21T-09-11440 Komatsu Excavator Seal Kit | Precise Size Specification ORI Green PU O-Rings ORI 27.7-3.5

Product Description 

This 21T-09-11440 seal kit is precision manufactured for Komatsu excavator hydraulic systems, following strict OEM standards and precise size specifications. Constructed with high-performance special green PU material, it provides outstanding sealing performance, effectively resists oil, pressure and wear, prevents hydraulic oil leakage, and ensures stable and efficient operation of construction machinery.

Key Features

OEM Part Number: 21T-09-11440, specially designed for Komatsu excavators

Strict precise size specification, high matching accuracy with original parts

Made of premium special green PU with excellent oil resistance and aging resistance

Outstanding pressure resistance and wear resistance for heavy-duty working conditions

Stable sealing performance under variable temperature environments

Direct replacement, easy to install without modification

Mido Oil Seal was founded in 2007, which is a company specializing in the sale of construction machinery oil seals. Gathering oil seals from world's famous factories, with currently over 1,000 varieties in stock. The main service is construction machinery and engineering machinery.

The company has a total of three store and a warehouse now, one of which serves as the Foreign Trade Department to customer reception and product display. The most important thing is that we have a professional team for purchasing, selling, packing, shipping and after-sale service.

Our CEO Mr. Hu has been engaged in the oil seal industry since 1995. As one of the founders, he founded the Guangzhou Construction Machinery Industry Association and served as its president.

According to the actual situation of the Chinese excavator maintenance market, he has continuously studied, researched, innovated, introduced and developed high-quality oil seal repair kits that meet the real needs of the market. Ensure that customers can buy High-performance anti-leakage effect and long-term oil sealing effect. Based on technology leadership, the company has established a market research, quality assurance and after-sales service system to fully meet customers exact needs and has won excellent results in the industry. The reputation and word of mouth have won the continuous support of domestic and international counterparts and customers. Through long-term first-line services, we know that the promotion and use of high-quality oil seals are inseparable from your support and encouragement. We always adhere to the principle of quality first and benefit sharing to provide high-quality oil seals for the customers.

In addition to online sales, we also participate in exhibitions to have better face-to-face contact with customers. 

We truly value your feedback. Your continued support drives us to keep improving, and we strive to make our partnership even stronger.

FAQ

Q1. Why should I choose your products? 

While operating our own manufacturing facility, we also distribute oil seals from renowned international brands. We are committed to providing one-stop solutions to meet all our customers' diverse needs. Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q2. What series of products does your company have?

Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q3. Any other good service your company can provide? 

Yes. Conduct regular follow-up visits, and there are dedicated staff available online 24 hours a day

In the era of digital office, our company is committed to providing customers with comprehensive and efficient service experiences. The "Online Specialist Response" is a key component of this commitment.