01 What makes it unique
The 3914 is the biggest Cyclone Heartland builds: forty-six feet eleven inches overall on a forty-five-foot-eight box, sleeping eight on three 7,000-pound axles. It shares the 3913's 21,000-pound GVWR and its full mandatory package content — the 30-gallon locking fuel tank with enclosed pump and timer, the 3-season locking garage wall, 5,000-pound breaking-load garage D-rings mounted to the steel frame, HappiJac electric-lift queen beds with convertible sofas, a rear loft ladder, three Soft Start air conditioning units, the 17-cubic-foot 12-volt black glass refrigerator and 106 gallons of fresh water.
The comparison against the 3913 is where this plan gets interesting, because it is not simply bigger. Six inches more length costs 535 pounds of cargo capacity — 5,030 against 5,565 — and adds 185 pounds to the pin, at 3,430 pounds against 3,245, for the same 21,000-pound GVWR and about 750 dollars more. The dry weight is 535 pounds higher, which is exactly where the cargo capacity went. If the extra six inches buys you the layout you want, the trade is fine; if it does not, the 3913 carries more for less.
02 Full specifications
Dimensions
- Exterior length (overall)
- 46 ft 11 in
- Exterior length (box)
- 45 ft 8 in
- Exterior width
- 8 ft 6 in
- Width, slides out
- 14 ft 6 in
- Exterior height
- 12 ft 7 in
- Exterior height (w/ A/C)
- 13 ft 2 in
- Interior height (main)
- 8 ft 3 in
- Interior height (bedroom)
- 6 ft 4 in
Weights
- Dry / unit base weight
- 15,970 lbs
- GVWR (max loaded)
- 21,000 lbs
- Net cargo / payload (CCC)
- 5,030 lbs
- Dry pin weight
- 3,430 lbs
Capacities
- Fresh water
- 106 gal
- Grey water
- 82 gal
- Black water
- 82 gal
- LP gas
- 60 lbs
Construction
- Body
- Fifth-wheel toy hauler · three high-efficiency A/C units
- Garage floor
- Tuff-Ply® rubberized liner
- Garage wall
- 3-season locking garage wall
- Ramp door
- Lift-assisted, weatherproof anti-skid
- Patio
- Powder-coated aluminum patio kit w/ gate and entry steps
Running gear
- Hitch
- Fifth-wheel (in-bed)
- Axles
- 3 x 7,000
- Tires
- ST215/75R17.5′H′
Garage
- Garage tie-points
- 5,000 lb. minimum breaking-load garage D-rings mounted to the steel frame
- Garage length
- Not published by source
- Fuel station
- 30 gal · mandatory Ramp and Cargo Equipment package
- Beds / sofas
- HappiJac® electric-lift queen beds w/ convertible sofas
- Ramp lighting
- LED high-intensity ramp lighting
Galley & systems
- Air conditioning
- 3 high-efficiency Soft Start A/C units · mandatory Camping in Comfort package
- Furnace
- 35,000 BTU
- Water heater
- Tankless · 60,000 BTU on-demand (mandatory package)
Sleeping & layout
- Sleeps
- 8
- Slides
- Not published by source
- Awning
- 21 ft
- Hitch type
- Fifth-wheel (in-bed)
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
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 Cyclone floorplan family
Heartland publishes Cyclone as two separate lines that share no floorplan codes: the Cyclone fifth wheel and the Cyclone travel trailer. Both carry the same mandatory Ramp and Cargo Equipment package — a 30-gallon fuel tank with a locking enclosed pump and timer, garage D-rings and a Tuff-Ply rubberized floor liner — and both publish their weights completely, which is rarer than it should be. The 3914 on this page is highlighted; each profiled plan links to its own page. Heartland does not publish a garage length for any Cyclone, so that column is absent from this catalog rather than estimated.
| Floorplan | Type | Length | GVWR | Sleeps | Notable |
|---|---|---|---|---|---|
| 2214 | TT | 28 ft 1 in | 11,700 | 4 | Entry Cyclone — the smallest and cheapest in the family |
| 2615 | TT | 34 ft 8 in | 13,250 | 4 | The larger trailer — most payload of the two, no published price |
| 3511 | 5W | 41 ft 2 in | 17,800 | 6 | Entry fifth wheel — the lightest pin of the three |
| 3913 | 5W | 46 ft 5 in | 21,000 | 8 | Most cargo capacity in the family — 5,565 lbs, sleeps eight |
| 3914 | 5W | 46 ft 11 in | 21,000 | 8 | The longest Cyclone — sleeps eight, heaviest pin |
| 2816 | TT | — | — | 4 | Catalogued — the factory publishes no weights for this plan |
The Cyclone fifth wheel is Heartland's premium toy hauler, and it is unusual among the lines in this catalog for how completely it publishes its weights: GVWR, dry weight, hitch weight and cargo carrying capacity are all given per plan, and dry plus cargo equals GVWR exactly on every plan that has weights. Nothing on these pages is derived. Heartland does not publish a garage length for any Cyclone, so no garage dimension appears here. Pin weights are factory dry figures and a loaded toy hauler's real pin runs well above them.
