Your #1 source for affordable oem surplus, aftermarket, used and rebuilt Cat® and caterpillar® parts

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Don’t know your part number? We can help. Answer a few questions and let our Part Concierge track it down for you.

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Off Road’s Parts Specialists are Cat© part experts. Contact us today and we will help you source anything. Even if it’s not on our site.

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Do you have inventory that is currently surplus to your needs? Off Road has decades of experience buying surplus inventory.

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Price, Selection and Service That Can't Be Beat

Our Parts Specialists are dedicated to getting you the part you need at the price you want.Start Your Search
Caterpillar 938 Wheel Loader

Caterpillar® Replacement Parts Network

Off Road Equipment Parts is the industry leader in networking with suppliers and providing replacement parts for Caterpillar equipment. We have partnered with dozens of additional suppliers and have the ability to acquire thousands of original OEM surplus, new, rebuilt and used parts for Caterpillar equipment. By utilizing our vast inventory of 100,000+ genuine Caterpillar surplus parts, and our extensive supplier network, you are sure to find the parts you need. This makes us your one-stop-shop for all your Caterpillar parts needs.

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Cat Oil Filter

Caterpillar® Parts Experts

Every Cat© surplus part in stock undergoes a painstakingly detailed inspection process and is classified into one of five condition codes so that you can be sure you’re getting exactly what you expect. Buying and reselling surplus parts is our specialty. We purchase parts at exceptional prices and forward the savings to you.

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We're the Best at What We Do

But don't take our word for it. See why our customers love working with us.
Sales Office
"Ty is the best parts salesman I have ever had the pleasure to work with. This man is a wealth of knowledge."
- Fred Holmes
Genuine Cat Seal Kit
"In my opinion, Off Road Equipment Parts and their staff have been a great asset to us for a long time, and I will make sure to pass that on to anyone needing quality parts and great customer service."
- Rodney Perreira Jr.
Off Road Equipment Parts Mobile App
"Your cooperation has helped to keep our operation running smoothly and has led to a profitable relationship between our two companies."
- Alex Zoltak

Your Online Parts Search Made Easy

Our powerful part search and order management software helps make your job a little easier.
Searching For Cat Parts

Your Online Parts Search Made Easy

  • Hundreds-of-thousands of surplus OEM and aftermarket parts at your fingertips
  • Instant price and availability
  • Available 24 hours a day, 7 days a week
  • Same low prices and part options you would get from our sales team
Cat Parts Online

Online Order Management System

  • Compare the general availability of all products based on condition, location, and price
  • Blind-ship your orders
  • Instant shipment tracking information after your order has shipped
  • Review past orders and print invoices
  • Instant communication with our Parts Specialists using the simple Live Chat feature

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