01 What makes it unique
KZ lists the 2009 Inferno SST FKL19 at 5,390 lb dry, a GVWR of 10,400 lb, a net carrying capacity of 5,010 lb and a hitch weight of 780 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
KZ prints no tank capacity for it.
Among the 4 Inferno SST floorplans KZ’s Inferno SST brochure (filed in KZ’s 2009 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 1 from the lightest, in a range from 5,390 lb (Inferno SST FKL19) to 7,860 lb (Inferno SST FSL29). 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 Inferno SST brochure (filed in KZ’s 2009 brochure folder; the brochure prints no year); model year 2009 comes from where the maker files it on its own site, not from the document’s text.
How the FKL19 differs from the other three Inferno SST floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 5,390 lb: lightest of four; next is the FBL24 (5,990 lb).
- Cargo capacity, 5,010 lb: largest of four; next is the FBL24 (4,410 lb).
- Cargo capacity as a share of GVWR, 48.2%: largest of four; next is the FBL24 (42.4%).
Next to the FBL24, the nearest heavier floorplan by dry weight, the FKL19 is 600 lb lighter by dry weight and has 600 lb more cargo capacity; the two publish the same GVWR.
02 Full specifications
Dimensions
- Exterior length
- Not published by KZ
- Exterior height
- Not published by KZ
- Exterior width
- Not published by KZ
- Interior height
- Not published by KZ
Weights
- Dry / unit base weight (UVW)
- 5,390 lb
- GVWR (max loaded)
- 10,400 lb
- Net cargo / payload (CCC)
- 5,010 lb
- Hitch weight
- 780 lb
Capacities
- Fresh water
- Not published by KZ
- Grey water
- Not published by KZ
- Black water
- Not published by KZ
Running gear
- Hitch type
- Not stated per floorplan by KZ
- Tire size
- Not published by KZ
Sleeping & layout
- Sleeps
- Not published by KZ
- Model year source
- KZ brochure archive: link "Inferno SST" under heading "2009", file /brochures/2009/; brochure text prints no model year
- Axle Weight
- 4,610
- Axles
- (2) 5,200
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
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
03 The Inferno SST floorplan family
KZ’s Inferno SST brochure (filed in KZ’s 2009 brochure folder; the brochure prints no year) lists 4 Inferno SST floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Inferno SST FKL19 | — | — | Profiled |
| Inferno SST FBL24 | — | — | Profiled |
| Inferno SST FSL25 | — | — | Profiled |
| Inferno SST FSL29 | — | — | Profiled |
KZ’s Inferno SST brochure (filed in KZ’s 2009 brochure folder; the brochure prints no year) lists 4 Inferno SST floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Inferno SST FKL19
KZ prints no tire size, interior height, grey-tank, black-tank, sleeping capacity for this model, so none is given. 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
5,990 lb dry and 10,400 lb GVWR, against this model’s 5,390 lb and 10,400 lb.
06 Loading it for a trip
Cargo capacity on the Inferno SST FKL19 is 5,010 lb.
No source publishes a tongue weight for the Inferno SST FKL19, so its hitch load has to come from a scale ticket taken with the trailer hitched.
07 Where this floorplan sits
Closest sibling: the Inferno SST FBL24, nearest on the published figures. It differs on 2 of the 3 fields both publish (this plan first): dry weight 5,390 lb vs 5,990 lb; cargo capacity 5,010 lb vs 4,410 lb. They match on GVWR.
| Inferno SST plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 10,400 | 1–3 of 4 | 10,400–12,000 |
| Dry weight (lb) | 5,390 | 1 of 4 | 5,390–7,860 |
| Cargo capacity (lb) | 5,010 | 4 of 4 | 3,740–5,010 |
Either side of it by GVWR: Inferno SST FBL24 matches it at 10,400 lb GVWR; Inferno SST FSL25 matches it at 10,400 lb GVWR.
| Nearest Inferno SST siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Inferno SST FKL19 | — | — | 5,390 | 10,400 | 5,010 | — | — |
| Inferno SST FBL24 | — | — | 5,990 | 10,400 | 4,410 | — | — |
| Inferno SST FSL25 | — | — | 6,660 | 10,400 | 3,740 | — | — |
| Inferno SST FSL29 | — | — | 7,860 | 12,000 | 4,140 | — | — |
All 4 Inferno SST floorplans: Inferno SST line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Inferno SST FKL19 | 10,400 | 5,390 | — | — |
| Access 32BR | 10,400 | 8,008 | 8 | 37 ft 11 in |
| Essence E25RK | 10,400 | 7,808 | — | 28 ft 0 in |
| inTech Black Wing 826-X | 10,400 | — | 4 | 25 ft 9 in |
| Jay Flight 331BTS | 10,400 | 8,680 | 12 | 37 ft 10 in |
| Arctic Fox Edge 22GT | 10,400 | 6,545 | 4 | 23 ft 10 in |
| Arctic Fox NXT 22GT | 10,400 | 5,910 | 4 | 23 ft 10 in |
08 Common questions about the Inferno SST FKL19
How much does the Inferno SST FKL19 weigh?
5,390 lb dry; 10,400 lb GVWR, the most it may weigh loaded.
How much can the Inferno SST FKL19 carry?
5,010 lb, 48% of its GVWR (median across 1,416 travel trailers here: 23%).
What size tow vehicle does the Inferno SST FKL19 need?
A tow rating of at least 10,400 lb, plus payload for the loaded tongue weight, passengers and cargo.
From the figures above.
09 What this page publishes, and what it does not
4 of the 18 fields this catalogue tracks are published for the Inferno SST FKL19. Not published: hitch weight, exterior length, exterior height, exterior width, interior height, fresh tank, grey tank, black tank, sleeps, slide count, tire specification, awning, refrigerator, air conditioning.
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 1 recall campaign against the Inferno SST line (a recall and a complaint are not the same thing).
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 Inferno SST line page.