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Fifth Wheel · Complete Roster Profiled · Single-Source Profile

2027 Heartland Sundance Fifth Wheel35MRBS

a 42-foot fifth wheel that leaves the factory at 13,235 lbs dry and is rated to carry 2,165 lbs of cargo.

Tow-Critical Data — as built, MY2027

13,235lb
Dry Weight
15,400lb
GVWR
2,530lb
Pin Weight
42ft
Length
2,165 lb cargo Fifth Wheel · Fifth Wheels Built by · Heartland Model year · 2027

01 What makes it unique

The Sundance Fifth Wheel 35MRBS leaves Heartland's factory at 13,235 lbs dry, with a published GVWR of 15,400 lbs and 2,165 lbs of cargo capacity between the two. Cargo capacity is 14% of the loaded rating, and cargo capacity is what remains for fresh water, gear, food, batteries and every dealer-installed accessory. Fresh water alone is 8.3 lb per gallon, so filling this trailer's 81-gallon fresh tank spends 672 lbs of that 2,165 lbs before anything else is loaded.

Pin weight is 2,530 lbs, which is 19% of the dry weight. That figure lands on the truck's rear axle and comes straight off its payload rating - not its towing rating, which is the number most often quoted and the wrong one for this decision. Pin weight rises as the trailer is loaded, and a fifth wheel loaded toward its cargo capacity will put substantially more than 2,530 lbs over the bed. Read the payload figure on your own door sticker rather than a brochure maximum for the model.

Off hookups: 137 gallons of grey and black capacity against 81 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Sundance Fifth Wheel roster this is the 6th of 6 floorplans by dry weight, in a line that runs from 8,030 lbs to 13,235 lbs. It is the heaviest plan in the line, so the tow vehicle should be settled before the floorplan is.

Plan the tow on loaded weight, not the 13,235 lbs dry figure: half the published cargo capacity brings this plan to about 14,317 lbs, and the published GVWR of 15,400 lbs is the limit (how to read trailer weights).

Every number above was read from Heartland's own factory page for this floorplan. It was read once, from that page only, so there is no second factory listing to check it against. Dry weight plus cargo capacity also equals the published GVWR exactly, which is the arithmetic check this site runs on every profiled floorplan. Where a figure is missing from this page the row says why: either Heartland does not print it on this floorplan's page, or this capture does not carry it.

This capture carries no floorplan description for this plan - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 35MRBS is a Sundance Fifth Wheel designation and this site does not decode it into a layout claim.

How the 35MRBS differs from the other five Sundance Fifth Wheel floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2027). How these ranks are worked out.

  • Dry weight, 13,235 lb: heaviest of six; next is the 32RLBS (10,840 lb).
  • GVWR, 15,400 lb: highest of six; next is the 32RLBS (13,200 lb).
  • Pin weight, 2,530 lb: heaviest of six; next is the 32RLBS (2,065 lb).
  • Length, 42 ft 1 in: longest of six; next is the 32RLBS (36 ft 7 in).
  • Cargo capacity, 2,165 lb: second-largest of six, between the 27MLOK (1,845 lb) and the 32RLBS (2,360 lb).
  • Cargo capacity as a share of GVWR, 14.1%: second-smallest of six, between the 28DB (13.9%) and the 24ML (15.5%).
  • Sleeping capacity, 8: second-largest of five, between the 29RLCS and 32RLBS (4) and the 28DB (10).
  • Pin weight as a share of dry weight, 19.1%: third-largest of six, between the 32RLBS (19%) and the 28DB (19.2%).
  • Exterior height, 12 ft 7 in: tallest of six, level with the 32RLBS; next are the 24ML, 27MLOK and 29RLCS (12 ft 3 in).
  • Fresh tank, 81 gal: largest of six, level with the 32RLBS; next are the 24ML, 27MLOK and 29RLCS (52 gal).
  • Grey tank, 87 gal: largest of six, level with the 32RLBS; next are the 24ML, 27MLOK and two others (82 gal).
  • Black tank, 50 gal: largest of six, level with the 32RLBS; next are the 24ML, 27MLOK and two others (45 gal).

Next to the 32RLBS, the nearest lighter floorplan by dry weight, the 35MRBS is 2,395 lb heavier by dry weight, has a GVWR 2,200 lb higher, has 195 lb less cargo capacity, has a pin weight 465 lb heavier, is 5 ft 6 in longer and sleeps four more; the two publish the same exterior height, fresh tank, grey tank and black tank.

