Winnebago·Class B·2025

Winnebago Solis 59PX

Name: Winnebago Solis 59PX
Brand: Winnebago
Price: 138000 USD

4.4across 2,400 reviews on retail listings

|19 ft|8,400 lbs|Sleeps 2

The Winnebago Solis 59PX is a compact, pop-top Class B built on the Ram ProMaster. Its defining feature is the power pop-top roof that adds standing headroom and an optional sleeping loft.

SoloCouplesStealth CampingUrban

MSRP from

$138,000

$$$ Premium

ChassisRam ProMaster 3500

Engine3.6L V6 Gas

Solar220W

Slide-Outs0

Specifications

Length

19 ft

Weight

8,400 lbs

Sleeps

Fresh Water

21 gal

Gray Water

10 gal

Black Water

5 gal

Features

Power Pop-Top Roof

Wet Bath

Induction Cooktop

Lithium Battery

Fold-Down Rear Bed

MaxxAir Fan

Outdoor Shower

Highlights

Pop-top adds 24 inches of headroom — makes a huge difference in a small van

At 19 feet, it fits in a regular parking space and drives like a large van

Lithium battery system is ready for boondocking out of the box

What owners report

Summarized from Reddit and owner forums — not a first-hand test.

The Winnebago Solis 59PX is the family-friendly pop-top Class B: built on the wide, front-wheel-drive RAM ProMaster, it uses a pop-top roof and a convertible Murphy+ bed to sleep four in a 21-foot van that most rivals can only sleep two in. Add an onboard generator, a roof AC, and a clever full-height rear garage, and you get a van that works for a couple who occasionally brings kids or guests — without paying the premium that AWD Sprinter and Transit adventure rigs command. Around $138K, it's one of the most practical do-everything vans Winnebago builds.

Living with it, the ProMaster's strengths and quirks both show. The chassis is roomy, low to step into, easy to service at any gas-engine dealer, and the pop-top's side and rear screens deliver such good airflow that owners often skip the AC until temperatures climb into the 90s. But the PX trim makes trade-offs: fitting the rooftop AC costs you the Maxxair roof fan the 59P keeps, the large tanks and generator hang below the frame and behind the axle (hurting clearance), and the van is front-wheel-drive only, so deep snow, sand, and rough trails are out. ProMaster electrical gremlins — doors that won't lock, parking lights flashing — are a known RAM annoyance with a disconnect-and-reset workaround. The onboard generator is your hot-weather safety net, but it's loud and thirsty.

The Solis 59PX is best for the buyer who wants a capable, well-supported Class B that can actually sleep a small family on demand, and who camps mostly on pavement and maintained roads rather than chasing trails. Cross-shop it against the Winnebago Travato 59K — same ProMaster, but a no-pop-top couple's van with a stronger Pure3 lithium power system — and the Roadtrek Zion, a shorter ProMaster alternative. The Solis wins on sleeping capacity and ventilation; the Travato wins on off-grid power and the Coachmen Beyond wins on AWD. Pick the Solis if the pop-top's family flexibility is what you need.

What owners like

+The pop-top roof is the headline feature — it adds a second sleeping loft so the 59PX genuinely sleeps four (Murphy+ bed below, pop-top loft above), rare for a 21-foot Class B
+RAM ProMaster chassis is wide and front-wheel-drive, giving a roomy interior, a low step-in height, and gas-engine servicing at any dealer instead of diesel Sprinter maintenance
+Pop-top side and rear screens create excellent cross-ventilation — owners report rarely needing the AC until well into the 90s, which saves battery and runs quieter
+Onboard generator plus roof-mounted air conditioner on the PX give renters and owners a security blanket for hot, hookup-free nights when you do need cooling
+Winnebago's build reputation and dealer/service network are strong for a mainstream Class B, well ahead of bargain-brand coaches
+At around $138K it's priced well below AWD Sprinter and Transit adventure vans while still being a capable, family-friendly van

Common complaints

−Adding the rooftop AC on the PX means it loses the Maxxair roof fan that the non-PX 59P keeps — a real ventilation trade-off some owners regret
−The grey and black tanks are large but hang below the frame rather than tucked between the rails, and the generator sits on a tray behind the rear axle, hurting ground clearance and approach angles
−It's front-wheel-drive only — no AWD or 4x4 option — so deep snow, sand, and rough trails are off the menu compared to a Transit AWD or Sprinter 4x4
−ProMaster electrical gremlins carry over: owners report doors that won't lock and parking lights flashing randomly, a known RAM issue requiring a battery-disconnect reset ritual
−The pop-top loft comfortably fits two adults or an adult and child, but it's a climb and the lower-quality models' tops can feel less premium than a fixed high-roof
−Running the onboard generator for AC is loud and burns fuel, undercutting the quiet-boondocking appeal that draws people to vans
−Tank and battery capacities are good but not class-leading for serious extended off-grid — the Travato's Pure3 lithium system outguns it on pure power

Questions owners ask

Does the Solis 59PX really sleep four?

Yes, genuinely. The convertible Murphy+ bed downstairs handles two adults (about 59 by 77 inches) and the pop-top loft sleeps two more (about 52 by 79 inches). The loft comfortably fits two adults or an adult and a child. That four-person capacity in a 21-foot van is the 59PX's main advantage over couple-only vans like the Travato.

What chassis is it on, and does it offer AWD or 4x4?

It's built on the RAM ProMaster, which is front-wheel-drive only — there's no AWD or 4x4 option. The ProMaster gives you a wide, roomy interior, a low step-in height, and easy gas-engine servicing, but it's not the rig for deep snow, sand, or rough trails. If you need all-wheel grip, look at a Transit AWD or Sprinter 4x4 van instead.

How does the 59PX differ from the non-PX 59P?

The PX adds an onboard generator and a roof-mounted air conditioner, but fitting that rooftop AC means it loses the Maxxair roof ventilation fan that the 59P keeps. So the PX gives you guaranteed cooling for hot, hookup-free nights at the cost of some passive ventilation — a trade-off worth thinking about based on where you camp.

What are the known electrical quirks?

The most common is inherited from the RAM ProMaster: doors that won't lock and parking lights flashing randomly. It's a known RAM issue, and the owner workaround is to disconnect the engine battery, honk the horn to drain residual power, and let it sit about 30 minutes to reset. Annoying, but well documented and fixable.

How does it compare to the Winnebago Travato for off-grid use?

The Travato is the stronger pure-off-grid rig — its Pure3 lithium energy system delivers more usable power (up to roughly 9,600-12,800 watt-hours) than the Solis's setup. The Solis counters with the pop-top's excellent natural ventilation, which means you often don't need to run AC at all, plus the family sleeping capacity the Travato lacks. For power-hungry boondocking the Travato leads; for ventilation and sleeping four, the Solis wins.