2009 KZInferno SST FSL25

KZ lists the 2009 Inferno SST FSL25 at 6,660 lb dry, a GVWR of 10,400 lb, a net carrying capacity of 3,740 lb and a hitch weight of 980 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 3 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 FSL25 differs from the other three Inferno SST floorplans. Most distinctive first. How these ranks are worked out.

• Cargo capacity, 3,740 lb: smallest of four; next is the FSL29 (4,140 lb).
• Dry weight, 6,660 lb: second-heaviest of four, between the FBL24 (5,990 lb) and the FSL29 (7,860 lb).
• Cargo capacity as a share of GVWR, 36%: second-smallest of four, between the FSL29 (34.5%) and the FBL24 (42.4%).

Next to the FBL24, the nearest lighter floorplan by dry weight, the FSL25 is 670 lb heavier by dry weight and has 670 lb less cargo capacity; the two publish the same GVWR.

Next to the FSL29, the nearest heavier floorplan by dry weight, the FSL25 is 1,200 lb lighter by dry weight, has a GVWR 1,600 lb lower and has 400 lb less cargo capacity.

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.

Cargo capacity on the Inferno SST FSL25 is 3,740 lb.

No source publishes a tongue weight for the Inferno SST FSL25, so its hitch load has to come from a scale ticket taken with the trailer hitched.