02 Full specifications

Dimensions

Exterior length
42' 1"
Exterior height
12' 7"
Exterior width
8' 1"

Weights

Dry / unit base weight (UVW)
13,235 lbs
GVWR (max loaded)
15,400 lbs
Net cargo / payload (CCC)
2,165 lbs
Hitch / pin weight
2,530 lbs

Capacities

Fresh water
81 gal
Grey water
87 gal
Black water
50 gal

Running gear

Hitch type
Fifth wheel (pin box)
Axles
Published by Heartland; not carried in this capture
Tires
ST235/80R16'H'

Sleeping & layout

Sleeps
Up to 8
Awnings
21'

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.

Federal tire recalls naming this size. NHTSA’s recall file names ST235/80R16 in one tire recall: 21T018000 (Sailun Tire Americas, Inc., 2021; make SAILUN; models BLACKHAWK, BLACKLION, IRONHEAD, ROADX, SAILUN). A tire recall covers only the brands, lines and DOT date codes it lists, and this page does not know which brand of tire this trailer was built with, so read the brand and DOT code on your own sidewalls before relying on this list. Only 242 of NHTSA’s 788 tire recalls name a size in their summary, so a size with no match is not a clean record (NHTSA recall file, read 12 Oct 2026).

Drawn to scale

Weight budget

Loaded weight budget for the 35MRBSHorizontal bar. Dry weight 13,235 pounds, then cargo capacity 2,165 pounds, against a GVWR of 15,400 pounds. Pin weight 2,530 pounds on the same scale.GVWR 15,400 lbsDry 13,235 lbsCargo capacity 2,165 lbsPin weight 2,530 lbs — same scale

Size, with end view

Scale outline of the 35MRBSScale outline of the 35MRBS. Overall length 42' 1", overall height 12' 7", overall width 8' 1".end view8' 1"42' 1" overall length12' 7"

Holding tanks

Holding tank capacities for the 35MRBSHolding tank capacities: fresh 81 gallons, grey 87 gallons, black 50 gallons.Fresh81 galGrey87 galBlack50 gal

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

Towing it

Tow rating needed15,400 lb
Published pin weight2,530 lb
Loaded pin weight, rule of thumb2,530–3,850 lb
In-bed fifth-wheel hitch rating needed15,400 lb towed / 3,850 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 (15,400 lb) and the upper loaded pin estimate (3,850 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 figure, because loaded is never lighter than that.

Check this floorplan against your own vehicle’s numbers

03 The Sundance Fifth Wheel floorplan family

Sundance Fifth Wheel is Heartland's fifth-wheel roster under the Sundance name. Heartland publishes 3 floorplans for 2027 and all 3 are profiled here, from 9,765 lb dry (29RLCS, 34' 0" long) to 13,235 lb dry (35MRBS, 42' 1" long), with published hitch weights of 1,790 to 2,530 lb. Dry weight plus cargo carrying capacity equals the published GVWR exactly on 3 of 3.

FloorplanNominalDry weight (lb)GVWR (lb)Notable
29RLCS34' 0"9,76511,600Fifth Wheels
32RLBS36' 7"10,84013,200Fifth Wheels
35MRBS42' 1"13,23515,400Fifth Wheels

This hub catalogues three Heartland Sundance rosters read on 4 Nov 2026: Sundance Fifth Wheel for 2027 (3 floorplans), Sundance Fifth Wheel for 2026 (3 floorplans on this site) and Sundance travel trailers for 2027 (3 floorplans). 29RLCS and 35MRBS appear on both the 2026 and 2027 fifth-wheel rosters; their pages carry the 2027 record.

04 Notes on this floorplan

What this page does not carry

Heartland's Quick Specs pages also print axle count and MSRP; this capture does not carry them, so they are absent here rather than estimated. Sleeping capacity is shown as Heartland prints it, and tire size only where Heartland prints one. A tire size is a safety-relevant number that differs between two codes a digit apart, and this site does not guess one.

Weigh it before you tow it

Every figure on this page is a factory publication for a standard build. Heartland's pages note that actual floor plans, features and finishes may vary, and options, dealer-installed accessories and the previous owner's additions all move a trailer's weight. The only weight that governs your towing decision is the one under your own trailer on a scale, loaded the way you actually travel.

05 How it compares

Lighter
Sundance Fifth Wheel 32RLBS

10,840 lbs dry against this plan's 13,235 lbs, a difference of 2,395 lbs.

Most cargo in the line
Sundance Fifth Wheel 32RLBS

2,360 lbs of cargo capacity, the highest of the 6 Sundance Fifth Wheel floorplans profiled here. If payload rather than length is the binding constraint, that is the plan to compare against.

