Komatsu PC130-8MO excavator operators commonly report deteriorating slew accuracy, irregular upper-carriage rotation, and diminishing hydraulic output during high-duty-cycle operations. The KBB0840-35001 replacement motor directly targets these performance shortfalls, helping teams regain precise swing control and sustained productivity.
Item NO.:
KBB0840-35001Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockProduced to meet OEM-equivalent engineering standards as a plug-and-play service unit, the KBB0840-35001 reliably supplies smooth high-torque slewing motion, controls internal hydraulic bypass, and lengthens service intervals - allowing international parts wholesalers and fleet operators to drive down repair-related downtime.
| Part Number | KBB0840-35001 |
|---|---|
| Part Name | PC130-8MO Excavator Swing Gearbox Assembly |
| Compatible Brand | KOMATSU |
| Applicable Models | PC130-8MO, PC130-8, PC140 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 PC130-8MO, PC130-8, PC140 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 KBB0840-35001 specifications for KOMATSU PC130-8MO series excavator hydraulic swing systems.
FAQ
What early warning signs point to a failing swing motor on PC130-8MO excavators?
The most common early warnings are jerky or sluggish swing motion, upper structure creeping after the control lever centers, grinding or rattling noise emanating from the gearbox housing, and progressive decline in rotary torque under working conditions.
What pre-installation procedures are required before fitting the KBB0840-35001?
Validate hydraulic oil cleanliness to ISO 4406 18/16/13 standards or above, check main relief pressure against Komatsu factory specifications, ensure the mounting surface is level and all threaded holes are clean, and thoroughly flush the hydraulic system.
Q: Is this KBB0840-35001 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, ensuring consistent quality, precise fitment, and reliable after-sales support.
Q: How to confirm the KBB0840-35001 fits my excavator model?
A: Cross-check your existing part number against KBB0840-35001. This assembly fits PC130-8MO, PC130-8, PC140 excavators. Verify the mounting bolt pattern, hydraulic port positions, and output shaft dimensions match your machine. 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
This RITO 423-20-32621 Universal Joint Spider Assembly is a key transmission component for Doosan DH200, DH220, and DH225 excavators, designed to transfer torque between shafts at varying angles. It ensures smooth power transmission, flexible movement, and stable performance in demanding construction environments.
View More
This RITO Excavator Bushing Sleeve for Solar 170LC-3 is a critical wear-resistant component designed to support pin-to-bore connections in excavator structures. It ensures proper alignment, reduces friction, and maintains stable movement of key parts such as the boom, arm, and bucket in construction environments.
View More
Hydraulic drift and pressure drops in Komatsu excavators often signal a failing control valve, leading to sluggish cycles and dangerous load slippage. In high-stakes mining, the 708-2L-07412 solves these critical instabilities, preventing the massive revenue loss caused by machine downtime.
View More
The RITO Hydraulic Fan Motor Gear Pump 708-7W-00021-OT is a high-performance hydraulic fan motor and gear pump motor designed to optimize the fan system for excavators. This essential component is engineered to provide efficient cooling, ensuring that the excavator's engine operates at an optimal temperature, even in the most demanding conditions. The 708-7W-00021-OT is specifically designed to withstand high torque and pressure, providing reliable performance in both construction and mining industries. Available for wholesale and bulk purchasing, this fan motor and pump combination is perfect for maintaining high-efficiency excavator systems, reducing downtime, and improving overall productivity.
View More
Excessive joint play and "oval" wear in excavator booms lead to dangerous instability and structural cracking. Standard bushings often fail under the extreme impact of mining tasks, causing catastrophic pin seizure. The 20Y-70-31512 addresses these high-stress points, preventing the massive repair costs that paralyze your PC200-8M0 fleet.
View More
Loose joints and excessive play lead to premature pin wear and costly linkage damage. Unstable gaps in excavator arms cause operational inaccuracy and safety risks. The 423-23-31570 provides a precision solution. This heavy-duty Shim Spacer eliminates gap issues and restores equipment stability.
View More
Exposed rear axles are vulnerable to debris impact, leading to costly structural damage and downtime in harsh construction sites. Minor hits cause major mechanical failures under heavy loads. The 418-22-21310 provides a high-strength shield. This Protector Guard Cover ensures ultimate axle safety.
View More
Inconsistent swing motion or gearbox wear in excavators leads to poor machine rotation and operational delays.
View MoreLeave A Message
Scan to wechat :
