01 What makes it unique
KZ lists the 2027 Sportster X 3914X at 14,620 lb unloaded (UVW), with a GVWR of 20,000 lb, a cargo carrying capacity of 5,380 lb and a dry hitch weight of 3,040 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 44' 5" long and 13' 5" high with the air conditioner, with 100 gal fresh, 50 gal grey and 88 gal black tanks. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 830 lb of the cargo capacity before anything else is loaded.
Among the 7 Sportster X floorplans KZ lists for 2027 with a published weight, it is number 7 by unloaded weight, in a range from 7,080 lb (20X) to 14,620 lb (3914X). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from KZ’s own floorplan page for the Sportster X 3914X, whose floorplan drawing KZ labels 2027. KZ notes that its UVW reflects a rolling average for the model and that your trailer will vary with optional equipment.
How the 3914X differs from the other six Sportster X floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 14,620 lb: heaviest of seven; next is the 3411X (13,560 lb).
- GVWR, 20,000 lb: highest of seven; next are the 3018X and 3411X (16,000 lb).
- Cargo capacity, 5,380 lb: largest of seven; next is the 3018X (4,440 lb).
- Dry tongue weight, 3,040 lb: heaviest of seven; next is the 3411X (2,520 lb).
- Dry tongue weight as a share of dry weight, 20.8%: largest of seven; next is the 3018X (20.2%).
- Length, 44 ft 5 in: longest of seven; next is the 3411X (39 ft 11 in).
- Sleeping capacity, 9: largest of seven; next is the 3411X (7).
- Cargo capacity as a share of GVWR, 26.9%: second-smallest of five, between the 3411X (15.2%) and the 3018X (27.8%).
- Black tank, 88 gal: largest of seven, level with the 3411X; next is the 3018X (50 gal).
- Exterior height, 13 ft 5 in: tallest of seven, level with the 3018X and 3411X; next are the 20X, 22X and two others (12 ft 6 in).
- Interior height, 8 ft 6 in: tallest of seven, level with the 3018X and 3411X; next are the 20X, 22X and two others (7 ft 7 in).
- Fresh tank, 100 gal: largest of seven, level with the 3018X and 3411X; next are the 20X, 22X and two others (94 gal).
- Grey tank, 50 gal: shared with the 3018X and 3411X; of seven, two smaller and two larger, nearest the 20X and 26X (38 gal) and the 22X and 33X (76 gal).
Next to the 3411X, the nearest lighter floorplan by dry weight, the 3914X is 1,060 lb heavier by dry weight, has a GVWR 4,000 lb higher, has 2,940 lb more cargo capacity, has a dry tongue weight 520 lb heavier, is 4 ft 6 in longer and sleeps two more; the two publish the same exterior height, interior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 44' 5"
- Exterior height
- 13' 5" (with A/C)
- Exterior width
- 100"
- Interior height
- 102"
Weights
- Dry / unit base weight (UVW)
- 14,620 lb
- GVWR (max loaded)
- 20,000 lb
- Net cargo / payload (CCC)
- 5,380 lb
- Hitch / dry tongue weight
- 3,040 lb
Capacities
- Fresh water
- 100 gal
- Grey water
- 50 gal
- Black water
- 88 gal
- Propane
- 60 lb
Running gear
- Hitch type
- Bumper pull
- Tire size
- 16"
Sleeping & layout
- Sleeps
- 9
- Refrigerator
- 16 cu ft
- Awning
- 20'/14'
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 (20,000 lb) and the upper loaded tongue estimate (3,040 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, 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 The Sportster X floorplan family
KZ lists 9 Sportster X floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 20X | 26' 9" | 4 | Profiled |
| 22X | 28' 5" | 6 | Profiled |
| 26X | 32' 1" | 6 | Profiled |
| 33X | 38' 9" | 6 | Profiled |
| 3018X | 35' 7" | 6 | Profiled |
| 3411X | 39' 11" | 7 | Profiled |
| 3915X | 44' 5" | 7 | Catalogued · dealer stock only |
| 3914X | 44' 5" | 9 | Profiled |
| 3813X | 44' 5" | 7 | Catalogued · KZ prints no weights on its page |
KZ lists 9 Sportster X floorplans. Every 2027 plan with a published weight has a page here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What KZ does not publish for the 3914X
KZ’s page prints no axle count and no price against this floorplan, so none is given. Nothing is filled from a sibling floorplan, 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
13,560 lb UVW and 16,000 lb GVWR, against this plan’s 14,620 lb and 20,000 lb.
