2027 Keystone Coleman Light18RX

Keystone publishes three weights for the Coleman Light 18RX: a shipping weight of 4,034 lb, a carrying capacity of 2,466 lb and a hitch weight of 515 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 Coleman 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 41 gal fresh, 34 gal gray and 34 gal waste, as Keystone lists them. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank is roughly 340 lb on the road before anything else is loaded. The tire size Keystone lists is ST205/75R14D.

Against the 9 Coleman Light floorplans profiled here, this one is the 3rd by Keystone’s shipping weight, in a range from 2,785 lb (17BX) to 5,925 lb (29BX). 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 Coleman Light 18RX. That page carries no model year, so the year comes from the roster page that links it, which lists the Coleman Light 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 18RX differs from the other eight Coleman Light floorplans. Most distinctive first. Each rank counts only the siblings that publish that field, and a figure most of them share is left out.

• Sleeping capacity, 2: smallest of nine; next are the 17RX and 21RX (3).
• Shipping weight (Keystone’s term), 4,034 lb: third-lightest of nine, between the 17RX (2,835 lb) and the 22BX (4,620 lb).
• Carrying capacity (Keystone’s term), 2,466 lb: third-largest of nine, between the 29BX (2,075 lb) and the 24RX (2,865 lb).
• Hitch weight as Keystone lists it, 515 lb: third-lightest of nine, between the 17BX (350 lb) and the 21RX (520 lb).
• Length, 22 ft 3 in: third-shortest of nine, between the 17RX (20 ft 5 in) and the 21RX (25 ft 4 in).
• Hitch weight as a share of shipping weight, 12.8%: shared with the 23TX; of nine, six smaller and one larger, nearest the 17BX (12.6%) and the 29BX (13.3%).

Next to the 17RX, the nearest lighter floorplan by shipping weight, the 18RX is 1,199 lb heavier by shipping weight, has 1,301 lb more carrying capacity, has a hitch weight 210 lb heavier, is 1 ft 10 in longer, stands 10 in taller, has a fresh tank 20 gal larger and sleeps one fewer; the two publish the same grey tank.

Next to the 22BX, the nearest heavier floorplan by shipping weight, the 18RX is 586 lb lighter by shipping weight, has 586 lb more carrying capacity, has a hitch weight 55 lb lighter, is 4 ft 6 in shorter, has a grey tank 34 gal smaller and sleeps five fewer; the two publish the same exterior height and fresh tank.

Coleman Light is one of the four Coleman series Keystone builds, and Keystone lists 9 Coleman Light floorplans for 2027. 9 have a complete Keystone figure set and are profiled here, from 2,785 lb to 5,925 lb shipping weight; the others are catalogued below with the reason against each. Keystone publishes shipping weight, carrying capacity and hitch weight for these trailers, and no GVWR.

Closest sibling: the Coleman Light 21RX, nearest on the published figures. It differs on 4 of the 5 fields both publish (this plan first): length 22 ft 3 in vs 25 ft 4 in; sleeps 2 vs 3; hitch weight 515 lb vs 520 lb; grey tank 34 gal vs 68 gal. They match on fresh tank.

All 9 Coleman Light floorplans: Coleman Light line hub.

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

Sourcing rules: methodology.