Who We Are
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.
Take a behind-the-scenes tour of PTI and witness our commitment to precision and quality. Watch our video to see how we carry out detailed inspections, precision repairs, and final quality assurance tests.
Take a Tour of PTI
Cylinder Repair Shop
Built to Support the Mining & Construction Industries
Mining and construction operations face extreme demands, from high-performance requirements to unforgiving environments and strict safety regulations. PTI understands these challenges and provides solutions to keep your fleet operating efficiently:
- Extensive Inventory: Our stock includes high-quality used, new OEM, aftermarket, and rebuilt components for excavators, loaders, dozers, shovels, haul trucks, and articulated trucks.
- Reduced Downtime: Quick access to in-stock parts ensures minimal operational disruptions.
- Quality You Can Trust: Durable, high-performance parts designed to withstand the toughest mining conditions.
- Cost-Effective Solutions: Competitive pricing and rebuild programs help extend the lifespan of your equipment and manage maintenance costs.
With over 40 years in business, PTI has developed a global reach to source and supply high-quality parts to operations worldwide. Our proactive inventory management ensures availability for critical components like final drives, cylinders, engines, transmissions, and axles—helping you avoid costly delays and unexpected breakdowns.
One of the Largest Inventories in North America
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. You can be sure our team has the parts you need to get up and running.
Digital Product Catalog
Want to explore our extensive range of OEM, used, and aftermarket parts?
What Sets Us Apart?
1000+ Years of Industry Experience
With more than 50 years in business and a team whose combined expertise exceeds 1,000 years, PTI brings deep industry knowledge and specialized training to every solution. Our experience helps customers reduce downtime, control costs, and keep equipment operating at peak performance.
10,000+ Components Rebuilt Since 1976
For nearly five decades, PTI has produced OEM-Grade rebuilds backed by advanced diagnostics, detailed inspections, and rigorous quality controls. Our proven rebuild process ensures components are restored to OEM-Grade specifications and ready for reliable service in the field.
100,000+ Parts In Stock & Available
With more than 100,000 parts, components, and attachments in stock, PTI offers one of the industry's largest selections of rebuilt, used, OEM surplus, and aftermarket solutions, ready to ship when you need them.
7 Stocking Branches
A strategically located branch network and extensive inventory help ensure fast delivery, local support, and the right parts when and where you need them. With seven stocking locations across North America, PTI provides responsive service and dependable access to the parts & components your operation relies on.