Our Peterbilt 337 Walk-in Vans (Step Vans) are available and ready for you now. Click on any of the Peterbilt 337 units shown below to review each unit’s details, including rear and/or sliding-side doors to meet your business’s needs. If you don't see the Peterbilt 337 Walk-in Vans (Step Vans) you need, then call us at 1-866-309-1962 today.