorporates precision-ground planetary gears in a reinforced cast housing that absorbs shock loads common in heavy excavation and demolition work. Its direct-fit design eliminates the need for adapter plates or field modifications during installation on Sumitomo SH240-series excavators. Equipment rental companies, parts wholesalers, and construction fleet managers can rely on the KBCO127 to reduce repair turnaround times while maintaining consistent swing performance across their Sumitomo excavator fleet, supported by RITO HYDRAULIC quality assurance and after-sales service.
| Part Number | KBCO127 |
|---|---|
| Part Name | SH240-3 Excavator Swing Gearbox Assembly |
| Compatible Brand | SUMITOMO |
| Applicable Models | SH240-3, SH240, SH260 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 SH240-3, SH240, SH260 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 KBCO127 specifications for SUMITOMO SH240-3 series excavator hydraulic swing systems.

FAQ
Q: What are the common symptoms of a failing KBCO127 swing gearbox?
A: Check for unresponsive or uneven swing function, the superstructure continuing to rotate after the control stick centers, harsh grinding or rattling from the drive casing, hydraulic oil misting from shaft seals, and progressive loss of rotary power under working loads.
Q: What should be checked before installing the KBCO127?
A: Confirm the hydraulic oil achieves ISO 4406 18/16/13 cleanliness rating at minimum, validate the main circuit relief pressure against Sumitomo OEM data, ensure the mounting pad is level and threaded bores are free of debris, and flush the entire hydraulic loop.
Q: Is this KBCO127 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 KBCO127 fits my excavator model?
A: Cross-check your existing part number against KBCO127. This assembly fits SH240-3, SH240, SH260 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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