2015 PETERBILT 337 CONTAINER DELIVERY UNIT. It is powered by a 250 h.p. Paccar Px7 engine and an Allison 6511278125 transmission. It has a 10000 Set-Forward Axle front axle and a 21000 Air-Ride Single Axle rear suspension. The body is a Galbreath Ch8000 with an 8,000-lb capacity, equipped with Controls Type: Manual Lever, Control Location: Dual Inside/Outside Controls, Pintle Hitch Apron, Strobe Light, Radio Hands-Free, Heated Mirrors, Power Door Locks, Air Horn, Seat Description: Driver air ride passenger bench, Front Bumper: Painted Steel, Exterior Sun Visor, Left Hand Steer.