Anderson Brothers provides premium quality Italian aftermarket gearing products. The company has been offering new and used trucks parts since 1935. The firm stores parts from various manufacturers, including Eaton, Fuller, Donaldson, Hendrickson, Spicer and Rockwell. It also houses a full line of rebuilt differentials and transmissions. Additionally, Anderson Brothers provides cabs and hoods from Kenworth, Mack, Peterbilt and Volvo. The firm imports replacement parts directly from Italy. Anderson Brothers has headquarters in Portland, Ore.