Winnebago Sunstar 31B
Class Abuilt 2020– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$214,000MSRP today
Still in production — a used 2023 would run roughly $147,700.
THE SPECS
Length31.2 ft
Height (incl. A/C)12.2 ft
Width8.7 ft
Interior height6.8 ft
GVWR22,000 lb
Dry weightnot published
Sleeps7
Slide-outs1
Fresh water70 gal
Grey water57 gal
Black water41 gal
Air conditioning15,000 BTU
Awning19 ft
Fuel80 gal
Engine / chassisFord F53, 7.3L PFI V8 gas, TorqShift 6-speed automatic (26,000-lb GCWR)
Generator4,000-watt gas (5,500-watt with Cooling Upgrade)
A missing row means the maker never published that figure — unknown, not zero.
WHERE PEOPLE SLEEP
- 1× Queen bed(Permanent)60×75
- 2× Bunk beds(Permanent)30×73
- 1× Hi-Lo dinette(Convertible)42×73
- 1× Sofa/bed(Convertible)40×66
- 1× Powered StudioLoft bed (optional)(Stow-away)48×80
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed
Winnebago (Mixed tier): Winnebago Motorhomes (Forest City, IA)
YEAR BY YEAR — WHAT CHANGED
| YEARS | GVWR | DRY | MSRP |
|---|---|---|---|
| 2020–22 | 18,000 lb | — | $214,022 |
| 2023– | 22,000 lb | — | $214,022 |
- 2020Earliest model year verified from a Winnebago brochure
- 2023Not offered
- 2025Returned on the 22,000-lb F53 chassis, wide-body 8'8.5"
FINDING ONE
Findable — a few listed nationwide most weeks. Why: still in production. Estimated from build volume and production span — not a count of live listings.
THE READ
The only bunk-bed Sunstar - sleeps seven in a 31-foot gas coach.
OTHER SUNSTAR FLOORPLANS
26HE · 16,000 lb · sleeps 427N · 18,000 lb · sleeps 527P · 18,000 lb · sleeps 629V · 18,000 lb · sleeps 530T · 18,000 lb · sleeps 531KE · 16,000 lb · sleeps 432M · 18,000 lb · sleeps 632Y · 18,000 lb · sleeps 633K · 22,000 lb · sleeps 634R · 22,000 lb · sleeps 635B · 22,000 lb · sleeps 635F · 22,000 lb · sleeps 635U · 22,000 lb · sleeps 636Y · 22,000 lb · sleeps 6the whole line →
Is the 31B your #1 — or just a spec sheet?
These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about — set your priorities as sliders and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.
Rank it against your setup →Data compiled from manufacturer spec sheets, retrieved 2026-07.