04 Notes on this floorplan
Heaviest pin in the family
3,430 pounds dry — 470 more than the entry 3511. Confirm your truck's rear-axle rating with the garage loaded, not empty.
535 pounds less cargo than the 3913
Same 21,000-pound GVWR, six inches longer, 535 pounds heavier dry — and the cargo capacity drops by exactly that. The dry weight is where it went.
Published, not derived
15,970 dry plus 5,030 cargo equals the 21,000-pound GVWR exactly.
No garage length
Heartland publishes no garage dimension for any Cyclone floorplan. Omitted rather than estimated.
05 How it compares
Six inches shorter, 535 more pounds of cargo capacity and a lighter pin, for about 750 dollars less.
Grand Design's flagship family plan — sleeps nine on a 23,500-pound GVWR with a published seventeen-foot garage, at about fifty thousand dollars more.
Six feet shorter on a 17,800-pound GVWR, sleeping six, with the lightest pin of the three.
06 Loading it for a trip
A full 106-gallon fresh tank is about 884 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 18% of the 3914’s 5,030 lb cargo capacity, leaving 4,146 lb (518 lb per rated berth). Across 3 Cyclone fifth-wheel floorplans the water share runs 16% to 23%, and 1 gives up more than this one. Nearest on that share: Cyclone 3913 at 16% and Cyclone 3511 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 Cyclone 3913, nearest on the published figures. It differs on 4 of the 9 fields both publish (this plan first): length 46 ft 11 in vs 46 ft 5 in; dry weight 15,970 lb vs 15,435 lb; cargo capacity 5,030 lb vs 5,565 lb; dry hitch weight 3,430 lb vs 3,245 lb. They match on sleeps, GVWR, fresh tank, grey tank and black tank.
| Cyclone fifth-wheel plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 21,000 | 2–3 of 3 | 17,800–21,000 |
| Dry weight (lb) | 15,970 | 3 of 3 | 13,875–15,970 |
| Cargo capacity (lb) | 5,030 | 2 of 3 | 3,925–5,565 |
| Dry hitch weight (lb) | 3,430 | 3 of 3 | 2,960–3,430 |
| Length | 46 ft 11 in | 3 of 3 | 41 ft 2 in–46 ft 11 in |
| Sleeps | 8 | 2–3 of 3 | 6–8 |
Either side of it by GVWR: Cyclone 3913 matches it at 21,000 lb GVWR.
| Nearest Cyclone fifth-wheel siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Cyclone 3914 | 46 ft 11 in | 8 | 15,970 | 21,000 | 5,030 | 3,430 | 106 |
| Cyclone 3913 | 46 ft 5 in | 8 | 15,435 | 21,000 | 5,565 | 3,245 | 106 |
| Cyclone 3511 | 41 ft 2 in | 6 | 13,875 | 17,800 | 3,925 | 2,960 | 106 |
All 5 Cyclone floorplans: Cyclone line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 3914 | 21,000 | 15,970 | 8 | 46 ft 11 in |
| Nightfall 397NHD | 21,000 | 15,674 | — | 45 ft 0 in |
| Sandstorm 4017GX | 21,000 | 15,674 | — | 45 ft 0 in |
| Seismic 395 | 21,000 | 16,075 | 7 | — |
| Model G 3250 | 22,000 | 17,300 | 6 | 37 ft 11 in |
| Momentum 394G | 22,500 | 16,400 | 7 | 44 ft 11 in |
| Influence 3804DS | 19,000 | 14,603 | 6 | 42 ft 6 in |
Against the 3914: the Nightfall 397NHD is 2 ft shorter; the Sandstorm 4017GX is 2 ft shorter; the Seismic 395 sleeps 1 fewer.
08 Common questions about the 3914
How much does the 3914 weigh?
15,970 lb dry; 21,000 lb GVWR, the most it may weigh loaded.
How much can the 3914 carry?
5,030 lb, 24% of its GVWR (median across 307 fifth wheels here: 19%). A full fresh tank uses 884 lb of it.
What is the pin weight of the 3914?
3,430 lb dry, 21% of the dry weight (median across 386 fifth wheels here: 19%).
What size tow vehicle does the 3914 need?
A tow rating of at least 21,000 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the 3914 sleep?
It is rated to sleep 8. No other Cyclone fifth-wheel floorplan here is rated for more.
What are the tank capacities on the 3914?
Fresh 106, grey 82, black 82 gallons. Off hookups, fresh water runs out first.
How long is the 3914?
46 ft 11 in overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
16 of the 18 fields this catalogue tracks are published for the 3914. Not published: slide count, refrigerator.
Sourcing rules: methodology.
10 Manuals & documents
Sources: heartlandrvs.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 17 recall campaigns and 65 owner complaints against the Cyclone line. They are counted separately: a recall is a confirmed defect with a remedy, a complaint one owner’s unverified account.
What to look at on a used one. Across the 65 complaints filed on this line the most-reported components are tires (45%), wheels (25%) and structure (11%).
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 Cyclone line page.