01 What makes it unique
KZ lists the 2024 Sportster 353TH13 at 11,070 lb dry, a GVWR of 13,995 lb, a net carrying capacity of 2,925 lb and a pin weight of 2,640 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 40' 6" long and 12' 7" high. KZ prints its tanks as 75 gal fresh, 50 gal grey, 82 gal black.
Among the 5 Sportster floorplans KZ’s 2024 Sportster brochure lists with a published dry weight, it is number 5 from the lightest, in a range from 6,840 lb (Sportster 270THR) to 11,070 lb (Sportster 353TH13). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 6 Nov 2026 from KZ’s 2024 Sportster brochure, the maker’s own dated document for model year 2024.
How the 353TH13 differs from the other four Sportster floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 11,070 lb: heaviest of five; next is the 331TH13 (9,800 lb).
- GVWR, 13,995 lb: highest of five; next is the 331TH13 (12,995 lb).
- Cargo capacity as a share of GVWR, 20.9%: smallest of five; next is the 331TH13 (24.6%).
- Pin weight, 2,640 lb: heaviest of three; next is the 331TH13 (2,300 lb).
- Pin weight as a share of dry weight, 23.8%: largest of three; next is the 331TH13 (23.5%).
- Length, 40 ft 6 in: longest of five; next is the 331TH13 (38 ft 6 in).
- Black tank, 82 gal: largest of five; next is the 280TH (50 gal).
- Cargo capacity, 2,925 lb: second-smallest of five, between the 301THR (2,780 lb) and the 270THR (3,160 lb).
- Sleeping capacity, 6: second-smallest of five, between the 270THR (4) and the 280TH (7).
- Grey tank, 50 gal: shared with the 280TH; of five, two smaller and one larger, nearest the 270THR and 331TH13 (32 gal) and the 301THR (64 gal).
Next to the 331TH13, the nearest lighter floorplan by dry weight, the 353TH13 is 1,270 lb heavier by dry weight, has a GVWR 1,000 lb higher, has 270 lb less cargo capacity, has a pin weight 340 lb heavier, is 2 ft longer, has a grey tank 18 gal larger, has a black tank 50 gal larger and sleeps two fewer; the two publish the same exterior height, interior height and fresh tank.
02 Full specifications
Dimensions
- Exterior length
- 40' 6"
- Exterior height
- 12' 7"
- Exterior width
- 102"
- Interior height
- 95"
Weights
- Dry / unit base weight (UVW)
- 11,070 lb
- GVWR (max loaded)
- 13,995 lb
- Net cargo / payload (CCC)
- 2,925 lb
- Hitch / pin weight
- 2,640 lb
Capacities
- Fresh water
- 75 gal
- Grey water
- 50 gal
- Black water
- 82 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16"
Sleeping & layout
- Sleeps
- 6
- Dry Axle Weight*
- 8,430
- Refrigerator (cu. feet)
- 8
- Water Heater Cap. (on-demand tankless)
- *** (footnote: "***Infinite supply.")
- LP Gas Cap. (lbs.)
- 60
- Furnace BTUs (1,000s)
- 30
- Weight basis (as printed)
- UVW / Dry Hitch / Dry Axle carry the footnote "*This weight reflects the rolling average unit weight for each model. Your trailer weight will vary according to optional equipment."
- Exterior length note (as printed)
- "**For travel trailers, exterior length is measured from rear of bumper to leading edge of coupler. For fifth wheels, exterior length is measured from rear of bumper to center of coupler."
- Model year source
- Printed in the brochure: "2024 SPORTSTER TRAVEL TRAILER TOY HAULERS" / "2024 SPORTSTER FIFTH WHEEL TOY HAULERS"; KZ files it at kz-rv.com/brochures/2024/.
- Line relationship note
- KZ's archive shows Sportster books 2017-2024 and "Sportster X" from 2025 (sportster-x hub on site). Codes do not overlap the 2027 Sportster X roster (20X, 22X, 26X, 3018X, 33X, 3411X, 3914X). Whether this is a predecessor badge of Sportster X is a naming call, not decided here.
- Awning
- 14'/12' opt.
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (13,995 lb) and the upper loaded pin estimate (3,499 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
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 figure, because loaded is never lighter than that.
03 The Sportster floorplan family
KZ’s 2024 Sportster brochure lists 5 Sportster floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Sportster 270THR | 30' 8" | 4 | Profiled |
| Sportster 301THR | 35' 10" | 8 | Profiled |
| Sportster 280TH | 32' 6" | 7 | Profiled |
| Sportster 331TH13 | 38' 6" | 8 | Profiled |
| Sportster 353TH13 | 40' 6" | 6 | Profiled |
KZ’s 2024 Sportster brochure lists 5 Sportster floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Sportster 353TH13
Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
9,800 lb dry and 12,995 lb GVWR, against this model’s 11,070 lb and 13,995 lb.
