01 What makes the 2018 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.
Across the 8 model years of the 355MBQS on this site (2018 to 2027), the 2018 record has the lightest dry weight, 12,335 lbs; the lowest GVWR, 14,995 lbs (level with 2020, 2021 and 2022); the largest cargo capacity, 2,660 lbs; dry pin weight 2,455 lbs, between 2,080 lbs (2022) and 2,580 lbs (2026), level with 2027; the shortest exterior length, 41' 11".
Against the 2020 355MBQS, the next model year on this site, 5 of the 8 fields both records publish differ: dry weight 12,335 lbs to 12905 lbs (+570 lb); cargo capacity 2,660 lbs to 2,090 lbs (-570 lb); dry pin weight 2,455 lbs to 2215 lbs (-240 lb); exterior length 41' 11" to 42'0" (+1 in); height with A/C 154" to 13'0" (+2 in). Written differently but the same figure: GVWR and exterior width.
Among the 5 Jayco Eagle fifth wheels with a 2018 page on this site, the 355MBQS is the heaviest of 5 by dry weight; the highest of 5 by GVWR; 2nd largest of 5 by cargo capacity; the longest of 5 by exterior length. By dry weight, the lightest is the 321RSTS at 10,310 lbs.
02 Full 2018 specifications
Dimensions
- Exterior length
- 41' 11"
- Exterior width
- 96"
- Width, slides out
- Not published
- Exterior height
- Not published
- Exterior height (w/ A/C)
- 154"
- Interior height (main)
- Not published
Weights
- Dry / unit base weight (UVW)
- 12,335 lbs
- GVWR (max loaded)
- 14,995 lbs
- Net cargo / payload (CCC)
- 2,660 lbs
- Dry pin weight
- 2,455 lbs
Running gear
- Tire size
- Not published
- Hitch type
- Fifth-wheel (in-bed)
- Model year of record
- 2018
Capacities
- Fresh water
- Not published
- Grey water
- Not published
- 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
- Not published
Towing it
Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published dry figure, because loaded is never lighter than dry.
03 What changed for the 2018 model year
2018 is the earliest model year of the 355MBQS on this site, so there is no earlier record to set it against. Section 01 compares it with 2020.
| Model year | Dry (UVW) | GVWR | Dry pin | Sleeps | Tire size |
|---|---|---|---|---|---|
| 2018 | 12,335 | 14,995 | 2,455 | Not published | Not published |
| 2020 | 12905 | 14995 | 2215 | Not published | Not published |
| 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' |
All years side by side: the Jayco Eagle 355MBQS parent page.
Where these numbers come from
Every figure on this page is read from the 2018 Jayco Eagle HT factory brochure (RVUSA brochure library) (how sources are handled).
Fields Jayco does not publish for 2018
For this model year the factory record has no width with slides out, exterior height, interior height, tire size, fresh tank, grey tank, propane, optional propane, water heater, furnace output, auto-ignition furnace, outside storage compartments and sleeping count. Those rows read “Not published” and are not filled in from another year.
04 Buying a 2018 355MBQS at 8 model years old
Its age, and the date on its label
A 2018 355MBQS is 8 model years old in 2026. Its build month is on the certification label (49 CFR 567.4(g)(2)), not in the model year.
Tires: size and date code
Jayco publishes no tire size for 2018, so read the size off the sidewalls. Read the four-digit date code at the end of each tire's identification number, spare included (49 CFR 574.5(b)(3)).
NHTSA record for model year 2018
For model year 2018, NHTSA's files hold 8 recall campaigns and 8 owner complaints under the Jayco Eagle name (see Jayco Eagle year by year). Campaigns by component: Equipment (21V685000, 21V425000, 18V364000, 18V075000, 18V073000, 18V072000, 17V350000); Trailer hitches (18V286000). Complaints on 2018 units name Equipment (3), Fuel system, other (1), Service brakes (1), Structure (1), Unknown OR other (1) and Wheels (1). They are filed against the line, not this floorplan alone.
05 How it compares — and to its other years
Differs from 2018 on 5 of 8 shared fields, dry weight, cargo capacity and dry pin weight among them.
Model years 2018, 2020, 2021, 2022, 2024, 2025, 2026 and 2027, side by side.
06 Loading it for a trip
Cargo capacity on the 355MBQS is 2,660 lb.
07 Where this floorplan sits
| 2018 fifth wheels from other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 355MBQS | 14,995 | 12,335 | — | 41 ft 11 in |
| Seismic 313T | 16,000 | 10,815 | — | — |
Against the 2018 355MBQS: the 2018 Seismic 313T is 1,005 lb heavier.
08 Common questions about the 355MBQS
How much does the 355MBQS weigh?
12,335 lb dry; 14,995 lb GVWR, the most it may weigh loaded.
How much can the 355MBQS carry?
2,660 lb, 18% of its GVWR (median across 307 fifth wheels here: 19%).
What is the pin weight of the 355MBQS?
2,455 lb dry, 20% of the dry weight (median across 386 fifth wheels here: 19%).
What size tow vehicle does the 355MBQS need?
A tow rating of at least 14,995 lb, plus payload for the loaded pin weight, passengers and cargo.
How long is the 355MBQS?
41' 11" overall, tongue or pin box included.
How does the 2018 355MBQS differ from other model years?
Set against the published 2020 355MBQS record, 4 figures differ: dry weight 12,335 lb in 2018 against 12,905 lb in 2020; cargo capacity 2,660 lb in 2018 against 2,090 lb in 2020; dry hitch weight 2,455 lb in 2018 against 2,215 lb in 2020; exterior length 41 ft 11 in in 2018 against 42 ft 0 in in 2020. 2 other figures both years publish are identical. This floorplan is profiled for 8 model years here (2018 to 2027).
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 355MBQS. Not published: exterior height, interior height, fresh tank, grey tank, sleeps, slide count, axle count, tire specification, awning, refrigerator, air conditioning.
Sourcing rules: methodology.
10 Manuals & documents
Sources: jayco.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 44 recall campaigns and 114 owner complaints against the Eagle line. They are counted separately: a recall is a confirmed defect with a remedy, a complaint one owner’s unverified account.
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%).
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 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 Eagle line page.