Aftermarket & OEM parts for Bobcat, CAT, Komatsu and more

Can't find your part? Call/Email us and we'll source it

🚚 Fast U.S. Shipping — Most orders ship within 1-2 business days if in stock

📞 Sales: (262) 679-4994 · Mon–Fri 8am–4:30pm CST

Can't Find Your Part? We'll Source It.

Call or email us with your part number or spec and we'll track it down for you.

Bobcat, CAT, Komatsu & More

Aftermarket replacement parts that meet or exceed OEM specs — at competitive prices.

Industrial-Grade Hydraulic Parts, Shipped Fast

Cylinders, seal kits, bushings & bearings for Bobcat, CAT, Komatsu and more — in stock and ready to ship.

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About Us

Built by people who know hydraulics.

Hydraulic Parts Online was founded in December 2024 in Muskego, Wisconsin — but the experience behind it goes back much further.

After years of hands-on hydraulic repair work with American Hydraulics, we saw firsthand how hard it could be to source quality replacement parts quickly. Machines sitting idle waiting on parts is expensive. We knew there had to be a better way — so we built it.

Today, Hydraulic Parts Online is a dedicated online source for aftermarket hydraulic components, serving businesses, repair shops, contractors, farmers, and equipment owners across the United States.


What we supply

We stock a wide range of aftermarket hydraulic parts for heavy equipment and industrial applications:

  • Hydraulic cylinders
  • Seal kits
  • Bushings and pins
  • Pumps and motors
  • Valves and fittings
  • Construction and agricultural equipment components

Whether you're sourcing a single seal kit or stocking parts for an entire fleet, we work to make the process as straightforward as possible — with competitive pricing, nationwide shipping, and a growing catalog of in-stock parts.


Why customers choose us

We understand downtime. When a machine goes down, every hour matters. That's why we ship in-stock orders within 1-2 business days and work hard to keep the parts you need on hand.

We know the parts. When you call or email us, you're talking to people with real hydraulic repair experience — not a call center. We can help you confirm compatibility, track down hard-to-find parts, and make sure you're ordering the right component the first time.

We're easy to reach. Phone, email, or contact form — we respond promptly and actually answer your questions. Good service still matters to us.


Get in touch

We're based in Muskego, WI and serve customers nationwide.

Phone: (262) 679-4994 Email: orders@hydraulicpartsonline.com Hours: Monday–Friday, 8am–4:30pm CST

Can't find the part you need? Reach out and we'll do our best to source it for you.

Thank you for supporting Hydraulic Parts Online. We appreciate the opportunity to earn your business.

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