Excavator fleets running Komatsu PC130-7 models often struggle with deteriorating swing precision, unsteady upper-structure rotation, and gradual hydraulic power fade under sustained heavy workloads. The 21Y-26-01000 swing motor directly addresses these performance gaps, restoring responsive slew control and job-site reliability when it matters most.
Item NO.:
21Y-26-01000Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockBuilt to OEM-equivalent standards for straightforward bolt-in replacement, the 21Y-26-01000 ensures dependable high-torque rotary output, minimizes internal fluid bypass, and extends service life between overhauls - helping parts distributors, independent repair shops, and equipment rental fleets slash operational downtime.
| Part Number | 21Y-26-01000 |
|---|---|
| Part Name | PC130-7 Excavator Swing Gearbox Assembly |
| Compatible Brand | KOMATSU |
| Applicable Models | PC130-7, PC130, 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 PC130-7, PC130, 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 21Y-26-01000 specifications for KOMATSU PC130-7 series excavator hydraulic swing systems.
FAQ
How can I diagnose a failing swing motor on my PC130-7 excavator?
Key warning indicators include hesitant or uneven swing action, the upper structure coasting after controls are released, grinding or hammering sounds from the drive unit, visible oil seepage around the shaft area, and progressive decline in rotary power during excavation.
Which verification steps must be carried out before mounting a new 21Y-26-01000?
Confirm the hydraulic oil achieves ISO 4406 18/16/13 cleanliness rating at minimum, validate the main circuit relief pressure against Komatsu OEM data, ensure the mounting pad is level and threaded bores are free of debris, and flush the entire hydraulic loop to purge any contaminant particles.
Q: Is this 21Y-26-01000 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 21Y-26-01000 fits my excavator model?
A: Cross-check your existing part number against 21Y-26-01000. This assembly fits PC130-7, PC130, 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
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