2018 KZSidewinder 3814DK

KZ lists the 2018 Sidewinder 3814DK at 12,430 lb dry, a GVWR of 17,000 lb, a net carrying capacity of 4,570 lb and a pin weight of 2,620 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 41' 4" long and 13' 4" high. KZ prints its tanks as 116 gal fresh, 57 gal grey, 57 gal black.

Among the 6 Sidewinder floorplans KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 5 from the lightest, in a range from 10,470 lb (Sidewinder 3214DK) to 13,500 lb (Sidewinder 3914TK). 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 Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year); model year 2018 comes from where the maker files it on its own site, not from the document’s text.

How the 3814DK differs from the other five Sidewinder floorplans. Most distinctive first. How these ranks are worked out.

• Cargo capacity, 4,570 lb: largest of six; next is the 3214DK (4,525 lb).
• Dry weight, 12,430 lb: second-heaviest of six, between the 3610DK (11,640 lb) and the 3914TK (13,500 lb).
• Length, 41 ft 4 in: second-longest of six, between the 3610DK (38 ft 11 in) and the 3914TK (46 ft 6 in).
• Cargo capacity as a share of GVWR, 26.9%: third-largest of six, between the 3511DK (24.2%) and the 3517DK (28.1%).
• Pin weight, 2,620 lb: third-heaviest of six, between the 3914TK (2,600 lb) and the 3517DK (2,640 lb).
• Pin weight as a share of dry weight, 21.1%: third-largest of six, between the 3511DK (21%) and the 3517DK (24.5%).
• GVWR, 17,000 lb: highest of six, level with the 3914TK; next are the 3214DK, 3511DK and two others (14,995 lb).

Next to the 3610DK, the nearest lighter floorplan by dry weight, the 3814DK is 790 lb heavier by dry weight, has a GVWR 2,005 lb higher, has 1,215 lb more cargo capacity, has a pin weight 190 lb heavier and is 2 ft 5 in longer; the two publish the same exterior height, interior height, fresh tank, grey tank and black tank.

Next to the 3914TK, the nearest heavier floorplan by dry weight, the 3814DK is 1,070 lb lighter by dry weight, has 1,070 lb more cargo capacity, has a pin weight 20 lb heavier and is 5 ft 2 in shorter; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.

KZ’s Sidewinder brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists 6 Sidewinder floorplans; every one with a printed weight has a page here.

A full 116-gallon fresh tank is about 963 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 21% of the Sidewinder 3814DK’s 4,570 lb cargo capacity, leaving 3,607 lb. Across 6 Sidewinder floorplans the water share runs 21% to 29%, and this plan’s is the lowest. Nearest on that share: Sidewinder 3214DK at 21%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).

The maker’s own owner’s manual for each model year on this page, linked where the maker publishes it. Each link goes to the maker’s file, labelled as the maker labels it; a year with no manual of its own is not filled from another year.

The record at the top of this page is the 3814DK from 2018. The maker’s own documents for earlier model years also list the 3814DK, and that year is printed here: 2017. 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.