Tim's AATCO Transmissions

Tim’s AATCO Transmissions is a locally owned transmission and clutch shop serving the greater Portland metro and beyond. After decades in the area, we have moved into a building we now own, with more space to take care of our customers. We specialize in manual and automatic transmissions, clutches, transfer cases, and differentials. We work on most makes and models, foreign and domestic, including diesel and heavy duty work trucks, fleets, and tough jobs other shops send our way. Straight answers. Honest pricing. Quality parts and skilled workmanship built to last.