01 What makes it unique
Winnebago lists the 2025 M-Series 1923RB at 4,424 lb dry, a GVWR of 6,000 lb and a tongue weight of 432 lb. Winnebago prints no cargo carrying capacity for it, so none is given here; the federal label inside the trailer carries one.
It is 23'11" long and 10'6" high. Winnebago prints its tanks as 31 gal fresh, 25 gal grey, 25 gal black.
Among the 3 M-Series floorplans Winnebago’s 2025 M-Series brochure lists with a published dry weight, it is number 1 from the lightest, in a range from 4,424 lb (M-Series 1923RB) to 4,590 lb (M-Series 2326MBBH). Every figure in that comparison is Winnebago’s, for the same model year.
Every number on this page was read on 6 Nov 2026 from Winnebago’s 2025 M-Series brochure, the maker’s own dated document for model year 2025.
How the 1923RB differs from the other two M-Series floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 4,424 lb: lightest of three; next is the 2326RK (4,468 lb).
- Length, 23 ft 11 in: shortest of three; next are the 2326MBBH and 2326RK (26 ft 7 in).
- Sleeping capacity, 3: smallest of three; next is the 2326RK (4).
- Tongue weight, 432 lb: second-lightest of three, between the 2326RK (412 lb) and the 2326MBBH (528 lb).
- Tongue weight as a share of dry weight, 9.8%: second-smallest of three, between the 2326RK (9.2%) and the 2326MBBH (11.5%).
Next to the 2326RK, the nearest heavier floorplan by dry weight, the 1923RB is 44 lb lighter by dry weight, has a tongue weight 20 lb heavier, is 2 ft 8 in shorter and sleeps one fewer; the two publish the same GVWR, exterior height, interior height, fresh tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 23'11"
- Exterior height
- 10'6"
- Exterior width
- 7'
- Interior height
- 6'4"
Weights
- Dry / unit base weight (UVW)
- 4,424 lb
- GVWR (max loaded)
- 6,000 lb
- Net cargo / payload (CCC)
- Not published by Winnebago
- Hitch / tongue weight
- 432 lb
Capacities
- Fresh water
- 31 gal
- Grey water
- 25 gal
- Black water
- 25 gal
Running gear
- Hitch type
- Bumper pull
- Tire size
- 235/75R15C
Sleeping & layout
- Sleeps
- 3
- Model year (as printed)
- floorplan caption "2025 M-SERIES" with plan "1923RB" set beside it (page layout)
- Axles
- 2 @ 3,000
- Hitch Height
- 24"
- LP Capacity (lbs.)
- 20
- Water Heater Capacity (gal.)
- 6
- Holding Tank Capacity - Gray 1 (gal.)
- 25
- Holding Tank Capacity - Gray 2 (gal.)
- N/A
- Furnace (BTU)
- 18,000
- Weight basis (as printed)
- Dry Weight / Dry Hitch Weight / GVWR; brochure footnote 1: exterior height "is based on the curb weight of a typically equipped unit"
- Awning
- 16'
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
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (6,000 lb) and the upper loaded tongue estimate (900 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433).
03 The M-Series floorplan family
Winnebago’s 2025 M-Series brochure lists 3 M-Series floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| M-Series 1923RB | 23'11" | 3 | Profiled |
| M-Series 2326RK | 26'7" | 4 | Profiled |
| M-Series 2326MBBH | 26'7" | 5 | Profiled |
Winnebago’s 2025 M-Series brochure lists 3 M-Series floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What Winnebago does not publish for the M-Series 1923RB
Winnebago prints no cargo carrying 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
4,468 lb dry and 6,000 lb GVWR, against this model’s 4,424 lb and 6,000 lb.
07 Where this floorplan sits
Closest sibling: the M-Series 2326RK, nearest on the published figures. It differs on 4 of the 7 fields both publish (this plan first): length 23 ft 11 in vs 26 ft 7 in; sleeps 3 vs 4; dry weight 4,424 lb vs 4,468 lb; hitch weight 432 lb vs 412 lb. They match on GVWR, fresh tank and black tank.
| M-Series plans | This plan | Position, low to high | Range |
|---|---|---|---|
| Dry weight (lb) | 4,424 | 1 of 3 | 4,424–4,590 |
| Hitch weight (lb) | 432 | 2 of 3 | 412–528 |
| Length | 23 ft 11 in | 1 of 3 | 23 ft 11 in–26 ft 7 in |
| Sleeps | 3 | 1 of 3 | 3–5 |
Either side of it by GVWR: M-Series 2326MBBH matches it at 6,000 lb GVWR.
| Nearest M-Series siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| M-Series 1923RB | 23 ft 11 in | 3 | 4,424 | 6,000 | — | 432 | 31 |
| M-Series 2326RK | 26 ft 7 in | 4 | 4,468 | 6,000 | — | 412 | 31 |
| M-Series 2326MBBH | 26 ft 7 in | 5 | 4,590 | 6,000 | — | 528 | 31 |
All 3 M-Series floorplans: M-Series line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry or base (lb) | Sleeps | Length |
|---|---|---|---|---|
| M-Series 1923RB | 6,000 | 4,424 | 3 | 23 ft 11 in |
| Coachmen Apex Nano 203RBK | 6,000 | 4,158 | — | 23 ft 5 in |
| Casita 24′ Discovery FM | 6,000 | 4,300 | — | 24 ft 3 in |
| Colt 20DB | 6,000 | 4,315 | 8 | 24 ft 7 in |
| Connect Mini CM221RB | 6,000 | 5,090 | 5 | 27 ft 3 in |
| Coyote 23CFK | 6,000 | 4,240 | — | 24 ft 10 in |
| Flying Cloud 23FB | 6,000 | 5,000 | 4 | 23 ft 11 in |
Against the M-Series 1923RB: the Colt 20DB sleeps 5 more.
08 Common questions about the M-Series 1923RB
How much does the M-Series 1923RB weigh?
4,424 lb dry; 6,000 lb GVWR, the most it may weigh loaded.
What is the tongue weight of the M-Series 1923RB?
432 lb as published, 10% of the dry weight (median across 2,002 travel trailers here: 12%).
What size tow vehicle does the M-Series 1923RB need?
A tow rating of at least 6,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the M-Series 1923RB sleep?
It is rated to sleep 3. 2 of the 3 M-Series floorplans that publish a count sleep more.
What are the tank capacities on the M-Series 1923RB?
Fresh 31, grey 25, black 25 gallons. Off hookups, fresh water runs out first.
How long is the M-Series 1923RB?
23'11" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
14 of the 18 fields this catalogue tracks are published for the M-Series 1923RB. Not published: cargo capacity (CCC), slide count, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: winnebago.com, library.rvusa.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
No recall campaign or owner complaint in our NHTSA data names the M-Series line. Read that as no result found, not as a clean record.
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 M-Series line page.