01 What makes it unique
KZ lists the 2018 Durango 2500 D340FLT at 10,570 lb dry, a GVWR of 13,000 lb, a net carrying capacity of 2,430 lb and a pin weight of 1,780 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 38' 11" long and 12' 9" high. KZ prints its tanks as 67 gal fresh, 97 gal grey, 57 gal black.
Among the 7 Durango 2500 floorplans KZ’s Durango 2500 brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 4 from the lightest, in a range from 10,100 lb (Durango 2500 D315RKD) to 12,440 lb (Durango 2500 D347BHF). 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 Durango 2500 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 D340FLT differs from the other six Durango 2500 floorplans. Most distinctive first. How these ranks are worked out.
- Pin weight, 1,780 lb: lightest of seven; next is the D315RKD (1,920 lb).
- Pin weight as a share of dry weight, 16.8%: smallest of seven; next is the D347BHF (17%).
- Length, 38 ft 11 in: third-longest of seven, between the D325RLT (36 ft 8 in) and the D347BHF (40 ft 6 in).
- Dry weight, 10,570 lb: fourth-lightest of seven, between the D318RLT (10,360 lb) and the D337RET (10,750 lb).
- Cargo capacity, 2,430 lb: fourth-smallest of seven, between the D315RKD (2,400 lb) and the D318RLT (2,640 lb).
- Grey tank, 97 gal: largest of seven, level with the D315RKD; next are the D318RLT, D325RLT and three others (57 gal).
- Cargo capacity as a share of GVWR, 18.7%: shared with the D343MBQ; of seven, two smaller and three larger, nearest the D347BHF (14.2%) and the D315RKD (19.2%).
- Exterior height, 12 ft 9 in: shared with the D318RLT and D325RLT; of seven, one lower and three taller, nearest the D315RKD (12 ft 8 in) and the D337RET, D343MBQ and D347BHF (12 ft 10 in).
- GVWR, 13,000 lb: shared with the D318RLT and D325RLT; of seven, two lower and two higher, nearest the D315RKD and D337RET (12,500 lb) and the D343MBQ and D347BHF (14,500 lb).
Next to the D318RLT, the nearest lighter floorplan by dry weight, the D340FLT is 210 lb heavier by dry weight, has 210 lb less cargo capacity, has a pin weight 250 lb lighter, is 4 ft longer and has a grey tank 40 gal larger; the two publish the same GVWR, exterior height, fresh tank and black tank.
Next to the D337RET, the nearest heavier floorplan by dry weight, the D340FLT is 180 lb lighter by dry weight, has a GVWR 500 lb higher, has 680 lb more cargo capacity, has a pin weight 270 lb lighter, is 3 ft 7 in longer, stands 1 in lower and has a grey tank 40 gal larger; the two publish the same fresh tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 38' 11"
- Exterior height
- 12' 9"
- Exterior width
- 96"
- Interior height
- Not published by KZ
Weights
- Dry / unit base weight (UVW)
- 10,570 lb
- GVWR (max loaded)
- 13,000 lb
- Net cargo / payload (CCC)
- 2,430 lb
- Hitch / pin weight
- 1,780 lb
Capacities
- Fresh water
- 67 gal
- Grey water
- 97 gal
- Black water
- 57 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- 16"
Sleeping & layout
- Sleeps
- Not published by KZ
- Dry Axle Weight*
- 8,790
- Refrigerator (cu. feet)***
- 8
- Water Heater Cap. (gal. G/E w/DSI)
- 12
- 1/2 Bath Cap.
- N/A
- LP Gas Cap. (lbs.)
- 60
- Furnace BTUs (1,000s)
- 35
- Model year source
- The brochure itself prints no model year; KZ files it under 2018 in its own brochure folder (kz-rv.com/brochures/2018/).
- Length basis (as printed)
- **Exterior length is measured from the center of the hitch pin to the rear bumper.
- Awning
- 17' w/11' opt.
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 (13,000 lb) and the upper loaded pin estimate (3,250 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).
03 The Durango 2500 floorplan family
KZ’s Durango 2500 brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists 7 Durango 2500 floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Durango 2500 D315RKD | 34' 6" | — | Profiled |
| Durango 2500 D325RLT | 36' 8" | — | Profiled |
| Durango 2500 D318RLT | 34' 11" | — | Profiled |
| Durango 2500 D340FLT | 38' 11" | — | Profiled |
| Durango 2500 D337RET | 35' 4" | — | Profiled |
| Durango 2500 D343MBQ | 40' 7" | — | Profiled |
| Durango 2500 D347BHF | 40' 6" | — | Profiled |
KZ’s Durango 2500 brochure (filed in KZ’s 2018 brochure folder; the brochure prints no year) lists 7 Durango 2500 floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Durango 2500 D340FLT
KZ prints no interior height, sleeping capacity for this model, so none is given. Nothing is filled from a sibling model, 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
10,360 lb dry and 13,000 lb GVWR, against this model’s 10,570 lb and 13,000 lb.
