01 What makes the 2021 355MBQS different
The Eagle 355MBQS sits in the full-size tier of Jayco's Eagle fifth wheels, above the half-ton Eagle HT and below the luxury North Point and Pinnacle coaches. This page covers one model year of it — the 2021 355MBQS, exactly as Jayco published it — because the numbers that decide whether your truck can pull this trailer are not the same from one year to the next.
For the 2021 model year Jayco published a 14,995-pound GVWR on a 13,250-pound dry weight, 1,745 pounds of published cargo capacity, a 2,280-pound dry pin weight. A pin weight in that range lands well outside half-ton territory: plan on a three-quarter-ton or larger truck, and check the loaded pin against the truck's payload and rear-axle ratings rather than against the tow rating alone.
This is the earliest 355MBQS model year with a verified factory record in this catalogue. Later years are linked at the foot of the page, each with its own published figures.
A 2021 coach is 5 model years old as of 2026, which puts it squarely in used-buyer territory. Section 05 sets out what to inspect on a laminated-wall fifth wheel of this age — tyre date codes, roof and seam sealant, slide seals, and the soft-floor and delamination checks that separate a tidy coach from an expensive one.
02 Full 2021 specifications
Dimensions
- Exterior length
- 42' 0"
- Exterior width
- 8' 1"
- Width, slides out
- Not published
- Exterior height
- Not published
- Exterior height (w/ A/C)
- 12' 11"
- Interior height (main)
- 8' 7"
Weights
- Dry / unit base weight (UVW)
- 13,250 lbs
- GVWR (max loaded)
- 14,995 lbs
- Net cargo / payload (CCC)
- 1,745 lbs
- Dry pin weight
- 2,280 lbs
Running gear
- Tire size
- Not published
- Hitch type
- Fifth-wheel (in-bed)
- Model year of record
- 2021
Capacities
- Fresh water
- 81 gal
- Grey water
- 87 gal
- Black water
- 50 gal
- LP / propane
- Not published
- LP / propane, optional
- Not published
Galley & systems
- Water heater
- Not published
- Furnace output
- Not published
- Furnace, auto-ignition
- Not published
- Outside storage compartments
- Not published
Sleeping
- Sleeps
- 8-11
Verified specs, drawn to scale
Original graphics built from this floorplan’s own verified figures.
Loaded weight budget
Holding tanks
These graphics are generated from the same verified record that builds the table above, and are published under this site’s own licence — nothing here is traced from, or derived from, a manufacturer drawing or photo. Where a figure is not published for this plan, the graphic that would need it is omitted rather than estimated. The full record is in the published dataset.
What it takes to tow this
Built from this floorplan’s verified weights. We publish the trailer side only.
We do not publish tow ratings for specific trucks. A single model can vary by thousands of pounds depending on engine, axle ratio, cab, drivetrain and package — the only authoritative figure is the one on your own door jamb. Loaded pin percentages are industry convention for fifth wheels (15–25% of loaded weight), not a measurement of this unit. Hitch classes are not used here as a rating: SAE J684 covers trailers to 10,000 lb GVWR and does not define Class V, and capacity boundaries differ between manufacturers — read the rating stamped on your hitch. On this plan the convention band’s low end fell below the published dry figure, so the range starts at the published dry weight instead — loaded is never lighter than dry.
03 What changed for the 2021 model year
2021 is the earliest model year of the 355MBQS that this catalogue has a verified factory record for, so there is no earlier year here to compare it against. The years we do publish run 2021 to 2027; each one is linked below.
| Model year | Dry (UVW) | GVWR | Dry pin | Sleeps | Tire size |
|---|---|---|---|---|---|
| 2021 | 13,250 | 14,995 | 2,280 | 11 | Not published |
| 2022 | 13,250 | 14,995 | 2,080 | 9 | Not published |
| 2024 | 12,830 | 15,200 | 2,420 | 10 | ST235/85R16'E' |
| 2025 | 12,830 | 15,200 | 2,420 | 10 | ST235/85R16'E' |
| 2026 | 13,115 | 15,400 | 2,580 | 8 | ST235/80R16'H' |
| 2027 | 12,775 | 15,400 | 2,455 | 8 | ST235/80R16'H' |
Every row is that model year's own factory record. The all-years overview for this floorplan, with the family history and the full line, is on the Jayco Eagle 355MBQS parent page.
