01 What makes it unique
Gulf Stream lists the Enlighten 21RK at 4,620 lb dry, a net carrying capacity of 2,940 lb and a tongue weight of 560 lb. It prints no GVWR for it.
It is 25' 6" long and 10' 4" high. Gulf Stream prints no tank capacity for it.
Among the 6 Enlighten floorplans Gulf Stream’s Enlighten model pages on gulfstreamcoach.com (no model year stated) lists with a published dry weight, it is number 5 from the lightest, in a range from 2,810 lb (Enlighten 17BH) to 5,460 lb (Enlighten 27BHS). Every figure in that comparison is Gulf Stream’s, read from the same set of model pages.
Every number on this page was read on 6 Nov 2026 from Gulf Stream’s own Enlighten model pages on gulfstreamcoach.com (no model year stated) for the Enlighten 21RK, which names no model year; the figures are shown as the maker published them, and no year is claimed for them.
How the 21RK differs from the other five Enlighten floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 4,620 lb: second-heaviest of six, between the 21RBS (4,360 lb) and the 27BHS (5,460 lb).
- Tongue weight, 560 lb: second-heaviest of six, between the 21RBS (400 lb) and the 27BHS (670 lb).
- Cargo capacity, 2,940 lb: third-largest of six, between the 27BHS (2,210 lb) and the 21RBS (3,027 lb).
- Tongue weight as a share of dry weight, 12.1%: third-largest of six, between the 17BH (11.7%) and the 17RB and 27BHS (12.3%).
- Length, 25 ft 6 in: third-longest of six, between the 21RBS (22 ft 11 in) and the 25BH (26 ft 7 in).
Next to the 21RBS, the nearest lighter floorplan by dry weight, the 21RK is 260 lb heavier by dry weight, has 87 lb less cargo capacity, has a tongue weight 160 lb heavier, is 2 ft 7 in longer and stands 10 in lower; the two publish the same interior height.
Next to the 27BHS, the nearest heavier floorplan by dry weight, the 21RK is 840 lb lighter by dry weight, has 730 lb more cargo capacity, has a tongue weight 110 lb lighter, is 4 ft 5 in shorter and stands 9 in lower; the two publish the same interior height.
02 Full specifications
Dimensions
- Exterior length
- 25' 6"
- Exterior height
- 10' 4"
- Exterior width
- 96"
- Interior height
- 80"
Weights
- Dry / unit base weight (UVW)
- 4,620 lb
- GVWR (max loaded)
- Not published by Gulf Stream
- Net cargo / payload (CCC)
- 2,940 lb
- Hitch / tongue weight
- 560 lb
Capacities
- Fresh water
- Not published by Gulf Stream
- Grey water
- Not published by Gulf Stream
- Black water
- Not published by Gulf Stream
Running gear
- Hitch type
- Bumper pull
- Tire size
- Not published by Gulf Stream
Sleeping & layout
- Sleeps
- Not published by Gulf Stream
- Factory grouping (as printed)
- Enlighten (Light Weight Trailers)
- Furnace
- 20,000 BTU
- Water Heater
- Tankless
- LP Tank
- 20 lbs
- Weight basis (as printed)
- Gulf Stream prints "Dry Weight", "Hitch Weight" and "Net Carrying Capacity" on this page with no unit on the figures (its own line listing states weights in lbs.; tank figures carry no unit). No GVWR is printed, so nothing is checked against one. Page footnote: "Specifications are approximate and subject to change. Check the label in your unit for actual weights and capacities."
