Jayco Pinnacle · 2024–202738FBRK

The 38FBRK combines two features buyers ask for: a residential ‘RK’ kitchen across the rear wall and a private ‘FB’ master bath up front, with a half-bath added amidships for a bath-and-a-half. The raised front holds a king bedroom with its own bath, the living area sits in the middle and the full galley runs across the back. It opens on three slide-outs and sleeps four. The equipment is the standard Pinnacle package — a GE 21-cubic-foot 12-volt residential refrigerator, a GE Profile 24-inch range and 30-inch convection microwave, solid-surface counters and a fireplace — on the 102-inch wide-body chassis with Dexter axles, six-point hydraulic auto-leveling and a MORryde LRE-4000 suspension.

Jayco publishes an 18,200-pound GVWR against the 15,448-pound dry weight, leaving a 2,752-pound cargo capacity and a 2,940-pound dry pin. Two 15,000-BTU Whisper Quiet air conditioners, a 40,000-BTU furnace, an on-demand tankless water heater, the Overlander II solar package and 75/87/87-gallon fresh/grey/black tanks — with generous grey and black capacity — are standard. At a starting MSRP around $133,000, with street pricing below placard, the 38FBRK is the Pinnacle for buyers who want a residential rear kitchen, a private front bath and a bath-and-a-half in a luxury full-profile coach, towed with a one-ton truck.

This floorplan has a verified factory record for 4 model years here, 2024 to 2027, and the specification does not hold still. Across those years GVWR ranges from 18,000 lb in 2024 to 18,200 lb in 2026, a spread of 200 lb; dry weight ranges from 14,995 lb in 2024 to 15,475 lb in 2027, a spread of 480 lb; dry pin weight ranges from 2,940 lb in 2024 to 3,035 lb in 2027, a spread of 95 lb. The factory tire size changes over the run (215/75R17.5'H' then ST215/75R17.5'H'), and the load-range letter in that code is part of the axle rating. That is why each model year has its own page below, carrying only its own published figures. Nothing on a year page is copied across from a neighbouring year.

Pinnacle is Jayco's flagship luxury full-profile fifth wheel — a cross-shop against Grand Design's Solitude, Keystone's Montana High Country, Alliance's Paradigm and Brinkley. The 2026 line runs to six floorplans, all profiled in full and linked below. The 38FBRK on this page is highlighted.

This floorplan carries its water comfortably. A full 75-gallon fresh tank is roughly 23% of the 2,752-pound cargo capacity, leaving the 38FBRK with a usable gear budget even when you tow full.

The published dry pin weight of 2,940 pounds is 19% of this floorplan’s 15,448-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 18,200-pound GVWR the 38FBRK is towing 2,752 pounds more than its 15,448-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.

Tank balance is generous here: 75 gallons of fresh against 87 grey and 87 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by GVWR, the 38FBRK sits 6 of 10 in the Pinnacle line: 18,200 pounds against a line that runs from 16,600 to 18,800 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: Pinnacle 38KPTS is 500 pounds lighter at 17,700 lb GVWR; and Pinnacle 37MDQS is 200 pounds heavier at 18,400 lb GVWR.

Against the 38FBRK: the North Point 377RLBH is 100 lb lighter and sleeps 3 more; the Cedar Creek 381MUD is 200 lb lighter and sleeps 4 more. 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 Pinnacle floorplans profiled here run 13,545 to 15,870 pounds dry and 36 to 44 feet of exterior length across 10 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 Pinnacle line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 17 of them for the 38FBRK. 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: interior height, tire size (a tire description is published, a size is not). 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 (95%) 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.