2026 HeartlandBighorn 36RK

The 36RK hands the best real estate in the coach to the kitchen: the galley spans the rear wall with the residential GE suite — the 21-cubic-foot refrigerator on its 1,800-watt inverter, the Profile range, the convection microwave with air fryer — while three slides open the living area amidships and the bedroom holds the front. Two awnings (16 and 15 feet) cover the camp side, and the grey tank runs 82.5 gallons for the dish-and-shower load a working kitchen creates.

The platform is the full Bighorn build: 12-inch I-beam drop frame, 102-inch wide-body with CoreShield 2-inch laminated walls, painted front cap, frameless windows, TrussXL truss under the limited-lifetime membrane, ThermaShield zero-degree package with the 40,000-BTU furnace and heated ducted underbelly, dual 15,000-BTU Whisper Quiet air conditioners, tankless water heater, six-point hydraulic auto-leveling and the rest of the mandatory Premium Package. The printed 17,300-pound GVWR equals 14,465 dry plus 2,835 cargo exactly on tandem 8,000-pound axles.

Two source notes ride this record: RVUSA and the early-2026 print carry a stale weight set (the June-2026 dealer-network brochure matches the current factory page exactly, which is what is used), and the sleeps figure spreads — factory four against the June brochure’s two — resolved to the factory. The main-ceiling figure prints 8-foot-4 here against 8-foot-6 on most siblings. At a 2,600-pound pin, this is one-ton work.

Heartland's Bighorn line — the flagship luxury fifth wheel of the relaunched range: seven 2026 floorplans, every one a 102-inch wide-body on a 12-inch steel I-beam drop frame with a painted fiberglass front cap, CoreShield laminated sidewalls in high-gloss gel coat, the ThermaShield zero-degree package with a 40,000-BTU furnace, two 15,000-BTU Whisper Quiet air conditioners, and a mandatory Premium Package that includes six-point hydraulic auto-leveling, a GE 21-cubic-foot residential refrigerator with an 1,800-watt inverter and a GE appliance suite. All seven plans are profiled in depth on the Bighorn hub with verified weights.

A full 75-gallon fresh tank is about 626 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 22% of the Bighorn 36RK’s 2,835 lb cargo capacity, leaving 2,210 lb (552 lb per rated berth). Across 7 Bighorn floorplans the water share runs 21% to 27%, and 4 give up more than this one. Nearest on that share: Bighorn 31RL at 21% and Bighorn 40DB at 23%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).

Closest sibling: the Bighorn 39RK, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 40 ft 5 in vs 43 ft 3 in; dry weight 14,465 lb vs 15,200 lb; GVWR 17,300 lb vs 18,200 lb; cargo capacity 2,835 lb vs 3,000 lb; dry hitch weight 2,600 lb vs 2,960 lb; grey tank 82 gal vs 87 gal. They match on sleeps, fresh tank and black tank.

Either side of it by GVWR: Bighorn 31RL is 1,300 lb lighter (16,000 lb GVWR); Bighorn 38RE is 695 lb heavier (17,995 lb GVWR).

All 7 Bighorn floorplans: Bighorn line hub.

Against the Bighorn 36RK: the North Point 365RKTS sleeps 1 fewer; the Wolf Pack 411STAY is 10 lb heavier and 5 ft longer; the Nightfall 343NHD is 50 lb lighter.

16 of the 18 fields this catalogue tracks are published for the Bighorn 36RK. Not published: slide count, awning.

Sourcing rules: methodology.