RD411-71400 Boom Cylinder Seal Kit for Kubota Excavators
RD411-71400 Product Overview
As a leading manufacturer of high-quality hydraulic seal kits, our factory proudly presents the RD411-71400 Seal Kit, a robust and reliable solution engineered for a range of Kubota excavators. This premium aftermarket kit is specifically designed to restore optimal sealing performance in the boom cylinders of popular models such as the Kubota U45-3, U45-3S, U45-3ST, U50-3, and KX175-5. Manufactured with precision and using durable materials, this seal kit effectively prevents hydraulic fluid leakage, protects against contamination, and ensures the smooth, powerful operation of your excavator’s critical hydraulic functions. Ideal for heavy equipment parts suppliers, repair shops, and fleet maintenance teams, our RD41171400 seal kit guarantees extended component life and reduced downtime for your machinery.
Technical Specifications
Specification | Detail |
Part Number | RD411-71400 |
Applicable Models | Kubota U45-3, U45-3S, U45-3ST, U50-3, KX175-5 Excavators |
Cylinder Application | Boom Cylinder |
Condition | New, Aftermarket Replacement |
Material Composition | High-grade Polyurethane (PU), Nitrile Butadiene Rubber (NBR), PTFE |
RD411-71400 Seal Kit Components
Component | Function |
Rod Seals | Prevents external leakage along the cylinder rod. |
Piston Seals | Ensures efficient pressure separation within the cylinder. |
Wiper Seals | Keeps contaminants out by cleaning the rod surface. |
Wear Rings | Guides the piston and rod, preventing metal-to-metal contact. |
Buffer Seals | Absorbs pressure spikes and protects the rod seal. |
O-rings | Provides static and dynamic sealing in various applications. |
Core Advantages
•Precision Fit & Performance: Engineered to exact OEM specifications for seamless integration and reliable hydraulic function.
•Enhanced Durability: Constructed from premium materials resistant to abrasion, high pressure, and temperature fluctuations.
•Cost-Effective Solution: Offers a high-quality, long-lasting repair at a competitive price, minimizing operational expenses.
•Optimized for Kubota Excavators: Specifically designed for the demanding boom cylinder applications in various Kubota excavator models.

Frequently Asked Questions (FAQ)
Q: Do you have any other excavator model repair seal kits ?
A: Yes. As the professional seal kits manufacturer, we produce all the hydraulic cylinder repair seal kits, standard sizes and also support customization. Please tell us the part number seal kit you want.
Q: I can’t find the model I want. Are all your seal repair kits here?
A: No. We have more than tens of thousands seal kits. Here only a small part of them is shown. We have stock of all the seal kits for construction machinery. Please contact us!
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