The 170" Sprinter - and the even longer 170 EXT - is the full-time-living platform: enough length for a fixed bed, a real galley, a garage and a bathroom without compromise. It also has more roof than any other van, which is why 170 owners run the largest solar arrays and the longest racks.

Length-specific parts here are cut to the 170 and the 170 EXT roof, including Premium and Premium Light Bar decks and bolt-in wall framing kits for the 2019-current chassis. A 170 EXT rack is a different part from a 170 rack - the extension adds real length behind the rear axle.

Watch total weight on a long build: a full-length rack, a 33-gallon water tank and a 15 kWh battery bank add up fast against the rear axle rating. See all lengths in Mercedes Sprinter Parts, or compare Sprinter 144.