Since 1976, Portland Tractor Inc. has been a trusted construction supplier of rebuilt and used heavy construction machinery parts, components, and attachments, specializing in Caterpillar parts. With over 100,000 high-quality parts and attachments in stock, our expansive 10-acre yard features more than 60,000 square feet of covered space. We don’t just dismantle machines; we offer a wide range of attachments, tires, wheels, and parts to get your equipment up and running right away.