10,750 lb dry and 12,500 lb GVWR, against this model’s 10,570 lb and 13,000 lb.
06 Loading it for a trip
A full 67-gallon fresh tank is about 556 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 23% of the Durango 2500 D340FLT’s 2,430 lb cargo capacity, leaving 1,874 lb. Across 7 Durango 2500 floorplans the water share runs 21% to 32%, and 3 give up more than this one. Nearest on that share: Durango 2500 D318RLT at 21% and Durango 2500 D315RKD at 23%. 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 2500 D315RKD, nearest on the published figures. It differs on 5 of the 8 fields both publish (this plan first): length 38 ft 11 in vs 34 ft 6 in; dry weight 10,570 lb vs 10,100 lb; GVWR 13,000 lb vs 12,500 lb; cargo capacity 2,430 lb vs 2,400 lb; hitch weight 1,780 lb vs 1,920 lb. They match on fresh tank, grey tank and black tank.
| Durango 2500 plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 13,000 | 3–5 of 7 | 12,500–14,500 |
| Dry weight (lb) | 10,570 | 4 of 7 | 10,100–12,440 |
| Cargo capacity (lb) | 2,430 | 4 of 7 | 1,750–2,710 |
| Hitch weight (lb) | 1,780 | 1 of 7 | 1,780–2,300 |
| Length | 38 ft 11 in | 5 of 7 | 34 ft 6 in–40 ft 7 in |
| Grey tank (gal) | 97 | 6–7 of 7 | 57–97 |
| Black tank (gal) | 57 | 1–6 of 7 | 57–77 |
Either side of it by GVWR: Durango 2500 D325RLT matches it at 13,000 lb GVWR; Durango 2500 D343MBQ is 1,500 lb heavier (14,500 lb GVWR).
| Nearest Durango 2500 siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Durango 2500 D340FLT | 38 ft 11 in | — | 10,570 | 13,000 | 2,430 | 1,780 | 67 |
| Durango 2500 D315RKD | 34 ft 6 in | — | 10,100 | 12,500 | 2,400 | 1,920 | 67 |
| Durango 2500 D318RLT | 34 ft 11 in | — | 10,360 | 13,000 | 2,640 | 2,030 | 67 |
| Durango 2500 D325RLT | 36 ft 8 in | — | 10,290 | 13,000 | 2,710 | 2,100 | 67 |
| Durango 2500 D337RET | 35 ft 4 in | — | 10,750 | 12,500 | 1,750 | 2,050 | 67 |
| Durango 2500 D343MBQ | 40 ft 7 in | — | 11,790 | 14,500 | 2,710 | 2,300 | 67 |
All 7 Durango 2500 floorplans: Durango 2500 line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Durango 2500 D340FLT | 13,000 | 10,570 | — | 38 ft 11 in |
| Inferno 3310T | 13,000 | 10,263 | — | 35 ft 3 in |
| Durango D301RLT | 12,995 | 11,280 | 4 | 34 ft 3 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 |
Against the Durango 2500 D340FLT: the Inferno 3310T is 4 ft shorter; the Durango D301RLT is 5 lb lighter and 5 ft shorter; the Ridgeway 31RL is 5 lb lighter and 4 ft shorter.
08 Common questions about the Durango 2500 D340FLT
How much does the Durango 2500 D340FLT weigh?
10,570 lb dry; 13,000 lb GVWR, the most it may weigh loaded.
How much can the Durango 2500 D340FLT carry?
2,430 lb, 19% of its GVWR (median across 442 fifth wheels here: 19%). A full fresh tank uses 556 lb of it.
What is the pin weight of the Durango 2500 D340FLT?
1,780 lb as published, 17% of the dry weight (median across 686 fifth wheels here: 19%).
What size tow vehicle does the Durango 2500 D340FLT need?
A tow rating of at least 13,000 lb, plus payload for the loaded pin weight, passengers and cargo.
What are the tank capacities on the Durango 2500 D340FLT?
Fresh 67, grey 97, black 57 gallons. Off hookups, fresh water runs out first.
How long is the Durango 2500 D340FLT?
38' 11" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
11 of the 18 fields this catalogue tracks are published for the Durango 2500 D340FLT. Not published: interior height, sleeps, slide count, axle count, refrigerator, 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
No recall campaign or owner complaint in our NHTSA data names the Durango 2500 line. Read that as no result found, not as a clean record.
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 2500 line page.