01 What makes it unique
KZ lists the 2027 Durango D321RKT at 11,200 lb unloaded (UVW), with a GVWR of 12,995 lb, a cargo carrying capacity of 1,795 lb and a dry pin weight of 2,340 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 34' 10" long and 13' 4" high with the air conditioner, with 76 gal fresh, 90 gal grey and 50 gal black tanks. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 631 lb of the cargo capacity before anything else is loaded.
Among the 8 Durango floorplans KZ lists for 2027 with a published weight, it is number 2 by unloaded weight, in a range from 11,170 lb (D304MKT) to 14,200 lb (D348BHF). 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 Durango D321RKT, 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 D321RKT differs from the other seven Durango floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 11,200 lb: second-lightest of eight, between the D304MKT (11,170 lb) and the D301RLT (11,280 lb).
- Dry pin weight as a share of dry weight, 20.9%: second-largest of eight, between the D349TBQ (20.3%) and the D304MKT (21.3%).
- Length, 34 ft 10 in: third-shortest of eight, between the D301RLT and D304MKT (34 ft 3 in) and the D302RLT (35 ft 2 in).
- Cargo capacity as a share of GVWR, 13.8%: fourth-smallest of eight, between the D302RLT (13.3%) and the D304MKT (14%).
- Dry pin weight, 2,340 lb: fourth-heaviest of eight, between the D301RLT (2,280 lb) and the D304MKT (2,380 lb).
- GVWR, 12,995 lb: lowest of eight, level with the D301RLT and D304MKT; next are the D302RLT and D326RLT (13,500 lb).
- Cargo capacity, 1,795 lb: shared with the D348BHF; of eight, one smaller and five larger, nearest the D301RLT (1,715 lb) and the D302RLT (1,800 lb).
Next to the D304MKT, the nearest lighter floorplan by dry weight, the D321RKT is 30 lb heavier by dry weight, has 30 lb less cargo capacity, has a dry pin weight 40 lb lighter and is 7 in longer; the two publish the same GVWR, exterior height, fresh tank, grey tank, black tank and sleeping capacity.
Next to the D301RLT, the nearest heavier floorplan by dry weight, the D321RKT is 80 lb lighter by dry weight, has 80 lb more cargo capacity, has a dry pin weight 60 lb heavier and is 7 in longer; the two publish the same GVWR, exterior height, fresh tank, grey tank, black tank and sleeping capacity.
02 Full specifications
Dimensions
- Exterior length
- 34' 10"
- Exterior height
- 13' 4" (with A/C)
- Exterior width
- 96"
- Interior height
- Not published by KZ
Weights
- Dry / unit base weight (UVW)
- 11,200 lb
- GVWR (max loaded)
- 12,995 lb
- Net cargo / payload (CCC)
- 1,795 lb
- Hitch / dry pin weight
- 2,340 lb
Capacities
- Fresh water
- 76 gal
- Grey water
- 90 gal
- Black water
- 50 gal
- Propane
- 60 lb
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16"
Sleeping & layout
- Sleeps
- 4
- Refrigerator
- 18 cu ft
- Awning
- 16'
How these published figures sit against the rest of the catalogue: fifth wheel pin weight and payload; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (12,995 lb) and the upper loaded pin estimate (3,249 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 15–25% of GVWR on the pin, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published dry figure, because loaded is never lighter than dry.
03 The Durango floorplan family
KZ lists 11 Durango floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| D281RKD | 33' 6" | 4 | Catalogued · dealer stock only |
| D304MKT | 34' 3" | 4 | Profiled |
| D321RKT | 34' 10" | 4 | Profiled |
| D301RLT | 34' 3" | 4 | Profiled |
| D326RLT | 37' 7" | 6 | Profiled |
| D333RLT | 37' 10" | 4 | Catalogued · dealer stock only |
| D302RLT | 35' 2" | 4 | Profiled |
| D339MLT | 37' 6" | 4 | Profiled |
| D341RPT | 37' 11" | 4 | Catalogued · dealer stock only |
| D349TBQ | 43' | 8 | Profiled |
| D348BHF | 42' 2" | 11 | Profiled |
KZ lists 11 Durango floorplans. Every 2027 plan with a published weight has a page here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What KZ does not publish for the D321RKT
KZ’s page prints no axle count and no price against this floorplan, so none is given. Nothing is filled from a sibling floorplan, 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
11,170 lb UVW and 12,995 lb GVWR, against this plan’s 11,200 lb and 12,995 lb.
11,280 lb UVW and 12,995 lb GVWR, against this plan’s 11,200 lb and 12,995 lb.
