2027 KZ Sportster X33X

KZ lists the 2027 Sportster X 33X at 10,300 lb unloaded (UVW), with a GVWR of 13,260 lb, a cargo carrying capacity of 3,140 lb and a dry hitch weight of 1,710 lb. KZ’s own figures do not add up — a conflict, stated not resolved: UVW plus cargo capacity is 13,440 lb, against a GVWR of 13,260 lb. All three are printed as KZ gives them and none is corrected; the federal label on the trailer is the one to trust.

It is 38' 9" long and 12' 6" high with the air conditioner, with 94 gal fresh, 76 gal grey and 40 gal black tanks. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 780 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 4 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 33X, 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 33X differs from the other six Sportster X floorplans. Most distinctive first. How these ranks are worked out.

• Cargo capacity, 3,140 lb: third-smallest of seven, between the 20X (2,920 lb) and the 22X (3,950 lb).
• Length, 38 ft 9 in: third-longest of seven, between the 3018X (35 ft 7 in) and the 3411X (39 ft 11 in).
• Dry weight, 10,300 lb: fourth-lightest of seven, between the 26X (8,530 lb) and the 3018X (11,560 lb).
• GVWR, 13,260 lb: fourth-lowest of seven, between the 26X (12,750 lb) and the 3018X and 3411X (16,000 lb).
• Dry tongue weight, 1,710 lb: fourth-lightest of seven, between the 22X (1,210 lb) and the 3018X (2,330 lb).
• Dry tongue weight as a share of dry weight, 16.6%: fourth-smallest of seven, between the 20X (15.5%) and the 3411X (18.6%).
• Grey tank, 76 gal: largest of seven, level with the 22X; next are the 3018X, 3411X and 3914X (50 gal).
• Black tank, 40 gal: shared with the 22X and 26X; of seven, one smaller and three larger, nearest the 20X (38 gal) and the 3018X (50 gal).

Next to the 26X, the nearest lighter floorplan by dry weight, the 33X is 1,770 lb heavier by dry weight, has a GVWR 510 lb higher, has 1,080 lb less cargo capacity, has a dry tongue weight 570 lb heavier, is 6 ft 8 in longer and has a grey tank 38 gal larger; the two publish the same exterior height, interior height, fresh tank, black tank and sleeping capacity.

Next to the 3018X, the nearest heavier floorplan by dry weight, the 33X is 1,260 lb lighter by dry weight, has a GVWR 2,740 lb lower, has 1,300 lb less cargo capacity, has a dry tongue weight 620 lb lighter, is 3 ft 2 in longer, stands 11 in lower, has 11 in less interior height, has a fresh tank 6 gal smaller, has a grey tank 26 gal larger and has a black tank 10 gal smaller; the two publish the same sleeping capacity.

KZ lists 9 Sportster X floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.

A full 94-gallon fresh tank is about 780 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 25% of the 33X’s 3,140 lb cargo capacity, leaving 2,360 lb (393 lb per rated berth). Across 7 Sportster X floorplans the water share runs 15% to 34%, and 2 give up more than this one. Nearest on that share: Sportster X 22X at 20% and Sportster X 20X at 27%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).