Hitachi Seals and Cylinder Repair Kits

Hydraulic Seals & Cylinder Repair Solutions for Hitachi Equipment

Hydraulic cylinders are critical to the performance of Hitachi excavators and heavy construction equipment. Over time, seals wear from pressure cycles, contamination, and constant articulation. When seal integrity fails, performance drops quickly — leading to oil leakage, reduced lifting power, and costly downtime.

WQParts supplies high-quality aftermarket Hitachi seals and cylinder repair kits engineered to restore hydraulic performance and extend cylinder service life in demanding jobsite and mining environments.

Applications for Hitachi Hydraulic Cylinders

Our seals and repair kits are used in:

• Boom cylinders

• Arm (stick) cylinders

• Bucket cylinders

• Steering cylinders

• Tilt and auxiliary attachment cylinders

These systems operate under high hydraulic pressure and continuous load, making material quality and dimensional accuracy essential.

What’s Included in a Hitachi Cylinder Repair Kit?

Depending on application, kits may include:

• Rod seals

• Piston seals

• Wear rings

• Wipers and scrapers

• O-rings

• Backup rings

• Guide rings

Each component is selected to meet strict dimensional tolerances and material standards suitable for heavy-duty hydraulic systems.

Built for Severe-Duty Environments

Hitachi equipment commonly operates in:

• Quarry operations

• Mining environments

• Demolition sites

• High-hour construction applications

Seal failure in these environments can cause:

• Hydraulic pressure loss

• Contamination ingress

• Accelerated cylinder wear

• Increased fuel consumption

• Unplanned downtime

Quality seals protect not just the cylinder — but the entire hydraulic system.

Material & Performance Standards

Aftermarket hydraulic seals must withstand:

• High operating pressures

• Temperature fluctuations

• Abrasive contaminants

• Shock loading

WQParts supplies Hitachi cylinder repair components manufactured from high-performance materials such as polyurethane (PU), nitrile (NBR), PTFE, and other engineered compounds designed for durability and resistance to extrusion and wear.

Why Choose WQParts for Hitachi Seal Kits?

✔ Aftermarket components built for heavy-duty applications
✔ Precision-fit hydraulic repair solutions
✔ Competitive pricing
✔ Technical fitment assistance
✔ Fast fulfillment

We understand hydraulic system performance and the importance of proper seal selection in preventing premature failure.

Restore Hydraulic Performance with Confidence

Routine cylinder resealing prevents larger structural repairs and protects expensive hydraulic components. Browse our Hitachi seals and cylinder repair kits below or contact WQParts for assistance identifying the correct kit for your machine.