2026 Keystone Montana3100RL

The 3100RL is the floorplan Keystone built the redesigned 2026 Montana around. It is a widebody — five inches wider inside than a standard fifth wheel — and a rear-living layout aimed squarely at couples who live in the main room rather than the bedroom. A wall of windows wraps the rear lounge around a 55-inch 4K TV with a JBL 2.1 soundbar and subwoofer and a fireplace, a solid-surface waterfall island anchors the galley, and a hidden swing-out pantry and a slide-out "Deskette" desk-and-chairs add residential function.

It is also the most heavily equipped Montana on cooling and chassis. Where the rest of the luxury line ships with a single 15,000-BTU air conditioner, the 3100RL carries three — an 18,000-BTU Furrion Chill Cube heat-pump main plus two 13,500-BTU units — and rides on Curt TCS 8,000-pound axles with Curt anti-lock brakes and a Helux pin box rather than the Dexter/MORryde running gear of the other plans. A 50-amp power-cord reel and electric dump valves are standard, and the structural warranty steps up to five years on the new build.

RVUSA lists a 3,970-pound payload and a 3,000-pound dry pin; at a dealer-typical street price well below the placard, it sits at the accessible end of the luxury line on price while leading it on width and equipment. Because the 3100RL is a brand-new widebody on its own chassis, the dry weight and GVWR shown here are derived and flagged — weigh the loaded coach and confirm the build sticker before matching it to a truck.

Montana is Keystone's flagship luxury fifth wheel and the best-selling luxury fifth wheel in North America. The line runs to fifteen floorplans for 2026; the six highest-demand layouts are profiled here in full, and the rest — along with the lighter, lower-profile Montana High Country sub-line — are catalogued on the line hub. The 3100RL on this page is highlighted; each other profiled plan links to its own page.