Repair Seals and Seal Kits

Our Repair Hydraulic Seals and Seal Kits are designed for the complete overhaul and maintenance of hydraulic cylinders used in heavy machinery. These kits are ideal for repairing boom cylinders, arm cylinders, bucket cylinders, swing motors, and travel motors on a wide range of excavator brands, such as Caterpillar, Komatsu, Hitachi, Volvo, Doosan, Hyundai, Kobelco, and more.

•Rod seals

•Piston seals

•Dust seals

•Wear rings

•O-rings

•Back-up rings

These parts are made with premium-grade materials such as PU, NBR, PTFE, and reinforced rubber, providing excellent resistance to pressure, wear, heat, and oil.

Accurate dimensions for easy installation and OEM replacement.

Long lifespan even under extreme working conditions.

All necessary seals in one package — no missing parts.

Widely applicable to most mainstream excavator hydraulic systems.

Ready-to-ship models available for fast delivery worldwide.

Verify the correct model number and application before purchase.

We recommend professional installation for best results.

Store in cool, dry, and clean areas to maintain performance.

Q1: Can your repair kit replace the original parts?
A: Yes, our seals are strictly designed according to OEM specifications, with high dimensional accuracy and stable performance.

Q2: Can the seal kit be customized according to samples or drawings?
A: Yes. We support customizing non-standard seals according to samples, OEM numbers or equipment drawings.

Q3: How can I confirm that this repair kit is suitable for my equipment?
A: Provide the brand, model, cylinder position (such as boom cylinder) and photos, and we will confirm the model for you.

Q4: How long is the delivery cycle?
A: Conventional models are shipped within 1-3 days, and customized models are usually completed within 7-10 working days.