- Model year
- Not stated by Gulf Stream; figures as published on Gulf Stream's site (https://www.gulfstreamcoach.com/products/light-weight/enlighten/model/21rk), read 6 Nov 2026
- Fresh water (as printed, no unit)
- 35
- Grey tank (as printed, no unit)
- 34
- Black tank (as printed, no unit)
- 33
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Size, with end view
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
03 The Enlighten floorplan family
Gulf Stream’s Enlighten model pages on gulfstreamcoach.com (no model year stated) lists 6 Enlighten floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Enlighten 17BH | 20' 11" | — | Profiled |
| Enlighten 17RB | 20' 11" | — | Profiled |
| Enlighten 25BH | 26' 7" | — | Profiled |
| Enlighten 21RBS | 22' 11" | — | Profiled |
| Enlighten 21RK | 25' 6" | — | Profiled |
| Enlighten 27BHS | 29' 11" | — | Profiled |
Gulf Stream’s Enlighten model pages on gulfstreamcoach.com (no model year stated) lists 6 Enlighten floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Gulf Stream does not publish for the Enlighten 21RK
Gulf Stream prints no GVWR, tire size, grey-tank, black-tank, sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
4,360 lb dry and Not published by Gulf Stream GVWR, against this model’s 4,620 lb and Not published by Gulf Stream.
5,460 lb dry and Not published by Gulf Stream GVWR, against this model’s 4,620 lb and Not published by Gulf Stream.
06 Loading it for a trip
Cargo capacity on the Enlighten 21RK is 2,940 lb.
07 Where this floorplan sits
Closest sibling: the Enlighten 21RBS, nearest on the published figures. It differs on 4 of the 4 fields both publish (this plan first): length 25 ft 6 in vs 22 ft 11 in; dry weight 4,620 lb vs 4,360 lb; cargo capacity 2,940 lb vs 3,027 lb; hitch weight 560 lb vs 400 lb.
| Enlighten plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Dry weight (lb) | 4,620 | 5 of 6 | 2,810–5,460 |
| Cargo capacity (lb) | 2,940 | 4 of 6 | 1,020–3,601 |
| Hitch weight (lb) | 560 | 5 of 6 | 330–670 |
| Length | 25 ft 6 in | 4 of 6 | 20 ft 11 in–29 ft 11 in |
Either side of it by dry weight: Enlighten 21RBS is 260 lb lighter (4,360 lb dry); Enlighten 27BHS is 840 lb heavier (5,460 lb dry).
| Nearest Enlighten siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Enlighten 21RK | 25 ft 6 in | — | 4,620 | — | 2,940 | 560 | — |
| Enlighten 21RBS | 22 ft 11 in | — | 4,360 | — | 3,027 | 400 | — |
| Enlighten 27BHS | 29 ft 11 in | — | 5,460 | — | 2,210 | 670 | — |
| Enlighten 25BH | 26 ft 7 in | — | 3,899 | — | 3,601 | 350 | — |
| Enlighten 17RB | 20 ft 11 in | — | 2,920 | — | 1,080 | 360 | — |
| Enlighten 17BH | 20 ft 11 in | — | 2,810 | — | 1,020 | 330 | — |
All 6 Enlighten floorplans: Enlighten line hub.
| Other lines, nearest by dry weight | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Enlighten 21RK | — | 4,620 | — | 25 ft 6 in |
| Ameri-Lite 221RK | — | 4,620 | — | 25 ft 6 in |
| Jay Flight 224BHW | 6,100 | 4,620 | 8 | 27 ft 1 in |
| Jay Flight SLX 264BH | 6,000 | 4,615 | 10 | 29 ft 3 in |
| Autumn Ridge 20FBS | 6,250 | 4,615 | 4 | 23 ft 8 in |
| Cherokee Wolf Pup Black Label 18PBBL | 5,610 | 4,615 | — | 23 ft 10 in |
| Sportsmen Show Stopper LE S242SBHSS | 6,000 | 4,628 | — | 26 ft 9 in |
Against the Enlighten 21RK: the Jay Flight 224BHW is 2 ft longer; the Jay Flight SLX 264BH is 5 lb lighter and 4 ft longer.
08 Common questions about the Enlighten 21RK
How much can the Enlighten 21RK carry?
2,940 lb.
What is the tongue weight of the Enlighten 21RK?
560 lb as published, 12% of the dry weight (median across 2,002 travel trailers here: 12%).
How long is the Enlighten 21RK?
25' 6" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
7 of the 18 fields this catalogue tracks are published for the Enlighten 21RK. Not published: GVWR, fresh tank, grey tank, black tank, sleeps, slide count, axle count, tire specification, awning, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: gulfstreamcoach.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 2 recall campaigns against the Enlighten line (a recall and a complaint are not the same thing).
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Enlighten line page.