01 What makes the 2024 340RLK different
The Jay Flight 340RLK is one of Jayco's Jay Flight travel trailers, the mass-market nameplate and the volume seller in Jayco's towable range. This page covers one model year of it — the 2024 340RLK, 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. Jayco publishes it at 8' 0" wide closed and 13' 11" with the slide-outs run out for the 2024 model year, which is the measurement that matters for a site pitch as well as for the road.
For the 2024 model year Jayco published a 10,350-pound GVWR on a 8,890-pound dry weight, 1,460 pounds of published cargo capacity, a 1,235-pound dry tongue weight. That dry tongue is 14% of the dry weight, inside the 10–15% band conventionally quoted for a bumper-pull trailer. Tongue weight is not fixed — it moves with how the trailer is loaded, and weight added ahead of the axles raises it. A tongue load in that range wants a weight-distribution hitch, and the tow vehicle's tongue-weight limit is a separate number from its trailer-weight limit — check the loaded tongue against the hitch receiver's rating and the vehicle's payload, not against the tow rating alone. The 2024 trailer left the factory on ST225/75R15'E' tyres; the load range in that code is part of the axle rating and a replacement set has to match it.
Against the 2023 build of the same floorplan, 7 published fields moved. The full comparison is in section 02, and it is drawn from two separate verified factory records rather than from one record and an assumption about the other.
A 2024 trailer is close to current as of 2026, but section 05 still applies: check it against its build date rather than its model year. Jayco commonly builds a model year well before the calendar year turns, and the tyre date codes have to be read against the build month, not the badge.
02 Full 2024 specifications
Dimensions
- Exterior length
- 37' 10"
- Exterior width
- 8' 0"
- Width, slides out
- 13' 11"
- Exterior height
- 10' 5"
- Exterior height (w/ A/C)
- 11' 3"
- Interior height (main)
- 6' 9"
Weights
- Dry / unit base weight (UVW)
- 8,890 lbs
- GVWR (max loaded)
- 10,350 lbs
- Net cargo / payload (CCC)
- 1,460 lbs
- Dry tongue weight
- 1,235 lbs
Running gear
- Tire size
- ST225/75R15'E'
- Hitch type
- Bumper pull (weight-distribution recommended)
- Model year of record
- 2024
Capacities
- Fresh water
- 52.0 gal
- Grey water
- 39.0 gal
- Black water
- 32.5 gal
- LP / propane
- 40 lbs
- LP / propane, optional
- 60 lbs
Galley & systems
- Water heater
- Tankless
- Furnace output
- 35000 BTU
- Furnace, auto-ignition
- Not published
- Outside storage compartments
- 3
Sleeping
- Sleeps
- up to 4
Verified specs, drawn to scale
Original graphics built from this floorplan’s own verified figures.
Loaded weight budget
Size, drawn to scale
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 tongue percentages are industry convention for travel trailers (10–15% 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 2024 model year
Jayco changed 7 of the published fields between the 2023 and 2024 340RLK. Every figure in both columns is that model year's own factory record — nothing here is carried across from the other year.
| Field | 2023 | 2024 | Change |
|---|---|---|---|
| Dry weight (UVW) | 8,770 | 8,890 | +120 lb |
| Cargo capacity (CCC) | 1,580 | 1,460 | -120 lb |
| Dry tongue weight | 1,175 | 1,235 | +60 lb |
| Exterior width, slides out | 11' 0" | 13' 11" | — |
| Black tank | 39.0 | 32.5 | -6 gal |
| Fresh tank | 40.0 | 52.0 | +12 gal |
| Grey tank | 71.5 | 39.0 | -32 gal |
| Model year | Dry (UVW) | GVWR | Dry tongue | Sleeps | Tire size |
|---|---|---|---|---|---|
| 2023 | 8,770 | 10,350 | 1,175 | 4 | ST225/75R15'E' |
| 2024 | 8,890 | 10,350 | 1,235 | 4 | ST225/75R15'E' |
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 Jay Flight 340RLK parent page.
Dry tongue weight changed for 2024
Dry tongue weight was 1,175 for 2023 and is 1,235 for 2024 (+60 lb). Both figures are the manufacturer's own for their year.