06 Loading it for a trip
A full 75-gallon fresh tank is about 622 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 21% of the Sportster 353TH13’s 2,925 lb cargo capacity, leaving 2,302 lb (384 lb per rated berth). Across 5 Sportster floorplans the water share runs 19% to 22%, and 1 gives up more than this one. Nearest on that share: Sportster 270THR at 20% and Sportster 301THR at 22%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).
07 Where this floorplan sits
Closest sibling: the Sportster 280TH, nearest on the published figures. It differs on 7 of the 9 fields both publish (this plan first): length 40 ft 6 in vs 32 ft 6 in; sleeps 6 vs 7; dry weight 11,070 lb vs 8,310 lb; GVWR 13,995 lb vs 11,500 lb; cargo capacity 2,925 lb vs 3,190 lb; hitch weight 2,640 lb vs 1,680 lb; black tank 82 gal vs 50 gal. They match on fresh tank and grey tank.
| Sportster plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 13,995 | 5 of 5 | 10,000–13,995 |
| Dry weight (lb) | 11,070 | 5 of 5 | 6,840–11,070 |
| Cargo capacity (lb) | 2,925 | 2 of 5 | 2,780–3,195 |
| Hitch weight (lb) | 2,640 | 5 of 5 | 980–2,640 |
| Length | 40 ft 6 in | 5 of 5 | 30 ft 8 in–40 ft 6 in |
| Grey tank (gal) | 50 | 3–4 of 5 | 32–64 |
| Black tank (gal) | 82 | 5 of 5 | 32–82 |
| Sleeps | 6 | 2 of 5 | 4–8 |
Either side of it by GVWR: Sportster 331TH13 is 1,000 lb lighter (12,995 lb GVWR).
| Nearest Sportster siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Sportster 353TH13 | 40 ft 6 in | 6 | 11,070 | 13,995 | 2,925 | 2,640 | 75 |
| Sportster 280TH | 32 ft 6 in | 7 | 8,310 | 11,500 | 3,190 | 1,680 | 75 |
| Sportster 331TH13 | 38 ft 6 in | 8 | 9,800 | 12,995 | 3,195 | 2,300 | 75 |
| Sportster 301THR | 35 ft 10 in | 8 | 8,220 | 11,000 | 2,780 | 1,380 | 75 |
| Sportster 270THR | 30 ft 8 in | 4 | 6,840 | 10,000 | 3,160 | 980 | 75 |
All 5 Sportster floorplans: Sportster line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Sportster 353TH13 | 13,995 | 11,070 | 6 | 40 ft 6 in |
| Campsite Reserve 39IB | 14,000 | 11,039 | — | 44 ft 6 in |
| Cedar Creek Cottage 40CCK | 14,000 | 12,474 | — | 40 ft 6 in |
| Jay Flight 40LSDL | 14,000 | 11,940 | 10 | 41 ft 11 in |
| Sandpiper Destination / Sierra Destination 411DBDL | 14,000 | 12,714 | — | 42 ft 8 in |
| Stealth 3030SLT | 14,000 | 9,838 | — | 37 ft 3 in |
| Cherokee Timberwolf Black Label 39JMBL | 14,000 | 12,984 | — | 43 ft 4 in |
Against the Sportster 353TH13: the Campsite Reserve 39IB is 5 lb heavier and 4 ft longer; the Cedar Creek Cottage 40CCK is 5 lb heavier; the Jay Flight 40LSDL is 5 lb heavier and 1 ft longer and sleeps 4 more.
08 Common questions about the Sportster 353TH13
How much does the Sportster 353TH13 weigh?
11,070 lb dry; 13,995 lb GVWR, the most it may weigh loaded.
How much can the Sportster 353TH13 carry?
2,925 lb, 21% of its GVWR (median across 1,416 travel trailers here: 23%). A full fresh tank uses 622 lb of it.
What is the pin weight of the Sportster 353TH13?
2,640 lb as published, 24% of the dry weight (median across 2,002 travel trailers here: 12%).
What size tow vehicle does the Sportster 353TH13 need?
A tow rating of at least 13,995 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the Sportster 353TH13 sleep?
It is rated to sleep 6. 3 of the 5 Sportster floorplans that publish a count sleep more.
What are the tank capacities on the Sportster 353TH13?
Fresh 75, grey 50, black 82 gallons. Off hookups, fresh water runs out first.
How long is the Sportster 353TH13?
40' 6" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
13 of the 18 fields this catalogue tracks are published for the Sportster 353TH13. Not published: slide count, axle count, refrigerator, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: kz-rv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 9 recall campaigns and 6 owner complaints (model years 2005 on) against the Sportster line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 6 complaints have been filed on this line — not enough to say what fails most often. They cover tires, latches/locks/linkages, structure and suspension.
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 Sportster line page.