The Sprinter 3900 is sure to turn heads with it’s spacious and bright interior. Its main bedroom has the 6.4-ft upper deck ceiling common to the Sprinter line. A large window adds to the spacious feel. The 3900 DBL’s rear bedroom has a sleeper sofa and two flip-down bunks. Keystone says it can play the role of a second living area or even private office space. Overhead, a loft can sleep an adult couple or children as needed. The galley of the 3900 DBL has a 12 cubic-foot (340-liter) refrigerator, solid-surface countertops, and an oven suitable for preparing family-sized meals. Deep drawers and compartments with motion lights furnish storage for food, utensils, and cookware. 

Standard electronic features in the Sprinter 3900 DBL include a KeyTV multisource signal controller, a SolarFlex solar panel system with 100-amp-hour Dragonfly lithium batteries, and iN-Command Lite control panels.