06 Loading it for a trip

A full 81-gallon fresh tank is about 672 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 31% of the 35MRBS’s 2,165 lb cargo capacity, leaving 1,493 lb (187 lb per rated berth). Across 6 Sundance Fifth Wheel floorplans the water share runs 23% to 31%, and this plan’s is the highest. Nearest on that share: Sundance Fifth Wheel 28DB at 30%. 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 Sundance Fifth Wheel 32RLBS, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 42 ft 1 in vs 36 ft 7 in; sleeps 8 vs 4; dry weight 13,235 lb vs 10,840 lb; GVWR 15,400 lb vs 13,200 lb; cargo capacity 2,165 lb vs 2,360 lb; hitch weight 2,530 lb vs 2,065 lb. They match on fresh tank, grey tank and black tank.

Sundance Fifth Wheel plansThis planPosition, low to highRange
GVWR (lb)15,4006 of 69,500–15,400
Dry weight (lb)13,2356 of 68,030–13,235
Cargo capacity (lb)2,1655 of 61,390–2,360
Hitch weight (lb)2,5306 of 61,505–2,530
Length42 ft 1 in6 of 629 ft 3 in–42 ft 1 in
Fresh tank (gal)815–6 of 651–81
Grey tank (gal)875–6 of 682–87
Black tank (gal)505–6 of 645–50
Sleeps85 of 62–10

Either side of it by GVWR: Sundance Fifth Wheel 32RLBS is 2,200 lb lighter (13,200 lb GVWR).

Nearest Sundance Fifth Wheel siblingsLengthSleepsDry (lb)GVWR (lb)CCC (lb)Hitch (lb)Fresh (gal)
Sundance Fifth Wheel 35MRBS42 ft 1 in813,23515,4002,1652,53081
Sundance Fifth Wheel 32RLBS36 ft 7 in410,84013,2002,3602,06581
Sundance Fifth Wheel 29RLCS34 ft 0 in49,76511,6001,8351,79052
Sundance Fifth Wheel 28DB34 ft 7 in108,6059,9951,3901,65051
Sundance Fifth Wheel 27MLOK32 ft 9 in28,55510,4001,8451,66552
Sundance Fifth Wheel 24ML29 ft 3 in48,0309,5001,4701,50552

All 6 Sundance Fifth Wheel floorplans: Sundance Fifth Wheel line hub.

Other lines, nearest by GVWRGVWR (lb)Dry (lb)SleepsLength
35MRBS15,40013,235842 ft 1 in
Eagle 355MBQS15,40012,7758—
Roamer 35MRQS15,40013,125842 ft 1 in
Sandpiper 3990FL15,37512,439843 ft 6 in
Sierra 3990FL15,37512,439—43 ft 6 in
Cherokee Arctic Wolf 38DST15,46512,718—43 ft 6 in
Model Z 310015,49512,276—34 ft 11 in

Against the 35MRBS: the Sandpiper 3990FL is 25 lb lighter and 1 ft longer.

08 Common questions about the 35MRBS

How much does the 35MRBS weigh?

13,235 lb dry; 15,400 lb GVWR, the most it may weigh loaded.

How much can the 35MRBS carry?

2,165 lb, 14% of its GVWR (median across 334 fifth wheels here: 18%). A full fresh tank uses 672 lb of it.

What is the pin weight of the 35MRBS?

2,530 lb as published, 19% of the dry weight (median across 540 fifth wheels here: 19%).

What size tow vehicle does the 35MRBS need?

A tow rating of at least 15,400 lb, plus payload for the loaded pin weight, passengers and cargo.

How many people does the 35MRBS sleep?

It is rated to sleep up to 8. 1 of the 6 Sundance Fifth Wheel floorplans that publish a count sleep more.

What are the tank capacities on the 35MRBS?

Fresh 81, grey 87, black 50 gallons. Off hookups, fresh water runs out first.

How long is the 35MRBS?

42' 1" overall, tongue or pin box included.

From the figures above.

09 What this page publishes, and what it does not

13 of the 18 fields this catalogue tracks are published for the 35MRBS. Not published: interior height, slide count, axle count, refrigerator, air conditioning.

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 18 recall campaigns and 19 owner complaints (model years 2005 on) against the Sundance Fifth Wheel line (a recall and a complaint are not the same thing).

What to look at on a used one. Across the 19 complaints filed on this line the most-reported components are tires (53%), wheels (16%) and unknown or other (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 Sundance Fifth Wheel line page.