06 Loading it for a trip
A full 76-gallon fresh tank is about 631 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 35% of the D321RKT’s 1,795 lb cargo capacity, leaving 1,164 lb (291 lb per rated berth). Across 8 Durango floorplans the water share runs 24% to 37%, and 1 gives up more than this one. Nearest on that share: Durango D348BHF at 35% and Durango D301RLT at 37%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.120 S10.4.3).
07 Where this floorplan sits
Closest sibling: the Durango D304MKT, nearest on the published figures. It differs on 4 of the 9 fields both publish (this plan first): length 34 ft 10 in vs 34 ft 3 in; dry weight 11,200 lb vs 11,170 lb; cargo capacity 1,795 lb vs 1,825 lb; hitch weight 2,340 lb vs 2,380 lb. They match on sleeps, GVWR, fresh tank, grey tank and black tank.
| Durango plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 12,995 | 1–3 of 8 | 12,995–15,995 |
| Dry weight (lb) | 11,200 | 2 of 8 | 11,170–14,200 |
| Cargo capacity (lb) | 1,795 | 2–3 of 8 | 1,715–2,615 |
| Hitch weight (lb) | 2,340 | 5 of 8 | 2,100–2,720 |
| Length | 34 ft 10 in | 3 of 8 | 34 ft 3 in–43 ft 0 in |
| Grey tank (gal) | 90 | 3–8 of 8 | 50–90 |
| Sleeps | 4 | 1–5 of 8 | 4–11 |
Either side of it by GVWR: Durango D304MKT matches it at 12,995 lb GVWR; Durango D302RLT is 505 lb heavier (13,500 lb GVWR).
| Nearest Durango siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Durango D321RKT | 34 ft 10 in | 4 | 11,200 | 12,995 | 1,795 | 2,340 | 76 |
| Durango D304MKT | 34 ft 3 in | 4 | 11,170 | 12,995 | 1,825 | 2,380 | 76 |
| Durango D301RLT | 34 ft 3 in | 4 | 11,280 | 12,995 | 1,715 | 2,280 | 76 |
| Durango D302RLT | 35 ft 2 in | 4 | 11,700 | 13,500 | 1,800 | 2,150 | 76 |
| Durango D339MLT | 37 ft 6 in | 4 | 11,770 | 13,795 | 2,025 | 2,190 | 76 |
| Durango D326RLT | 37 ft 7 in | 6 | 11,500 | 13,500 | 2,000 | 2,100 | 76 |
All 8 Durango floorplans: Durango line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| D321RKT | 12,995 | 11,200 | 4 | 34 ft 10 in |
| Ridgeway 31RL | 12,995 | 10,160 | 4 | 35 ft 2 in |
| Eagle 339FLQS | 12,950 | 10,745 | 6 | 39 ft 0 in |
| Columbus 340RG | 12,870 | 10,464 | — | 34 ft 8 in |
| Roamer 32RLTS | 13,200 | 11,050 | 4 | 36 ft 7 in |
| Sundance Fifth Wheel 32RLBS | 13,200 | 10,840 | 4 | 36 ft 7 in |
| Chaparral Lite 368TBH | 12,500 | 9,850 | — | 42 ft 0 in |
Against the D321RKT: the Eagle 339FLQS is 45 lb lighter and 4 ft longer and sleeps 2 more; the Columbus 340RG is 125 lb lighter.
08 Common questions about the D321RKT
How much does the D321RKT weigh?
11,200 lb dry; 12,995 lb GVWR, the most it may weigh loaded.
How much can the D321RKT carry?
1,795 lb, 14% of its GVWR (median across 334 fifth wheels here: 18%). A full fresh tank uses 631 lb of it.
What is the pin weight of the D321RKT?
2,340 lb dry, 21% of the dry weight (median across 540 fifth wheels here: 19%).
What size tow vehicle does the D321RKT need?
A tow rating of at least 12,995 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the D321RKT sleep?
It is rated to sleep 4. 3 of the 8 Durango floorplans that publish a count sleep more.
What are the tank capacities on the D321RKT?
Fresh 76, grey 90, black 50 gallons. Off hookups, fresh water runs out first.
How long is the D321RKT?
34' 10" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
13 of the 18 fields this catalogue tracks are published for the D321RKT. Not published: interior height, slide count, axle count, air conditioning, tire size (a description is published, a size is not).
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 17 recall campaigns and 10 owner complaints (model years 2005 on) against the Durango line (a recall and a complaint are not the same thing).
What to look at on a used one. Across the 10 complaints filed on this line the most-reported components are structure (50%), tires (20%) and suspension (10%).
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 Durango line page.