2027 Keystone Cougar Half-Ton28RLI

Keystone publishes three weights for the Cougar Half-Ton 28RLI: a shipping weight of 9,179 lb, a carrying capacity of 1,821 lb and a hitch weight of 1,435 lb. Those are Keystone’s own terms, and this page keeps them. Keystone does not call the first figure dry or unloaded weight, does not say the hitch figure is measured dry, and publishes no GVWR for any Cougar Half-Ton floorplan, so none of the three is renamed here and no loaded rating is worked out from them. The trailer’s own federal weight label, inside the door, is the document that carries its UVW, cargo capacity and GVWR.

Tank capacities are 54 gal fresh, 60 gal gray and 30 gal waste, as Keystone lists them. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank is roughly 448 lb on the road before anything else is loaded. The tire size Keystone lists is ST225/75R15E; a fifth wheel puts its pin load into the truck bed, so it counts against the truck’s payload rather than its tow rating.

Against the 11 Cougar Half-Ton floorplans profiled here, this one is the 9th by Keystone’s shipping weight, in a range from 6,090 lb (21LBK) to 9,590 lb (30REP). Every figure in that comparison comes from the same Keystone page type for the same model year, so the comparison inside the series is like for like.

Every number on this page was read on 19 Oct 2026 from Keystone’s own floorplan page for the Cougar Half-Ton 28RLI. That page carries no model year, so the year comes from the roster page that links it, which lists the Cougar Half-Ton floorplans under the heading “2027 Floorplans”. Keystone notes that its website reflects the most recent production run and that features and specifications change during the year.

How the 28RLI differs from the other three Cougar Half-Ton fifth wheels. Most distinctive first. Each rank counts only the siblings that publish that field, and a figure most of them share is left out.

• Carrying capacity (Keystone’s term), 1,821 lb: smallest of four; next is the 26RES (2,060 lb).
• Hitch weight as Keystone lists it, 1,435 lb: lightest of four; next is the 26RES (1,540 lb).
• Hitch weight as a share of shipping weight, 15.6%: smallest of four; next is the 29MBD (17.5%).
• Shipping weight (Keystone’s term), 9,179 lb: second-lightest of four, between the 26RES (8,240 lb) and the 29MBD (9,325 lb).
• Length, 32 ft 8 in: second-shortest of four, between the 26RES (30 ft 11 in) and the 29MBD (33 ft 11 in).
• Sleeping capacity, 6: second-largest of four, between the 26RES and 30REP (4) and the 29MBD (10).

Next to the 26RES, the nearest lighter floorplan by shipping weight, the 28RLI is 939 lb heavier by shipping weight, has 239 lb less carrying capacity, has a hitch weight 105 lb lighter, is 1 ft 9 in longer, stands 1 in taller and sleeps two more; the two publish the same fresh tank and grey tank.

Next to the 29MBD, the nearest heavier floorplan by shipping weight, the 28RLI is 146 lb lighter by shipping weight, has 354 lb less carrying capacity, has a hitch weight 200 lb lighter, is 1 ft 3 in shorter and sleeps four fewer; the two publish the same exterior height, fresh tank and grey tank.

Keystone lists 15 Cougar Half-Ton floorplans for 2027. 11 have a complete Keystone figure set and no existing page here, and are profiled, from 6,090 lb to 9,590 lb shipping weight; the others are catalogued on this page with the reason against each. Keystone publishes shipping weight, carrying capacity and hitch weight for these trailers, and no GVWR.

Closest sibling: the Cougar Half-Ton 26RES, nearest on the published figures. It differs on 3 of the 5 fields both publish (this plan first): length 32 ft 8 in vs 30 ft 11 in; sleeps 6 vs 4; hitch weight 1,435 lb vs 1,540 lb. They match on fresh tank and grey tank.

All 11 Cougar Half-Ton floorplans: Cougar Half-Ton line hub.

8 of the 18 fields this catalogue tracks are published for the 28RLI. Not published: dry weight, GVWR, cargo capacity (CCC), exterior width, interior height, black tank, slide count, axle count, awning, air conditioning.

Sourcing rules: methodology.