Jayco Pinnacle · 2025–202638KPTS

The 38KPTS is the stretched rear-living Pinnacle: the same rear living area and walk-around kitchen island as the 32RLTS, opened out to 41 feet for more room in the lounge and galley, with a king bedroom up front. It runs 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 a 17,700-pound GVWR against the 14,535-pound dry weight, leaving a 3,165-pound cargo capacity and a 2,870-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 75/87/50-gallon fresh/grey/black tanks are standard. At a starting MSRP around $129,000, with street pricing below placard, the 38KPTS is the rear-living Pinnacle for buyers who want the couples’ layout with more length and living space and tow with a properly rated three-quarter-ton or one-ton truck.

This floorplan has a verified factory record for 2 model years here, 2025 to 2026. 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 38KPTS on this page is highlighted.

This floorplan carries its water comfortably. A full 75-gallon fresh tank is roughly 20% of the 3,165-pound cargo capacity, leaving the 38KPTS with a usable gear budget even when you tow full.

The published dry pin weight of 2,870 pounds is 20% of this floorplan’s 14,535-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 17,700-pound GVWR the 38KPTS is towing 3,165 pounds more than its 14,535-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 50 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by GVWR, the 38KPTS sits 5 of 10 in the Pinnacle line: 17,700 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 36SSWS is 50 pounds lighter at 17,650 lb GVWR; and Pinnacle 38FBRK is 500 pounds heavier at 18,200 lb GVWR.

Against the 38KPTS: the Model Z 3420 is 5 lb lighter and 1 ft shorter and sleeps 3 more; the North Point 387FBTS is 50 lb lighter and 2 ft longer; the Cyclone 3511 is 100 lb heavier and sleeps 2 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 38KPTS. 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.