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Fifth wheel · KZ factory figures · Single-Source Profile

2018 KZDurango 2500 D340FLT

A 38-foot fifth wheel that KZ lists at 10,570 lb dry, with a 13,000 lb GVWR, for 2018.

Tow-Critical Data — as built, MY2018

10,570lb
Dry Weight
13,000lb
GVWR
1,780lb
Hitch Weight
38ft
Length
Fifth wheel · KZ Built by · KZ RV Model year · 2018

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

Loaded weight budget for the Durango 2500 D340FLTHorizontal bar. Dry weight 10,570 pounds, then cargo capacity 2,430 pounds, against a GVWR of 13,000 pounds. Pin weight 1,780 pounds on the same scale.GVWR 13,000 lbsDry 10,570 lbsCargo capacity 2,430 lbsPin weight 1,780 lbs — same scale

Size, with end view

Scale outline of the Durango 2500 D340FLTScale outline of the Durango 2500 D340FLT. Overall length 38' 11", overall height 12' 9", overall width 8' 0".end view8' 0"38' 11" overall length12' 9"

Holding tanks

Holding tank capacities for the Durango 2500 D340FLTHolding tank capacities: fresh 67 gallons, grey 97 gallons, black 57 gallons.Fresh67 galGrey97 galBlack57 gal

Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.

Towing it

Tow rating needed13,000 lb
Published pin weight1,780 lb
Loaded pin weight, rule of thumb1,950–3,250 lb
In-bed fifth-wheel hitch rating needed13,000 lb towed / 3,250 lb pin
Payload check. Budget loaded, not dry: subtract the loaded range, every passenger and the bed and cab load from the payload on your tow vehicle’s door-pillar placard (49 CFR 571.110 S4.3).

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).

Check this floorplan against your own vehicle’s numbers

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.

FloorplanNominalSleepsNotable
Durango 2500 D315RKD34' 6"—Profiled
Durango 2500 D325RLT36' 8"—Profiled
Durango 2500 D318RLT34' 11"—Profiled
Durango 2500 D340FLT38' 11"—Profiled
Durango 2500 D337RET35' 4"—Profiled
Durango 2500 D343MBQ40' 7"—Profiled
Durango 2500 D347BHF40' 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

Lighter
KZ Durango 2500 D318RLT

10,360 lb dry and 13,000 lb GVWR, against this model’s 10,570 lb and 13,000 lb.

Heavier
KZ Durango 2500 D337RET

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 plansThis planPosition, low to highRange
GVWR (lb)13,0003–5 of 712,500–14,500
Dry weight (lb)10,5704 of 710,100–12,440
Cargo capacity (lb)2,4304 of 71,750–2,710
Hitch weight (lb)1,7801 of 71,780–2,300
Length38 ft 11 in5 of 734 ft 6 in–40 ft 7 in
Grey tank (gal)976–7 of 757–97
Black tank (gal)571–6 of 757–77

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 siblingsLengthSleepsDry (lb)GVWR (lb)CCC (lb)Hitch (lb)Fresh (gal)
Durango 2500 D340FLT38 ft 11 in—10,57013,0002,4301,78067
Durango 2500 D315RKD34 ft 6 in—10,10012,5002,4001,92067
Durango 2500 D318RLT34 ft 11 in—10,36013,0002,6402,03067
Durango 2500 D325RLT36 ft 8 in—10,29013,0002,7102,10067
Durango 2500 D337RET35 ft 4 in—10,75012,5001,7502,05067
Durango 2500 D343MBQ40 ft 7 in—11,79014,5002,7102,30067

All 7 Durango 2500 floorplans: Durango 2500 line hub.

Other lines, nearest by GVWRGVWR (lb)Dry (lb)SleepsLength
Durango 2500 D340FLT13,00010,570—38 ft 11 in
Inferno 3310T13,00010,263—35 ft 3 in
Durango D301RLT12,99511,280434 ft 3 in
Ridgeway 31RL12,99510,160435 ft 2 in
Eagle 339FLQS12,95010,745639 ft 0 in
Columbus 340RG12,87010,464—34 ft 8 in
Roamer 32RLTS13,20011,050436 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.

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.