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Fifth Wheel · KZ factory figures · Single-Source Profile

2027 KZ Durango GoldG366FBQ

A 40-foot Durango Gold fifth wheel that KZ lists at 14,100 lb unloaded, with a 17,500 lb GVWR, for 2027.

Tow-Critical Data — as built, MY2027

14,100lb
Dry Weight
17,500lb
GVWR
2,800lb
Pin Weight
40ft
Length
Sleeps 4 Fifth Wheel · Durango Gold Built by · KZ RV Model year · 2027

01 What makes it unique

KZ lists the 2027 Durango Gold G366FBQ at 14,100 lb unloaded (UVW), with a GVWR of 17,500 lb, a cargo carrying capacity of 3,400 lb and a dry pin weight of 2,800 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.

It is 40' 5" long and 13' 6" high with the air conditioner, with 76 gal fresh, 90 gal grey and 100 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 Gold floorplans KZ lists for 2027 with a published weight, it is number 2 by unloaded weight, in a range from 13,400 lb (G310RLQ) to 15,700 lb (G382MBF). 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 Gold G366FBQ, 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 G366FBQ differs from the other seven Durango Gold floorplans. Most distinctive first. How these ranks are worked out.

  • Cargo capacity, 3,400 lb: largest of eight; next is the G310RLQ (3,100 lb).
  • Cargo capacity as a share of GVWR, 19.4%: largest of eight; next is the G310RLQ (18.8%).
  • Dry pin weight, 2,800 lb: lightest of eight; next is the G390MLQ (2,900 lb).
  • Dry weight, 14,100 lb: second-lightest of eight, between the G310RLQ (13,400 lb) and the G390MLQ (14,550 lb).
  • Length, 40 ft 5 in: second-shortest of eight, between the G310RLQ (34 ft 11 in) and the G359ROQ (41 ft 8 in).
  • Black tank, 100 gal: largest of eight, level with the G388FLS; next are the G310RLQ, G359ROQ and four others (50 gal).
  • Dry pin weight as a share of dry weight, 19.9%: shared with the G390MLQ; of eight, one smaller and five larger, nearest the G382MBF (18.5%) and the G388FLS (20.3%).
  • GVWR, 17,500 lb: shared with the G390MLQ and G393MKF; of eight, one lower and four higher, nearest the G310RLQ (16,500 lb) and the G359ROQ, G382MBF and two others (17,995 lb).

Next to the G310RLQ, the nearest lighter floorplan by dry weight, the G366FBQ is 700 lb heavier by dry weight, has a GVWR 1,000 lb higher, has 300 lb more cargo capacity, has a dry pin weight 160 lb lighter, is 5 ft 6 in longer and has a black tank 50 gal larger; the two publish the same exterior height, interior height, fresh tank, grey tank and sleeping capacity.

Next to the G390MLQ, the nearest heavier floorplan by dry weight, the G366FBQ is 450 lb lighter by dry weight, has 450 lb more cargo capacity, has a dry pin weight 100 lb lighter, is 2 ft shorter and has a black tank 50 gal larger; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and sleeping capacity.

02 Full specifications

Dimensions

Exterior length
40' 5"
Exterior height
13' 6" (with A/C)
Exterior width
101"
Interior height
80"

Weights

Dry / unit base weight (UVW)
14,100 lb
GVWR (max loaded)
17,500 lb
Net cargo / payload (CCC)
3,400 lb
Hitch / dry pin weight
2,800 lb

Capacities

Fresh water
76 gal
Grey water
90 gal
Black water
100 gal
Propane
60 lb

Running gear

Hitch type
Fifth wheel (pin box)
Tire size
17.5"

Sleeping & layout

Sleeps
4
Refrigerator
24 cu ft
Awning
19'/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 G366FBQHorizontal bar. Dry weight 14,100 pounds, then cargo capacity 3,400 pounds, against a GVWR of 17,500 pounds. Dry pin weight 2,800 pounds on the same scale.GVWR 17,500 lbsDry 14,100 lbsCargo capacity 3,400 lbsDry pin weight 2,800 lbs — same scale

Size, with end view

Scale outline of the G366FBQScale outline of the G366FBQ. Overall length 40' 5", overall height 13' 6", overall width 8' 5".end view8' 5"40' 5" overall length13' 6"

Holding tanks

Holding tank capacities for the G366FBQHolding tank capacities: fresh 76 gallons, grey 90 gallons, black 100 gallons.Fresh76 galGrey90 galBlack100 gal

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

Towing it

Tow rating needed17,500 lb
Published dry pin weight2,800 lb
Loaded pin weight, rule of thumb2,800–4,375 lb
In-bed fifth-wheel hitch rating needed17,500 lb towed / 4,375 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 (17,500 lb) and the upper loaded pin estimate (4,375 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.

