Guangzhou Yangkai Machinery Parts Co., Ltd.
                                                                                                           
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Excavator R305LC-7 RED Control Valve Seal Kit 31N9-10110 Hyundai Machinery seals

Price Negotiable
Price: 22$-27$
MOQ: 3 sets
Delivery Time: 7-10 work days
Brand: WYS
Product Description
Excavator R305LC-7 RED Control Valve Seal Kit 31N9-10110
High-quality replacement seal kit for Hyundai R305LC-7 excavator control valves, designed to restore optimal hydraulic performance.
Product SpecifiCions
Part Name Control Valve Seal Kit Advantage Save more than 90% of costs
Product Number 31N9-10110 Pressure Typically over 300 bar
Model R305LC-7 Delivery Time 7-10 Days
Brand Support HYUNDAI MOQ 3 sets
Manufacturer Korea Brand WYS ®
Material NBR, FKM, PTFE, SPCC Payment L/C, T/T, PayPal, Alipay
Quantity 1 EA contains 9 packets Shipping Depends on customers
Cost-Effective Solution
Compared to replacing the entire expensive control valve assembly (tens of thousands of yuan), repairing with high-quality sealing kits (typically costing several hundred to several thousand yuan) can save more than 90% of the cost, making it a highly economical repair solution.
WYS Control Valve Seal Kit components and packaging
Product Features & Advantages
Precise Size & Quantity Matching
During maintenance, there's no need to individually check dozens of seals of different specifiCions. Solve the problem in one go, improving efficiency and accuracy.
Imported Hydrogenated Nitrile Rubber
Withstands high pressure (over 300 bar) and oil temperature changes (-30℃ to 120℃). Long service life, stable performance, and leak prevention.
Strict Tolerance Control
Restores valve body to original design performance, ensuring smooth operation and ample power.
WYS seal kit installation and appliCion
Troubleshooting Common Problems
Specifically designed to address common issues in control valves of this machine model, such as seal aging, hardening, and wear. Effectively resolves:
  • Slow and weak operation
  • Worse operation after warm-up
  • Automatic boom drop and bucket inability to retract
  • Oil leakage from valve body exterior or mating surfaces
  • Slight machine movement even when control lever is neutral (caused by internal leakage)
Related Recommendations
Industry exhibition information
The Indonesia Energy & Engineering Series Exhibition in September 2025 (Southeast Asian market)
The Bauma China Shanghai exhibition in November 2024 (global industry event)
The CTT exhibition in Russia in May 2024 and 2023 (targeting Eastern European and CIS markets)
Additional product information Product specifiCions and details
Shipping & Payment
Logistics Methods: Sea freight, air freight, express delivery, DHL, EMS, FedEx, UPS
Payment Methods: L/C, T/T, PayPal, Alipay
WYS seal quality and certifiCion
Frequently Asked Questions
Are you the authorized distributor of WYS seals in China?
Yes, we are the officially authorized distributor of WYS seals in China.
What is the difference between WYS seals and other brands?
Exceptional durability, with a failure rate more than 60% lower than ordinary brands.
How to get samples from you?
We support sample service. Please contact customer service for details.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Yangkai Machinery Parts Co., Ltd.
Location 3rd Floor, Building B, Goldfish Street, No. 1196, Zhongshan Avenue, Tianhe District, Guangzhou
Contact Person Amy

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