No published field moved
Jayco's published record for the 2021 355MBQS matches the adjacent year field for field.
Where these numbers come from
Every figure on this page is read from Jayco's own 2021 factory brochure for the 355MBQS — one source, one model year, no blending. The all-years parent page sets this year beside every other model year we hold, and where the record this catalogue originally profiled disagrees with Jayco's own model page, both figures are published there and neither is adjusted.
Fields Jayco does not publish for 2021
For this model year the factory record omits: Exterior Width (with slides out), Exterior Height, Tire Size, Propane Unit (lbs), Propane Unit (lbs) (Optional), Water Heater, Furnace BTU, Furnace, Auto-ignition (BTU output), # of outside storage compartments. Those rows read “Not published” on this page. They are deliberately not filled in from an adjacent model year — a neighbouring year's figure is an inference about this one, not a measurement of it.
04 Buying a 2021 355MBQS at 5 model years old
Tyres are almost certainly past their service age
At 5 years old, the original the factory tire size will be well beyond the five-to-seven-year age window RV tyres are normally replaced on, regardless of tread depth. Budget for a full set plus the spare unless there is a dated receipt.
Water is what kills these, and it is the cheapest thing to check
Press the walls and floor around the entry, the slide openings, the rear wall and under the front cap. Soft spots, a wavy or rippled sidewall, or a stained ceiling are delamination and water ingress, and they are structural rather than cosmetic.
Appliance and component life
Absorption fridges, water heaters and A/C units commonly need attention somewhere in the second decade. Run every appliance on both gas and mains before agreeing a price.
Weigh it before you tow it
Every weight on this page is a DRY factory figure for the 2021 model year. A used coach carries its previous owner's additions, and a fifth wheel puts roughly 15-25% of the load through the truck's rear axle. Weigh the loaded rig at a public scale and check it against the truck's payload, rear-axle and hitch ratings.
05 How it compares — and to its other years
The same floorplan one model year later, with its own published weights.
The parent page for this floorplan: every model year we hold, side by side.
06 Loading it for a trip
Fresh water is the single biggest line in this floorplan’s load plan. A full 81-gallon tank is about 39% of the 1,745-pound cargo capacity — enough that whether you tow with water aboard is a real decision on the 355MBQS rather than a detail.
| Weight budget | Figure | What it means |
|---|---|---|
| Cargo capacity as published (CCC) | 1,745 lb | Everything you add: gear, water, propane, batteries, food, people’s belongings. |
| Fresh tank filled (81 gal × 8.34 lb) | −676 lb | Water is the heaviest thing most owners add, and it is added first. |
| Cargo budget left with a full fresh tank | 1,069 lb | 39% of this plan’s capacity is spent before a single bag is loaded. |
| Per sleeping position, water aboard | 134 lb | A rough share of what is left across the 8 berths this plan sleeps. |
The published dry pin weight of 2,280 pounds is 17% of this floorplan’s 13,250-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.
Nothing above changes the ceiling. Loaded to its 14,995-pound GVWR the 355MBQS is towing 1,745 pounds more than its 13,250-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.
Tank balance is generous here: 81 gallons of fresh against 87 grey and 50 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.
07 Where this floorplan sits
| Comparable fifth wheels | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 355MBQS | 14,995 | 13,250 | 8 | 42 ft 0 in |
| Avenue 35RKS | 14,995 | 11,300 | 6 | 36 ft 10 in |
| Model Z 2810 | 14,995 | 11,894 | 6 | 34 ft 9 in |
| Reflection 360FLS | 14,995 | 12,388 | 6 | 39 ft 2 in |
| Influence 2903RL | 15,000 | 11,800 | 4 | 34 ft 5 in |
| Wildcat 402BEDS | 14,800 | 12,353 | 8 | 42 ft 3 in |
| Montana High Country 295RL | 15,203 | 11,595 | 6 | 34 ft 0 in |
Against the 355MBQS: the Avenue 35RKS is 5 ft shorter and sleeps 2 fewer; the Model Z 2810 is 7 ft shorter and sleeps 2 fewer; the Reflection 360FLS is 3 ft shorter and sleeps 2 fewer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.
