VOCATIONAL - Model 348 Heavy-duty Performance, Medium-duty Chassis The Peterbilt Model 340 is an extremely tough and versatile vocational truck with a GVW rating of over 33,000 pounds. From the frame to the fenders, it’s innovatively designed and carefully crafted to meet the rigorous daily chores of construction, crane, refuse and bulk delivery applications. Signature Peterbilt styling is apparent in the bumper, grille and sunvisor, and the interior is ergonomically designed for operator comfort and productivity. For serviceability, removable dash panels provide easy access to electrical and HVAC components. The Model 340 is available exclusively with air brakes for heavy duty configurations and a wide range of suspension and vocational options in both single and tandem axle configurations. In any configuration it’s a rugged performer and a profit producer. The Peterbilt Model 340 is one of the most durable and versatile trucks in its class, and offers the quality, dependability and resale value that only comes with a Peterbilt.