High-quality swing motor seal kit for PC138US-8, restoring hydraulic sealing performance and preventing rotary motor leakage.
OEM-matched 706-7C-01010K swing motor seal kit
Designed specifically for Komatsu PC138US-8 excavators
Includes all seals, O-rings, gaskets, and wear parts required for overhaul
Manufactured with high-pressure and heat-resistant materials
Ensures stable swing motor rotation, oil sealing, and extended service life
The YNF17723 Swing Motor Seal Kit, replacing OEM 706-7C-01010K, is engineered for the Komatsu PC138US-8 swing motor. This complete seal kit is designed to restore proper sealing of the rotary motor, preventing hydraulic oil leakage, pressure loss, swing vibration, and performance decline. A worn or leaking seal can quickly lead to overheating, reduced torque, or serious internal damage.
Manufactured with high-grade rubber, polyurethane, PTFE, and high-pressure sealing materials, the kit provides excellent resistance to heat, oil, and extreme working pressure. Each component is precisely sized to match the original swing motor structure, ensuring easy installation and long-term durability.
Ideal for hydraulic repair workshops, fleet maintenance teams, and construction equipment distributors, this seal kit delivers reliable sealing performance and cost-effective swing motor rebuilding for PC138US-8 excavators.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF17723 |
| OEM Number | 706-7C-01010K |
| Machine Model | Komatsu PC138US-8 |
| Product Type | Swing Motor Seal Kit / Rotary Motor Repair Kit |
| Components Included | O-rings, oil seals, dust seals, gaskets, wear rings |
| Material | Rubber, PU, PTFE, high-pressure sealing compounds |
| Function | Restores hydraulic sealing and swing motor performance |
| Application | Excavator rotary motor rebuilding |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Set |
| Shipping Options | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application Area | Description |
|---|---|
| Swing Motor Overhaul | Restores sealing of PC138US-8 rotary motor |
| Hydraulic Leakage Repair | Prevents oil leakage and pressure loss |
| Komatsu Excavator Maintenance | OEM-fit replacement for 706-7C-01010K |
| Swing Torque & Stability Improvement | Ensures stable rotation output |
| Aftermarket Seal Kit Distribution | Suitable for repair shops and parts wholesalers |
Related Products:
Komatsu Swing Motor Assembly
PC138US-8 Hydraulic Pump Seal Kit
Rotary Motor Bearing & Gasket Set
Excavator Main Control Valve Seal Kits
FAQs：
Q: Is this kit compatible with PC138US-8?
A: Yes, it is designed specifically for this model.
Q: What issues does this seal kit fix?
A: Oil leakage, pressure loss, unstable swing, weak torque.
Q: Does the kit include all required seals?
A: Yes, it is a full rebuild seal set.
Q: MOQ?
A: 1 set.
The YNF17723 706-7C-01010K Swing Motor Seal Kit provides a complete sealing solution for Komatsu PC138US-8 rotary motors. Built with premium materials designed to withstand high pressure and temperature, it delivers long-lasting hydraulic sealing and reduces downtime. YNF Machinery offers stable quality, competitive pricing, and fast shipping—ideal for hydraulic repair shops, excavator fleets, and aftermarket distributors. Contact us today for a quotation.
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