2007 KZJag 28JSS

KZ lists the 2007 Jag 28JSS at 6,230 lb dry, a GVWR of 10,000 lb, a net carrying capacity of 3,770 lb and a tongue weight of 660 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 29'3" long and 131" high. KZ prints its tanks as 30 gal fresh, 35 gal grey, 35 gal black.

Among the 19 Jag floorplans KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 12 from the lightest, in a range from 3,840 lb (Jag 20J) to 8,724 lb (Jag 38J2S). 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 Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year); model year 2007 comes from where the maker files it on its own site, not from the document’s text.

How the 28JSS differs from the other fourteen Jag travel trailers. Most distinctive first. How these ranks are worked out.

• Cargo capacity as a share of GVWR, 37.7%: second-largest of eleven, between the 29JSS (36.8%) and the 28JBSS (38.7%).
• Cargo capacity, 3,770 lb: third-largest of fifteen, between the 29JSS (3,680 lb) and the 28JBSS (3,870 lb).
• Dry weight, 6,230 lb: sixth-heaviest of fifteen, between the 28JBSS (6,130 lb) and the 29JSS (6,320 lb).
• Tongue weight as a share of dry weight, 10.6%: sixth-smallest of fifteen, between the 24JB (10.5%) and the 25JS (11.1%).
• Length, 29 ft 3 in: eighth-shortest of fifteen, between the 28JBSS (29 ft) and the 29JB and 29JBS (29 ft 5 in).
• GVWR, 10,000 lb: highest of fifteen, level with the 28JBSS, 29JSS and four others; next are the 25JQ, 25JS and three others (7,000 lb).
• Tongue weight, 660 lb: shared with the 32JSS; of fifteen, eight lighter and five heavier, nearest the 29JB (650 lb) and the 38JSS (700 lb).

Next to the 28JBSS, the nearest lighter floorplan by dry weight, the 28JSS is 100 lb heavier by dry weight, has 100 lb less cargo capacity, has a tongue weight 120 lb lighter and is 3 in longer; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.

Next to the 29JSS, the nearest heavier floorplan by dry weight, the 28JSS is 90 lb lighter by dry weight, has 90 lb more cargo capacity, has a tongue weight 450 lb lighter and is 9 in shorter; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.

KZ’s Jag brochure (filed in KZ’s 2007 brochure folder; the brochure prints no year) lists 19 Jag floorplans; every one with a printed weight has a page here.

A full 30-gallon fresh tank is about 249 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 7% of the Jag 28JSS’s 3,770 lb cargo capacity, leaving 3,521 lb. Across 15 Jag travel-trailer floorplans the water share runs 6% to 18%, and 12 give up more than this one. Nearest on that share: Jag 28JBSS at 6% and Jag 29JSS at 7%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).

The record at the top of this page is the 28JSS from 2007. The maker’s own documents for earlier model years also list the 28JSS, and that year is printed here: 2006. The figures change from year to year, so check the year on the trailer’s own label. A field a year’s brochure does not print reads “Not published” and is never filled from another year.