2027 Keystone Coleman Light21RX

Keystone publishes three weights for the Coleman Light 21RX: a shipping weight of 4,780 lb, a carrying capacity of 1,720 lb and a hitch weight of 520 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, 68 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 6th 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 21RX. 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 21RX 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.

• Hitch weight as a share of shipping weight, 10.9%: second-smallest of nine, between the 17RX (10.8%) and the 24RX (11.7%).
• Carrying capacity (Keystone’s term), 1,720 lb: third-smallest of nine, between the 17BX (1,215 lb) and the 22BX (1,880 lb).
• Shipping weight (Keystone’s term), 4,780 lb: fourth-heaviest of nine, between the 24RX (4,635 lb) and the 23TX (4,960 lb).
• Hitch weight as Keystone lists it, 520 lb: fourth-lightest of nine, between the 18RX (515 lb) and the 24RX (540 lb).
• Length, 25 ft 4 in: fourth-shortest of nine, between the 18RX (22 ft 3 in) and the 22BX (26 ft 9 in).
• Sleeping capacity, 3: shared with the 17RX; of nine, one smaller and six larger, nearest the 18RX (2) and the 24RX (4).
• Grey tank, 68 gal: largest of nine, level with the 22BX, 24RX and 29BX; next are the 17BX, 17RX and three others (34 gal).

Next to the 24RX, the nearest lighter floorplan by shipping weight, the 21RX is 145 lb heavier by shipping weight, has 1,145 lb less carrying capacity, has a hitch weight 20 lb lighter, is 3 ft 5 in shorter and sleeps one fewer; the two publish the same exterior height, fresh tank and grey tank.

Next to the 23TX, the nearest heavier floorplan by shipping weight, the 21RX is 180 lb lighter by shipping weight, has 1,820 lb less carrying capacity, has a hitch weight 115 lb lighter, is 2 ft 6 in shorter, has a grey tank 34 gal larger and sleeps three 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 24RX, nearest on the published figures. It differs on 3 of the 5 fields both publish (this plan first): length 25 ft 4 in vs 28 ft 9 in; sleeps 3 vs 4; hitch weight 520 lb vs 540 lb. They match on fresh tank and grey tank.

All 9 Coleman Light floorplans: Coleman Light line hub.

8 of the 18 fields this catalogue tracks are published for the 21RX. Not published: dry weight, GVWR, cargo capacity (CCC), exterior width, interior height, black tank, slide count, axle count, awning, air conditioning.

Sourcing rules: methodology.