Choose from our line of aftermarket Peterbilt 330/335/337 radiators. Designed for optimal cooling and durability, radiators help to improve fuel efficiency on older, used 330 and 335 models, and maintain efficient cooling performance for newer 337 models. They come in materials like aluminum, copper, and brass, these radiators offer excellent heat transfer and corrosion resistance for reliable operation. We also offer radiator accessory parts, like mounting brackets and support rod bushings. .