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Fifth wheel (toy hauler) · KZ factory figures · Single-Source Profile

2014 KZInferno 3710T

A 40-foot fifth wheel (toy hauler) that KZ lists at 12,415 lb dry, with a 16,000 lb GVWR, for 2014.

Tow-Critical Data — as built, MY2014

12,415lb
Dry Weight
16,000lb
GVWR
2,310lb
Hitch Weight
40ft
Length
Fifth wheel (toy hauler) · KZ Built by · KZ RV Model year · 2014

01 What makes it unique

KZ lists the 2014 Inferno 3710T at 12,415 lb dry, a GVWR of 16,000 lb, a net carrying capacity of 3,585 lb and a pin weight of 2,310 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 40' 7" long and 160" high. KZ prints its tanks as 110 gal fresh.

Among the 9 Inferno floorplans KZ’s Inferno brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists with a published dry weight, it is number 7 from the lightest, in a range from 10,263 lb (Inferno 3310T) to 13,576 lb (Inferno 4005T). 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 Inferno brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year); model year 2014 comes from where the maker files it on its own site, not from the document’s text.

How the 3710T differs from the other eight Inferno floorplans. Most distinctive first. How these ranks are worked out.

  • Dry weight, 12,415 lb: third-heaviest of nine, between the 3732T (12,390 lb) and the 3712T (12,680 lb).
  • Cargo capacity as a share of GVWR, 22.4%: third-smallest of nine, between the 3410T (22.3%) and the 3732T (22.6%).
  • Pin weight, 2,310 lb: fourth-heaviest of nine, between the 3712T (2,305 lb) and the 3010T (2,340 lb).
  • Pin weight as a share of dry weight, 18.6%: fourth-smallest of nine, between the 3712T (18.2%) and the 3410T (19.6%).
  • Length, 40 ft 7 in: fourth-longest of nine, between the 3722T (40 ft) and the 3732T (41 ft 8 in).
  • Cargo capacity, 3,585 lb: fifth-smallest of nine, between the 3312T (3,550 lb) and the 3732T (3,610 lb).
  • Exterior height, 13 ft 4 in: tallest of nine, level with the 3010T and 4005T; next are the 3310T and 3732T (13 ft 2 in).
  • GVWR, 16,000 lb: shared with the 3722T and 3732T; of nine, four lower and two higher, nearest the 3312T and 3410T (14,200 lb) and the 3712T (17,100 lb).

Next to the 3732T, the nearest lighter floorplan by dry weight, the 3710T is 25 lb heavier by dry weight, has 25 lb less cargo capacity, has a pin weight 300 lb lighter, is 1 ft 1 in shorter and stands 2 in taller; the two publish the same GVWR, interior height and fresh tank.

Next to the 3712T, the nearest heavier floorplan by dry weight, the 3710T is 265 lb lighter by dry weight, has a GVWR 1,100 lb lower, has 835 lb less cargo capacity, has a pin weight 5 lb heavier, is 2 ft 2 in shorter and stands 3 in taller; the two publish the same interior height and fresh tank.

02 Full specifications

Dimensions

Exterior length
40' 7"
Exterior height
160"
Exterior width
100"
Interior height
76"

Weights

Dry / unit base weight (UVW)
12,415 lb
GVWR (max loaded)
16,000 lb
Net cargo / payload (CCC)
3,585 lb
Hitch / pin weight
2,310 lb

Capacities

Fresh water
110 gal
Grey water
Not published by KZ
Black water
Not published by KZ

Running gear

Hitch type
Fifth wheel (pin box)
Tire size
16"

Sleeping & layout

Sleeps
Not published by KZ
Dry Axle Weight*
10,105
Refrigerator (cu. feet)
6
Water Heater Cap. (gal. G/E w/DSI)
12
Waste & Gray Water Cap. (gal.)
114
LP Gas Cap. (lbs.)
60
Furnace BTUs (1,000s)
35
Model year source
The brochure itself prints no model year; KZ files it under 2014 in its own brochure folder (kz-rv.com/brochures/2014/).
Awning
15'

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 Inferno 3710THorizontal bar. Dry weight 12,415 pounds, then cargo capacity 3,585 pounds, against a GVWR of 16,000 pounds. Pin weight 2,310 pounds on the same scale.GVWR 16,000 lbsDry 12,415 lbsCargo capacity 3,585 lbsPin weight 2,310 lbs — same scale

Size, with end view

Scale outline of the Inferno 3710TScale outline of the Inferno 3710T. Overall length 40' 7", overall height 13' 4", overall width 8' 4".end view8' 4"40' 7" overall length13' 4"

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

Towing it

Tow rating needed16,000 lb
Published pin weight2,310 lb
Loaded pin weight, rule of thumb2,400–4,000 lb
In-bed fifth-wheel hitch rating needed16,000 lb towed / 4,000 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 (16,000 lb) and the upper loaded pin estimate (4,000 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 Inferno floorplan family

KZ’s Inferno brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists 9 Inferno floorplans; every one with a printed weight has a page here.

