Heavy duty parts and accessories for the classic R model Mack series. R Model, RD Model, DM Window regulators, Interior & Exterior door handle replacements, Wiper Transmissions, Hood Cables, Speed & Tachometer Sensors, and much more. Parts for old model macks are something we specialize in and we carry a wide selection for modern and classic Macks. If you are restoring an old mack or just replacing parts that are not working we have you covered. Door parts, Interior parts, electrical and lighting can all be found and ordered right here.