01 What makes it unique
The 37BEST is Wildcat’s flagship bunkhouse and the heaviest, longest, highest-GVWR coach in the line. It pairs a front king bedroom with bunk beds, a kitchen island and a full bath-and-a-half, opened by four slide-outs with dual entry doors, sleeping up to ten. At about 12,698 pounds dry on a 15,498-pound GVWR it is the most coach in the line. It rides the full Wildcat build: a 2-inch vacuum-bonded aluminum-framed sidewall structure, a one-piece molded fiberglass front cap, a PVC roof membrane with a lifetime warranty, a heated and enclosed underbelly with 12-volt tank heat pads and sectioned ABS armor, and 4-point automatic leveling.
Forest River publishes a 12,698-pound UVW, a 2,800-pound CCC and a 15,498-pound GVWR (the published GVWR equals UVW plus CCC exactly, the highest in the line), against a 2,210-pound dry pin. It carries the line’s larger 76-gallon grey and black tanks (matched to its bath-and-a-half). A 45,000-BTU three-air-conditioner system, a 35,000-BTU furnace, a 5,000-BTU electric fireplace, a 60,000-BTU tankless water heater, a 16-cubic-foot 12-volt refrigerator, a 21-inch 2-in-1 oven range, a 30-inch over-the-range microwave and a 60-gallon fresh tank are standard, under a 15-foot power awning with a 200-watt rooftop solar prep.
US street pricing has commonly run in the mid-to-high $60,000s and into the $70,000s. It is the flagship, do-everything bunkhouse Wildcat. For a family that wants a front king bedroom, bunk beds, a kitchen island and a full bath-and-a-half with dual entry doors — sleeping up to ten in the heaviest, longest, highest-GVWR coach in the line, towed behind a properly rated three-quarter-ton or larger truck — the 37BEST is the line’s flagship plan. It is sold as the Cardinal 37BEST under a sister badge.
02 Full specifications
Dimensions
- Exterior length
- 43' 7"
- Exterior width
- 8' 0"
- Exterior height
- 13' 4"
- Interior height
- 6' 5"
Weights
- Dry / unit base weight (UVW)
- 12,698 lbs
- GVWR (max loaded)
- 15,498 lbs
- Net cargo / payload (CCC)
- 2,800 lbs
- Dry pin (hitch) weight
- 2,210 lbs
Capacities
- Fresh water
- 60 gal
- Grey water
- 76 gal
- Black water
- 76 gal
- Refrigerator
- 16 cu ft 12V
Construction
- Frame
- 2" vacuum-bonded aluminum-framed sidewalls · high-density block-foam insulation · welded aluminum structure
- Walls
- Laminated aluminum-framed walls · one-piece molded fiberglass front cap · residential fiberglass roof & floor insulation
- Roof
- PVC roof membrane (lifetime warranty) · 5" arched roof rafters · 6′ 5" upper-deck height
- Underbelly
- Heated & enclosed underbelly · 12V tank heat pads · sectioned ABS underbelly armor · 5/8" T&G plywood floor
Running gear
- Axles
- 2 (tandem) · per-axle GAWR not separately published *
- Hitch
- Fifth-wheel (in-bed) · 4-point automatic leveling · 200W rooftop solar prep
- Brakes
- Electric · self-adjusting · 50-amp service
- Tires
- Aluminum wheels · outside shower · dual 20-lb LP
Galley & bath
- Cooktop
- 21" 2-in-1 oven range · 30" OTR microwave · 60K tankless water heater
- Refrigerator
- 16 cu ft 12V
- A/C
- 45,000 BTU 3-A/C system
- Water heater
- 60,000-BTU tankless · on-demand
Sleeping & layout
- Sleeps
- 10
- Slides
- 4
- Entries
- 2
- Awnings
- 1 (15')
- Primary bed
- King 66×80
Verified specs, drawn to scale
Original graphics built from this floorplan’s own verified figures.
Loaded weight budget
Size, drawn to scale
Holding tanks
Drawn by this site from the verified figures above, never traced from a manufacturer drawing; a graphic is left out where its figure is not published. Full record: dataset.
What it takes to tow this
Built from this floorplan’s verified weights. We publish the trailer side only.
Truck tow ratings are not listed: one model varies by thousands of pounds across engine, axle ratio, cab and package. The loaded range is the 15–25% pin-weight convention for fifth wheels, applied to this plan’s 15,498 lb GVWR, not a measurement of this unit. Hitch class is not used as a rating (SAE J684 covers trailers to 10,000 lb GVWR); read the rating stamped on your hitch.