FloorplanNominalSleepsNotable
Inferno 3310T35' 3"—Profiled
Inferno 3010T35' 1"—Profiled
Inferno 3312T37' 3"—Profiled
Inferno 3410T36' 9"—Profiled
Inferno 3722T40' 0"—Profiled
Inferno 3732T41' 8"—Profiled
Inferno 3710T40' 7"—Profiled
Inferno 3712T42' 9"—Profiled
Inferno 4005T44' 5"—Profiled

KZ’s Inferno brochure (filed in KZ’s 2014 brochure folder; the brochure prints no year) lists 9 Inferno floorplans. Every one with a printed weight has a page here.

04 Notes on this floorplan

What KZ does not publish for the Inferno 3710T

KZ prints no grey-tank, black-tank, 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 Inferno 3732T

12,390 lb dry and 16,000 lb GVWR, against this model’s 12,415 lb and 16,000 lb.

Heavier
KZ Inferno 3712T

12,680 lb dry and 17,100 lb GVWR, against this model’s 12,415 lb and 16,000 lb.

06 Loading it for a trip

A full 110-gallon fresh tank is about 913 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 25% of the Inferno 3710T’s 3,585 lb cargo capacity, leaving 2,672 lb. Across 9 Inferno floorplans the water share runs 19% to 33%, and 4 give up more than this one. Nearest on that share: Inferno 3732T at 25% and Inferno 3312T at 26%. 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 Inferno 3732T, nearest on the published figures. It differs on 4 of the 6 fields both publish (this plan first): length 40 ft 7 in vs 41 ft 8 in; dry weight 12,415 lb vs 12,390 lb; cargo capacity 3,585 lb vs 3,610 lb; hitch weight 2,310 lb vs 2,610 lb. They match on GVWR and fresh tank.

Inferno plansThis planPosition, low to highRange
GVWR (lb)16,0005–7 of 913,000–18,500
Dry weight (lb)12,4157 of 910,263–13,576
Cargo capacity (lb)3,5855 of 92,737–4,924
Hitch weight (lb)2,3106 of 91,820–3,016
Length40 ft 7 in6 of 935 ft 1 in–44 ft 5 in

Either side of it by GVWR: Inferno 3410T is 1,800 lb lighter (14,200 lb GVWR); Inferno 3722T matches it at 16,000 lb GVWR.

Nearest Inferno siblingsLengthSleepsDry (lb)GVWR (lb)CCC (lb)Hitch (lb)Fresh (gal)
Inferno 3710T40 ft 7 in—12,41516,0003,5852,310110
Inferno 3732T41 ft 8 in—12,39016,0003,6102,610110
Inferno 3722T40 ft 0 in—12,20016,0003,8002,080110
Inferno 3712T42 ft 9 in—12,68017,1004,4202,305110
Inferno 3312T37 ft 3 in—10,65014,2003,5502,250110
Inferno 3410T36 ft 9 in—11,03514,2003,1652,160110

All 9 Inferno floorplans: Inferno line hub.

Other lines, nearest by GVWRGVWR (lb)Dry (lb)SleepsLength
Inferno 3710T16,00012,415—40 ft 7 in
Big Country 3200RLK16,00012,140436 ft 5 in
Bighorn 31RL16,00013,060436 ft 0 in
Bighorn Traveler 37FB16,00012,115442 ft 4 in
ElkRidge 32RLS16,00010,788436 ft 2 in
Montego Bay 30 KSB-316,00011,677—35 ft 2 in
North Point 310RLTS16,00013,375436 ft 0 in

Against the Inferno 3710T: the Big Country 3200RLK is 4 ft shorter; the Bighorn 31RL is 5 ft shorter; the Bighorn Traveler 37FB is 2 ft longer.

08 Common questions about the Inferno 3710T

How much does the Inferno 3710T weigh?

12,415 lb dry; 16,000 lb GVWR, the most it may weigh loaded.

How much can the Inferno 3710T carry?

3,585 lb, 22% of its GVWR (median across 442 fifth wheels here: 19%). A full fresh tank uses 913 lb of it.

What is the pin weight of the Inferno 3710T?

2,310 lb as published, 19% of the dry weight (median across 686 fifth wheels here: 19%).

What size tow vehicle does the Inferno 3710T need?

A tow rating of at least 16,000 lb, plus payload for the loaded pin weight, passengers and cargo.

How long is the Inferno 3710T?

40' 7" overall, tongue or pin box included.