06 Loading it for a trip
A full 100-gallon fresh tank is about 830 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 15% of the 3914X’s 5,380 lb cargo capacity, leaving 4,550 lb (506 lb per rated berth). Across 7 Sportster X floorplans the water share runs 15% to 34%, and this plan’s is the lowest. Nearest on that share: Sportster X 26X at 18%. 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 X 3411X, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 44 ft 5 in vs 39 ft 11 in; sleeps 9 vs 7; dry weight 14,620 lb vs 13,560 lb; GVWR 20,000 lb vs 16,000 lb; cargo capacity 5,380 lb vs 2,440 lb; hitch weight 3,040 lb vs 2,520 lb. They match on fresh tank, grey tank and black tank.
| Sportster X plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 20,000 | 7 of 7 | 10,000–20,000 |
| Dry weight (lb) | 14,620 | 7 of 7 | 7,080–14,620 |
| Cargo capacity (lb) | 5,380 | 7 of 7 | 2,440–5,380 |
| Hitch weight (lb) | 3,040 | 7 of 7 | 1,100–3,040 |
| Length | 44 ft 5 in | 7 of 7 | 26 ft 9 in–44 ft 5 in |
| Fresh tank (gal) | 100 | 5–7 of 7 | 94–100 |
| Grey tank (gal) | 50 | 3–5 of 7 | 38–76 |
| Black tank (gal) | 88 | 6–7 of 7 | 38–88 |
| Sleeps | 9 | 7 of 7 | 4–9 |
Either side of it by GVWR: Sportster X 3411X is 4,000 lb lighter (16,000 lb GVWR).
| Nearest Sportster X siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Sportster X 3914X | 44 ft 5 in | 9 | 14,620 | 20,000 | 5,380 | 3,040 | 100 |
| Sportster X 3411X | 39 ft 11 in | 7 | 13,560 | 16,000 | 2,440 | 2,520 | 100 |
| Sportster X 3018X | 35 ft 7 in | 6 | 11,560 | 16,000 | 4,440 | 2,330 | 100 |
| Sportster X 33X | 38 ft 9 in | 6 | 10,300 | 13,260 | 3,140 | 1,710 | 94 |
| Sportster X 26X | 32 ft 1 in | 6 | 8,530 | 12,750 | 4,220 | 1,140 | 94 |
| Sportster X 22X | 28 ft 5 in | 6 | 7,940 | 12,000 | 3,950 | 1,210 | 94 |
All 7 Sportster X floorplans: Sportster X line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 3914X | 20,000 | 14,620 | 9 | 44 ft 5 in |
| Vengeance Rogue 4007G2 | 16,960 | 13,394 | — | 44 ft 5 in |
| Cedar Creek Cottage 40CBK | 15,565 | 13,478 | — | 41 ft 6 in |
| Puma Vista 421LFT | 15,299 | 13,499 | — | 42 ft 10 in |
| Stealth 3300SLT | 14,999 | 10,986 | — | 37 ft 8 in |
| Aurora Destination Series 43CONDO | 14,745 | 13,245 | — | 43 ft 0 in |
| Jay Flight 40DLFT | 14,500 | 12,430 | 7 | 41 ft 6 in |
Against the 3914X: the Vengeance Rogue 4007G2 is 3,040 lb lighter; the Cedar Creek Cottage 40CBK is 4,435 lb lighter and 3 ft shorter; the Puma Vista 421LFT is 4,701 lb lighter and 2 ft shorter.
08 Common questions about the 3914X
How much does the 3914X weigh?
14,620 lb dry; 20,000 lb GVWR, the most it may weigh loaded.
How much can the 3914X carry?
5,380 lb, 27% of its GVWR (median across 1,010 travel trailers here: 23%). A full fresh tank uses 830 lb of it.
What is the tongue weight of the 3914X?
3,040 lb dry, 21% of the dry weight (median across 1,413 travel trailers here: 12%).
What size tow vehicle does the 3914X need?
A tow rating of at least 20,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the 3914X sleep?
It is rated to sleep 9. No other Sportster X floorplan here is rated for more.
What are the tank capacities on the 3914X?
Fresh 100, grey 50, black 88 gallons. Off hookups, fresh water runs out first.
How long is the 3914X?
44' 5" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
14 of the 18 fields this catalogue tracks are published for the 3914X. Not published: slide count, axle count, 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
No recall campaign or owner complaint in our NHTSA data names the Sportster X line. Read that as no result found, not as a clean record.
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 X line page.