03 The Wildcat floorplan family
Wildcat is Forest River's mid-profile affordable-luxury fifth wheel — a step above the brand's own value-mid Arctic Wolf and a step below its premium-mainstream Sandpiper. Six of the most distinct 2026 floorplans are profiled here in full. The 37BEST on this page is highlighted; each other plan links to its own page.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| 32LIVE | 36 ft | 4 | Rear living + kitchen island + front bedroom, lightest and shortest, lowest GVWR |
| 33CHEF | 38 ft | 4 | Rear kitchen + front bedroom, couples who cook and work remote, lowest pin |
| 402BEDS | 42 ft | 8 | Two queen bedrooms + two full baths, dual entry, unique family plan |
| 36MB | 43 ft | 10 | Mid-bunk + loft family plan, fireplace, longest awning, highest pin |
| 35CRIB | 43 ft | 8 | Rear bunkhouse + front queen + two full baths, tallest in the line |
| 36FUN | 43 ft | 8 | Rear king master + front bunkhouse suite + two full baths, dual entry |
| 37GALLEY | 43 ft | 6 | Front kitchen + king suite + bath-and-a-half, galley-and-entertainment |
| 37PUB | 43 ft | 4 | Front living + kitchen island + bath-and-a-half, the front-living sibling |
| 35FL | 43 ft | 6 | Front entertainment/living + rear bedroom, biggest cargo capacity, four slides |
| 37BEST | 44 ft | 10 | Bunk beds + bath-and-a-half + dual entry, heaviest, longest, highest GVWR |
Wildcat is Forest River's mid-profile affordable-luxury fifth wheel — a step above the brand's own value-mid Arctic Wolf and a step below its premium-mainstream Sandpiper. Ten of the most distinct 2026 retail floorplans are profiled here in full; only two Dealer Stock Only plans (34CRIB, 35FUN) are listed on the hub but not profiled. Every plan is built on a 2-inch vacuum-bonded aluminum-framed sidewall structure with a one-piece molded fiberglass front cap, a PVC roof membrane with a lifetime warranty, residential fiberglass roof and floor insulation, a heated and enclosed underbelly with 12-volt tank heat pads and sectioned ABS armor, seamless roto-cast holding tanks, 4-point automatic leveling, a 50-amp service, a 35,000-BTU furnace, an 18,000-BTU ducted air conditioner (a 45,000-BTU three-A/C system is standard on most plans), a 60,000-BTU tankless water heater, a 16-cubic-foot 12-volt refrigerator, a 5,000-BTU electric fireplace, a 60-gallon fresh tank line-wide and a 200-watt rooftop solar prep. Hitch weight, UVW, CCC and GVWR are published per plan; the published GVWR equals UVW plus CCC exactly on every profiled plan. The numeric per-axle GAWR is not separately published for Wildcat. UVW is a factory estimated average; real loaded pin weights run higher — always weigh the loaded coach and confirm against your truck's payload and rear-axle ratings. Wildcat is badge-engineered as the Cardinal under a sister badge.
04 Notes on this floorplan
Heaviest, longest, highest-GVWR coach in the line
At about 12,698 lb dry on a 15,498-lb GVWR and 43 feet 7 inches it is the most coach in the line — confirm your truck’s payload and rear-axle rating against the loaded pin.
Front king + bunks + bath-and-a-half
A front king bedroom, bunk beds, a kitchen island and a full bath-and-a-half with dual entry doors — a do-everything family flagship.
Larger grey and black tanks
A 76-gallon grey and 76-gallon black tank (versus 38 on most plans) matched to the bath-and-a-half — a real water-and-waste budget for a full household.
Slide count conflict logged
Several dealer listings describe the 37BEST as having "five slides" plus a "coffee bar"; the factory floorplan shows four slide-outs (dealers most likely count the king bed slide separately). This page uses the factory four-slide count; confirm the slide configuration on the specific unit.
05 How it compares
The two-bedroom alternative — two queen bedrooms and two full baths instead of a bunkhouse and a bath-and-a-half, also dual entry.
The lighter mid-bunk family plan — bunk beds and a loft on a lower GVWR than the flagship bunkhouse.
Forest River’s premium-mainstream full-size fifth wheel a tier above — a richer construction and equipment package at a higher price.
06 Loading it for a trip
This floorplan carries its water comfortably. A full 60-gallon fresh tank is roughly 18% of the 2,800-pound cargo capacity, leaving the 37BEST with a usable gear budget even when you tow full.
| Weight budget | Figure | What it means |
|---|---|---|
| Cargo capacity as published (CCC) | 2,800 lb | Everything you add: gear, water, propane, batteries, food, people’s belongings. |
| Fresh tank filled (60 gal × 8.34 lb) | −500 lb | Water is the heaviest thing most owners add, and it is added first. |
| Cargo budget left with a full fresh tank | 2,300 lb | 18% of this plan’s capacity is spent before a single bag is loaded. |
| Per sleeping position, water aboard | 230 lb | A rough share of what is left across the 10 berths this plan sleeps. |
The published dry pin weight of 2,210 pounds is 17% of this floorplan’s 12,698-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.
Nothing above changes the ceiling. Loaded to its 15,498-pound GVWR the 37BEST is towing 2,800 pounds more than its 12,698-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.
Tank balance is generous here: 60 gallons of fresh against 76 grey and 76 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.
07 Where this floorplan sits
Of the 26 Wildcat floorplans profiled here, the 37BEST carries the highest GVWR at 15,498 pounds. It is the top of the line by weight, which makes tow-vehicle capability the first thing to settle rather than the last.