From the figures above.

09 What this page publishes, and what it does not

10 of the 18 fields this catalogue tracks are published for the Inferno 3710T. Not published: grey tank, black tank, 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

NHTSA holds 4 recall campaigns and 3 owner complaints (model years 2005 on) against the Inferno line (a recall and a complaint are not the same thing).

Too few reports to show a pattern. 3 complaints have been filed on this line — not enough to say what fails most often. They cover service brakes, hydraulic, structure and suspension.

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 Inferno line page.

Earlier model years

The record at the top of this page is the 3710T from 2014. The maker’s own documents for earlier model years also list the 3710T, and those 2 years are, each from its own brochure printed here: 2012 to 2013. 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.

Model yearDry (UVW)GVWRCargo (CCC)Dry hitchLengthSleeps
201312,41516,0003,5852,31040' 7"Not published
201212,59016,000Not published2,31040' 7"Not published

Full record for each earlier model year

2013 3710T 12,415 lb dry · 16,000 lb GVWR

Dimensions

Exterior length
40' 7"
Exterior width
100"
Exterior height
160"
Interior height
76"

Weights

Dry / unit base weight (UVW)
12,415 lbs
GVWR (max loaded)
16,000 lbs
Net cargo / payload (CCC)
3,585 lbs
Dry pin weight
2,310 lbs

Running gear

Tire size
16"
Hitch type
Fifth-wheel (in-bed)
Model year of record
2013

Capacities

Fresh water
110 gal
Grey water
Not published
Black water
Not published
Awning
15'

Sleeping

Sleeps
Not published

As printed in this brochure

Dry Axle Weight* (as printed)
10,105
Refrigerator (cu. feet) (as printed)
6
Water Heater Cap. (gal. G/E w/DSI) (as printed)
12
Waste & Gray Water Cap. (gal.) (as printed)
114
LP Gas Cap. (lbs.) (as printed)
60
Furnace BTUs (1,000s) (as printed)
35
Dry Hitch Weight footnote
Brochure footnote: "This weight reflects the rolling average unit weight for each model."

Changed from 2012 to 2013 (only figures both brochures print): Dry weight (UVW) 12,590 → 12,415 lb (−175). Unchanged: GVWR, Dry hitch weight, Fresh tank, Length.

Source for 2013. Printed in KZ RV’s Inferno brochure (www.kz-rv.com). The document itself prints no model year; KZ RV files it under 2013 in its own brochure folder. Dry weight plus cargo capacity equals the printed GVWR exactly (12,415 + 3,585 = 16,000 lb). Nothing in this record is copied from another model year.

NHTSA record for 2013 Inferno

1 recall campaign filed with NHTSA names the Inferno for model year 2013:

  • 17V749000 (reported 21 Nov 2017): Equipment

No owner complaint filed with NHTSA names the Inferno for model year 2013. NHTSA files recalls and complaints by line and model year, not by floorplan, so a campaign listed here may not affect every Inferno floorplan; the recall notice says which units it covers.

2012 3710T 12,590 lb dry · 16,000 lb GVWR

Dimensions

Exterior length
40' 7"
Exterior width
100"
Exterior height
160"
Interior height
76"

Weights

Dry / unit base weight (UVW)
12,590 lbs
GVWR (max loaded)
16,000 lbs
Net cargo / payload (CCC)
Not published
Dry hitch weight
2,310 lbs

Running gear

Tire size
Not published
Hitch type
Not stated in this brochure
Model year of record
2012

Capacities

Fresh water
110 gal
Grey water
Not published
Black water
Not published
Awning
15'

Sleeping

Sleeps
Not published

As printed in this brochure

Dry Axle Weight* (as printed)
10,280
NCC (Net Carrying Capacity) (as printed; not mapped to CCC)
3,410
Waste & Gray Water Cap. (gal.) (as printed)
114
LP Gas Cap. (lbs.) (as printed)
60
Tire Size (as printed)
16"
Table head as printed
TRAVEL TRAILERS (hitch type not transcribed)
Weight footnote
Brochure footnote: "*This weight reflects the rolling average unit weight for each model. Your trailer weight will vary according to optional equipment."

Source for 2012. Printed in KZ RV’s Inferno brochure (www.kz-rv.com). The document itself prints no model year; KZ RV files it under 2012 in its own brochure folder. Nothing in this record is copied from another model year.

NHTSA record for 2012 Inferno

1 recall campaign filed with NHTSA names the Inferno for model year 2012:

  • 17V749000 (reported 21 Nov 2017): Equipment

No owner complaint filed with NHTSA names the Inferno for model year 2012. NHTSA files recalls and complaints by line and model year, not by floorplan, so a campaign listed here may not affect every Inferno floorplan; the recall notice says which units it covers.