Check this floorplan against your own vehicle’s numbers

03 The Durango Gold floorplan family

KZ lists 12 Durango Gold floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.

FloorplanNominalSleepsNotable
G358RPQ36' 8"4Catalogued · dealer stock only
G383RLQ41' 5"4Catalogued · dealer stock only
G310RLQ34' 11"4Profiled
G366FBQ40' 5"4Profiled
G391RKF42' 5"6Catalogued · dealer stock only
G390MLQ42' 5"4Profiled
G393MKF42' 11"6Profiled
G384MSQ42' 3"4Profiled
G359ROQ41' 8"4Profiled
G388FLS42' 11"6Profiled
G382MBF42' 5"8Profiled
G312MLQ34' 11"4Catalogued · KZ prints no weights on its page

KZ lists 12 Durango Gold 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 G366FBQ

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

Lighter
Durango Gold G310RLQ

13,400 lb UVW and 16,500 lb GVWR, against this plan’s 14,100 lb and 17,500 lb.

Heavier
Durango Gold G390MLQ

14,550 lb UVW and 17,500 lb GVWR, against this plan’s 14,100 lb and 17,500 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), 19% of the G366FBQ’s 3,400 lb cargo capacity, leaving 2,769 lb (692 lb per rated berth). Across 8 Durango Gold floorplans the water share runs 19% to 27%, and this plan’s is the lowest. Nearest on that share: Durango Gold G310RLQ at 20%. 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 Gold G390MLQ, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 40 ft 5 in vs 42 ft 5 in; dry weight 14,100 lb vs 14,550 lb; cargo capacity 3,400 lb vs 2,950 lb; hitch weight 2,800 lb vs 2,900 lb; black tank 100 gal vs 50 gal. They match on sleeps, GVWR, fresh tank and grey tank.

Durango Gold plansThis planPosition, low to highRange
GVWR (lb)17,5002–4 of 816,500–17,995
Dry weight (lb)14,1002 of 813,400–15,700
Cargo capacity (lb)3,4008 of 82,295–3,400
Hitch weight (lb)2,8001 of 82,800–3,150
Length40 ft 5 in2 of 834 ft 11 in–42 ft 11 in
Black tank (gal)1007–8 of 850–100
Sleeps41–5 of 84–8

Either side of it by GVWR: Durango Gold G310RLQ is 1,000 lb lighter (16,500 lb GVWR); Durango Gold G390MLQ matches it at 17,500 lb GVWR.

Nearest Durango Gold siblingsLengthSleepsDry (lb)GVWR (lb)CCC (lb)Hitch (lb)Fresh (gal)
Durango Gold G366FBQ40 ft 5 in414,10017,5003,4002,80076
Durango Gold G390MLQ42 ft 5 in414,55017,5002,9502,90076
Durango Gold G384MSQ42 ft 3 in414,90017,9953,0953,05076
Durango Gold G388FLS42 ft 11 in615,33017,9952,6653,11076
Durango Gold G359ROQ41 ft 8 in415,10017,9952,8953,15076
Durango Gold G310RLQ34 ft 11 in413,40016,5003,1002,96076

All 8 Durango Gold floorplans: Durango Gold line hub.

Other lines, nearest by GVWRGVWR (lb)Dry (lb)SleepsLength
G366FBQ17,50014,100440 ft 5 in
Pinnacle 36FBTS17,50014,2704—
Seismic 35917,50013,4906—
Model Z 340017,49513,898—38 ft 11 in
Torque 38517,59013,732843 ft 5 in
Vengeance Rogue 391T14517,38514,014—45 ft 3 in
North Point 387FBTS17,65014,830442 ft 11 in

Against the G366FBQ: the Seismic 359 sleeps 2 more; the Model Z 3400 is 5 lb lighter and 2 ft shorter.

08 Common questions about the G366FBQ

How much does the G366FBQ weigh?

14,100 lb dry; 17,500 lb GVWR, the most it may weigh loaded.

How much can the G366FBQ carry?

3,400 lb, 19% 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 G366FBQ?

2,800 lb dry, 20% of the dry weight (median across 540 fifth wheels here: 19%).

What size tow vehicle does the G366FBQ need?

A tow rating of at least 17,500 lb, plus payload for the loaded pin weight, passengers and cargo.

How many people does the G366FBQ sleep?

It is rated to sleep 4. 3 of the 8 Durango Gold floorplans that publish a count sleep more.

What are the tank capacities on the G366FBQ?

Fresh 76, grey 90, black 100 gallons. Off hookups, fresh water runs out first.

How long is the G366FBQ?

40' 5" overall, tongue or pin box included.

From the figures above.

09 What this page publishes, and what it does not

14 of the 18 fields this catalogue tracks are published for the G366FBQ. Not published: slide count, axle count, air conditioning, tire size (a description is published, a size is not).

Sourcing rules: methodology.

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.