Either side of it in the same line: Wildcat 402BEDS is 698 pounds lighter at 14,800 lb GVWR.
| Comparable fifth wheels | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 37BEST | 15,498 | 12,698 | 10 | 43 ft 7 in |
| Sandpiper 3710HBFB | 15,500 | 12,649 | 7 | 42 ft 9 in |
| Sierra 3710HBFB | 15,500 | 12,649 | — | 42 ft 9 in |
| Model Z 3100 | 15,495 | 12,276 | 7 | 34 ft 11 in |
| Eagle 355MBQS | 15,400 | 12,775 | 8 | — |
| Roamer 35MRQS | 15,400 | 13,125 | — | 42 ft 1 in |
| Sandstorm 2800 | 15,719 | 10,419 | — | 32 ft 3 in |
Against the 37BEST: the Sandpiper 3710HBFB is 2 lb heavier and sleeps 3 fewer; the Sierra 3710HBFB is 2 lb heavier; the Model Z 3100 is 3 lb lighter and 9 ft shorter and sleeps 3 fewer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.
Those are the nearest fifth wheels from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.
For scale, the Wildcat floorplans profiled here run 3,489 to 12,698 pounds dry and 23 to 44 feet of exterior length across 26 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.
Every profiled floorplan in this line, with the full weight table, is on the Wildcat line hub.
08 Common questions about the 37BEST
How much does the 37BEST weigh?
Its published dry weight is 12,698 lb and its GVWR is 15,498 lb, so 2,800 lb separates the empty trailer from its rated maximum. By GVWR it is the heaviest of the 26 Wildcat floorplans profiled here that publish a GVWR (4,759 lb to 15,498 lb). Size the tow vehicle to the 15,498 lb figure, not the dry one.
How much can the 37BEST carry?
Cargo carrying capacity is 2,800 lb, 18% of the GVWR. Across the 307 fifth wheels on this site that publish both figures, the median share is 19%, so this plan sits close to the median. A full 60-gallon fresh tank is about 500 lb of it (18%), because federal rule counts on-board water as cargo (49 CFR 571.120 S10.4.2). The yellow cargo-capacity label inside your own trailer’s entry door (49 CFR 571.120 S10.4.3) states the figure for that unit as delivered, options included, and it is the one that binds.
What is the pin weight of the 37BEST?
The published dry pin weight is 2,210 lb, 17% of the dry weight. Across the 386 fifth wheels on this site that publish both figures, the median dry pin share is 19%, so this plan sits 1 point below the median. Loaded, it changes with where the cargo sits, and it is carried by the tow vehicle’s payload, not its tow rating.
What size tow vehicle does the 37BEST need?
A tow rating of at least 15,498 lb, this floorplan’s GVWR, plus enough payload for the pin load, passengers and cargo. The dry pin weight alone takes 2,210 lb of that payload before anything is loaded. Payload is printed on the tire and loading placard on the tow vehicle’s driver-side door pillar (49 CFR 571.110 S4.3); this site lists no truck ratings because they vary by build.
How many people does the 37BEST sleep?
It is rated to sleep 10. No other Wildcat floorplan profiled here is rated for more (10 publish a count). Rated positions include convertible furniture.
What are the tank capacities on the 37BEST?
Fresh 60 gallons, grey 76 gallons, black 76 gallons. The smallest of the three is the fresh tank, at 60 gallons. Combined waste capacity is 152 gallons.
How long is the 37BEST?
Exterior length is 43' 7". That makes it the longest of the 26 Wildcat floorplans profiled here that publish an exterior length (22 ft 7 in to 43 ft 7 in). Check it against campsite and storage length; the exterior figure includes the tongue or pin box.
Every figure in these answers is read from this page’s verified specification table. Where the manufacturer publishes nothing, the question is not answered rather than estimated.
09 What this page publishes, and what it does not
Named sources publish 18 of the 18 specification fields this catalogue tracks for the 37BEST (94% complete on the full field set).
Not published for this floorplan: tire size (a tire description is published, a size is not). Those rows are left blank rather than copied from a sibling floorplan.
Values marked with an asterisk are arithmetic on published figures or come from a single source; the flag travels into the downloadable spec sheet.
Sourcing rules: methodology.
11 NHTSA safety record
This floorplan belongs to the Wildcat line, and NHTSA holds 20 recall campaigns and 56 owner complaints against that line. They are separate records and are not added together — a recall is a manufacturer-confirmed defect with a remedy; a complaint is one owner’s account, which NHTSA does not verify.
What to look at on a used one. Across the 56 complaints filed on this line the most-reported components are tires (27%), structure (18%) and wheels (18%). That is where owners of this family have had trouble, so it is where an inspection is worth the time.
Recall coverage is not complete — our harvest of NHTSA’s recall API ran 1,556 queries, of which 0 failed and 242 returned an explicit zero. A line can still be under-reported where NHTSA files a roster under a parent name, or where a match rests on the wording of the recall rather than its model field. Complaints come from the complete bulk file but are unverified and self-selected: a high count tracks how many units a line sold at least as much as how well it was built. Check a specific VIN at NHTSA before you buy. Full tables are on the Wildcat line page.