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Since 1976 Portland Tractor Inc. (PTI) has been a leading supplier of Caterpillar rebuilt and used/salvage heavy equipment parts, New OEM Surplus parts, Aftermarket parts, components, and attachments. We've built our reputation by working hard and being honest with our customers. To us, honesty means being upfront with what we can do, what we can't do, then standing behind the quality of our product. Sticking to these principles has allowed Portland Tractor to build relationships that have become the cornerstone of our company today.

Located in the heart of the Pacific Northwest, our expansive yard is spread across 10 acres and includes over 60,000 square feet under the roof. Our yard holds not only the machines that we are currently dismantling, but also a wide selection of attachments, tires, wheels, and parts that can get your equipment up and running today.

Portland Tractor offers more than 25,000 different Caterpillar® part numbers and has over 100,000+ parts and components available in inventory. This makes it one of the largest and most diverse parts inventories for Caterpillar Used Parts in North America. Our experienced team manages this inventory using our computerized inventory system, automated parts sorting and storage systems, and a fleet of equipment. You can be sure our team has the parts you need to get up and running.

PTI Product Catalog

Digital Product Catalog

Want to explore our extensive range of OEM, used, and aftermarket parts?

What Sets Us Apart?

Experienced Team

We’ve been in business since 1976. Our team specializes in heavy equipment parts and can assist you with finding the parts you need.

Inventory Availability

With over 100,000 parts available in our inventory, we can ship parts direct to you immediately.

Quality Used Parts

All our parts are inspected by our experienced team of mechanics and welders. Our shop also features engine and transmission diagnostic equipment.


We offer quality parts and components that will save you money and keep your equipment running.

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