Those are the nearest fifth wheels from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.
For scale, the Eagle floorplans profiled here run 6,560 to 12,830 pounds dry and 28 to 43 feet of exterior length across 37 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.
Every profiled floorplan in this line, with the full weight table, is on the Eagle line hub.
08 Common questions about the 355MBQS
How much does the 355MBQS weigh?
It leaves the factory at 13,250 pounds dry, and its manufacturer-set loaded ceiling (GVWR) is 14,995 pounds. Real towing weight lands between the two and depends entirely on what you load. Use the GVWR when matching a tow vehicle; the dry figure is only useful for comparing floorplans against each other.
How much can the 355MBQS carry?
Cargo carrying capacity is 1,745 pounds. That is the whole budget: water, propane, batteries, gear and everything you bring. Filling the 81-gallon fresh tank uses about 676 pounds of that.
What is the pin weight of the 355MBQS?
The published dry pin weight is 2,280 pounds. It is measured empty; loaded, it runs higher, and it comes out of your tow vehicle’s payload rather than its tow rating.
What size tow vehicle does the 355MBQS need?
Your vehicle needs a tow rating of at least 14,995 pounds — this floorplan’s GVWR — and enough payload left over for the hitch load, passengers and anything in the bed. This site does not publish tow ratings for specific vehicles, because one truck model varies by thousands of pounds across engine, axle ratio, cab and package. The figure that governs is the payload sticker on your own door jamb.
How many people does the 355MBQS sleep?
It is rated to sleep 8. Rated sleeping positions include convertible furniture, so count the beds against how you actually travel rather than against the number.
What are the tank capacities on the 355MBQS?
Fresh 81 gallons, grey 87 gallons, black 50 gallons. Tank sizes set how long the floorplan can sit away from hookups, and the smallest of the three is what ends the stay.
How long is the 355MBQS?
Exterior length is 42' 0". Measure against your site length and your storage before committing — the exterior figure is the one that has to fit, and it includes the tongue or pin box.
Every figure in these answers is read from this page’s verified specification table. Where the manufacturer publishes nothing, the question is not answered rather than estimated.
09 What this page publishes, and what it does not
This catalog tracks 18 specification fields per floorplan. Named sources publish 11 of them for the 355MBQS. The rest are not shown, because the alternative is reading a figure across from a sibling floorplan or from what the segment usually does — and a number nobody published is worth less than an admitted gap.
Not published for this floorplan: exterior height, slide count, axle count, tire specification, awning, refrigerator, air conditioning. If you find one of these in a manufacturer document for this plan, it belongs on this page.
The completeness figure at the foot of this page (57%) measures the same thing on the full field set: it is a measurement of how much this floorplan’s manufacturer publishes, not of how much research went into the page.
How every figure here was sourced and checked is set out on the methodology page.
11 NHTSA safety record
This floorplan belongs to the Eagle line, and NHTSA holds 44 recall campaigns and 114 owner complaints against that line. They are separate records and are not added together — a recall is a manufacturer-confirmed defect with a remedy; a complaint is one owner’s account, which NHTSA does not verify.
What to look at on a used one. Across the 114 complaints filed on this line the most-reported components are tires (23%), structure (18%) and equipment (13%). That is where owners of this family have had trouble, so it is where an inspection is worth the time.
Reports that name the 355MBQS
1 of those record name this floorplan specifically rather than the line as a whole.
| Type | Date | Reference | What it says |
|---|---|---|---|
| Recall | 24 Oct 2016 | 16V772000 | If the axle is overloaded, excess tire wear may result, possibly causing tire failure and an increased risk of a crash. |
Recall coverage is not complete — our harvest of NHTSA’s recall API ran 1,556 queries, of which 0 failed and 242 returned an explicit zero. A line can still be under-reported where NHTSA files a roster under a parent name, or where a match rests on the wording of the recall rather than its model field. Complaints come from the complete bulk file but are unverified and self-selected: a high count tracks how many units a line sold at least as much as how well it was built. Check a specific VIN at NHTSA before you buy. Full tables are on the Eagle line page.