Where these numbers come from
Every figure on this page is read from Jayco's own 2024 model page for the 340RLK — 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 2024
For this model year the factory record omits: Furnace, Auto-ignition (BTU output). 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 2024 340RLK at 2 model years old
Tyres are the first thing to age out
RV tyres are usually replaced on age rather than tread, at roughly five to seven years from the DOT date code on the sidewall. On a 2-year-old trailer the originals (ST225/75R15'E') may still be fitted — read the four-digit date code, not the tread.
Roof and seam sealant is on a service interval
Travel trailers rely on sealant at every roof penetration, along the front cap and around every window and marker light. Inspection is typically annual and re-sealing every few years; ask for the service records rather than assuming.
Weigh it before you tow it
Every weight on this page is a DRY factory figure for the 2024 model year. A used trailer carries its previous owner's additions, and a travel trailer puts its tongue load on the tow vehicle's hitch and through its rear axle. Weigh the loaded rig at a public scale and check it against the tow vehicle's payload, rear-axle and hitch ratings.
05 How it compares — and to its other years
The same floorplan one model year earlier, 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 52-gallon tank is about 30% of the 1,460-pound cargo capacity — enough that whether you tow with water aboard is a real decision on the 340RLK rather than a detail.
| Weight budget | Figure | What it means |
|---|---|---|
| Cargo capacity as published (CCC) | 1,460 lb | Everything you add: gear, water, propane, batteries, food, people’s belongings. |
| Fresh tank filled (52 gal × 8.34 lb) | −434 lb | Water is the heaviest thing most owners add, and it is added first. |
| Cargo budget left with a full fresh tank | 1,026 lb | 30% of this plan’s capacity is spent before a single bag is loaded. |
| Per sleeping position, water aboard | 257 lb | A rough share of what is left across the 4 berths this plan sleeps. |
The published dry tongue weight of 1,235 pounds is 14% of the 8,890-pound dry weight, which sits inside the 10–15% band usually quoted for stable towing. It is still a dry figure: loading the front pass-through and the fresh tank both push it up.
Nothing above changes the ceiling. Loaded to its 10,350-pound GVWR the 340RLK is towing 1,460 pounds more than its 8,890-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.
Tank balance is generous here: 52 gallons of fresh against 39 grey and 32 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 travel trailers | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 340RLK | 10,350 | 8,890 | 4 | 37 ft 10 in |
| Aurora 32RLTS | 10,342 | 8,842 | 3 | 35 ft 10 in |
| Access 32BR | 10,400 | 8,008 | 8 | 37 ft 11 in |
| Voyage 2427RB | 10,400 | 6,629 | 4 | 27 ft 11 in |
| Coachmen Catalina 343BHTS | 10,436 | 8,936 | 10 | 38 ft 1 in |
| Puma Tracks 3380RLBT | 10,260 | 8,298 | — | 37 ft 8 in |
| Delta 321BH | 10,450 | 8,330 | 7 | 36 ft 11 in |
Against the 340RLK: the Aurora 32RLTS is 8 lb lighter and 2 ft shorter and sleeps 1 fewer; the Access 32BR is 50 lb heavier and sleeps 4 more; the Voyage 2427RB is 50 lb heavier and 10 ft shorter. 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 travel trailers 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 Jay Flight floorplans profiled here run 2,450 to 12,430 pounds dry and 16 to 42 feet of exterior length across 117 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 Jay Flight line hub.
08 Common questions about the 340RLK
How much does the 340RLK weigh?
It leaves the factory at 8,890 pounds dry, and its manufacturer-set loaded ceiling (GVWR) is 10,350 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 340RLK carry?
Cargo carrying capacity is 1,460 pounds. That is the whole budget: water, propane, batteries, gear and everything you bring. Filling the 52-gallon fresh tank uses about 434 pounds of that.
What is the tongue weight of the 340RLK?
The published dry tongue weight is 1,235 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 340RLK need?
Your vehicle needs a tow rating of at least 10,350 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 340RLK sleep?
It is rated to sleep 4. 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 340RLK?
Fresh 52 gallons, grey 39 gallons, black 32 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 340RLK?
Exterior length is 37' 10". 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 13 of them for the 340RLK. 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: slide count, axle count, 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 (95%) 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 Jay Flight line, and NHTSA holds 25 recall campaigns and 80 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 80 complaints filed on this line the most-reported components are equipment (42%), unknown or other (12%) and structure (11%). That is where owners of this family have had trouble, so it is where an inspection is worth the time.
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 Jay Flight line page.