2026 Keystone Montana3231CK

The 3231CK is a triple-slide rear-living Montana built around its galley. A solid-surface kitchen island sits between two pull-out pantries — unusual storage for a couples’ plan — with a dual-sink vanity in the bath, a private front bedroom with a king bed, and a rear lounge running a hide-a-bed sofa, power theater seating and a 5,000-BTU fireplace under a 50-inch TV. An outside kitchen adds a second cooking station for the campsite.

On weight it is one of the easier luxury Montanas to tow. RVUSA lists a 2,725-pound dry pin and a 3,511-pound payload, and a dealer-listed 13,169-pound dry weight derives a GVWR near 16,680 pounds — well under the 18,000-pound rating that the larger plans carry. A single 15,000-BTU Coleman Mach heat-pump air conditioner is standard (a triple-15K CX3 package is optional), with a 35,000-BTU furnace, a 16-gallon water heater and an 18-cubic-foot residential refrigerator on a 2,000-watt inverter.

At an MSRP of $121,013 it sits just above the 3123RL entry, and dealers discount it heavily — street prices near $99,000 are common. It is the Montana for a couple who wants the brand’s luxury build and a storage-rich galley without the length, weight or price of the full-timer plans.

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 3231CK on this page is highlighted; each other profiled plan links to its own page.

This floorplan carries its water comfortably. A full 70-gallon fresh tank is roughly 17% of the 3,511-pound cargo capacity, leaving the 3231CK with a usable gear budget even when you tow full.

The published dry pin weight of 2,725 pounds is 21% of this floorplan’s 13,169-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.

Nothing above changes the ceiling. Loaded to its 16,680-pound GVWR the 3231CK is towing 3,511 pounds more than its 13,169-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.

Tank balance is generous here: 70 gallons of fresh against 88 grey and 49 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by GVWR, the 3231CK sits 4 of 13 in the Montana line: 16,680 pounds against a line that runs from 16,480 to 18,000 pounds. That position is the useful thing to know, because the plans immediately either side of it are the real alternatives.

Either side of it in the same line: Montana 3123RL is 100 pounds lighter at 16,580 lb GVWR; and Montana 3623EB is 45 pounds heavier at 16,725 lb GVWR.

Against the 3231CK: the Columbus 388FKH is 5 lb heavier and 5 ft longer; the Montana High Country 385BR is 5 lb heavier and 3 ft longer and sleeps 6 more; the Puma Mesa 388FKH is 5 lb heavier and 5 ft longer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.

Those are the nearest fifth wheels from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.

For scale, the Montana floorplans profiled here run 12,881 to 15,644 pounds dry and 35 to 43 feet of exterior length across 13 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.

Every profiled floorplan in this line, with the full weight table, is on the Montana line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 16 of them for the 3231CK. The rest are not shown, because the alternative is reading a figure across from a sibling floorplan or from what the segment usually does — and a number nobody published is worth less than an admitted gap.

Not published for this floorplan: tire specification, awning. If you find one of these in a manufacturer document for this plan, it belongs on this page.

The completeness figure at the foot of this page (97%) measures the same thing on the full field set: it is a measurement of how much this floorplan’s manufacturer publishes, not of how much research went into the page.

How every figure here was sourced and checked is set out on the methodology page.