01 What makes it unique
The Sundance Fifth Wheel 27MLOK leaves Heartland's factory at 8,555 lbs dry, with a published GVWR of 10,400 lbs and 1,845 lbs of cargo capacity between the two. Cargo capacity is 18% 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 52-gallon fresh tank spends 432 lbs of that 1,845 lbs before anything else is loaded.
Pin weight is 1,665 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 1,665 lbs over the bed. Read the payload figure on your own door sticker rather than a brochure maximum for the model.
Off hookups: 127 gallons of grey and black capacity against 52 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 2nd of 6 floorplans by dry weight, in a line that runs from 8,030 lbs to 13,235 lbs. It sits in the lighter third of the line.
Plan the tow on loaded weight, not the 8,555 lbs dry figure: half the published cargo capacity brings this plan to about 9,477 lbs, and the published GVWR of 10,400 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. 27MLOK is a Sundance Fifth Wheel designation and this site does not decode it into a layout claim.
How the 27MLOK differs from the other five Sundance Fifth Wheel floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2026). How these ranks are worked out.
- Pin weight as a share of dry weight, 19.5%: largest of six; next is the 28DB (19.2%).
- Sleeping capacity, 2: smallest of five; next are the 29RLCS and 32RLBS (4).
- Dry weight, 8,555 lb: second-lightest of six, between the 24ML (8,030 lb) and the 28DB (8,605 lb).
- Cargo capacity as a share of GVWR, 17.7%: second-largest of six, between the 29RLCS (15.8%) and the 32RLBS (17.9%).
- Length, 32 ft 9 in: second-shortest of six, between the 24ML (29 ft 3 in) and the 29RLCS (34 ft).
- GVWR, 10,400 lb: third-lowest of six, between the 28DB (9,995 lb) and the 29RLCS (11,600 lb).
- Cargo capacity, 1,845 lb: third-largest of six, between the 29RLCS (1,835 lb) and the 35MRBS (2,165 lb).
- Pin weight, 1,665 lb: third-lightest of six, between the 28DB (1,650 lb) and the 29RLCS (1,790 lb).
- Exterior height, 12 ft 3 in: shared with the 24ML and 29RLCS; of six, one lower and two taller, nearest the 28DB (12 ft 1 in) and the 32RLBS and 35MRBS (12 ft 7 in).
- Fresh tank, 52 gal: shared with the 24ML and 29RLCS; of six, one smaller and two larger, nearest the 28DB (51 gal) and the 32RLBS and 35MRBS (81 gal).
Next to the 24ML, the nearest lighter floorplan by dry weight, the 27MLOK is 525 lb heavier by dry weight, has a GVWR 900 lb higher, has 375 lb more cargo capacity, has a pin weight 160 lb heavier and is 3 ft 6 in longer; the two publish the same exterior height, fresh tank, grey tank and black tank.
Next to the 28DB, the nearest heavier floorplan by dry weight, the 27MLOK is 50 lb lighter by dry weight, has a GVWR 405 lb higher, has 455 lb more cargo capacity, has a pin weight 15 lb heavier, is 1 ft 10 in shorter, stands 2 in taller, has a fresh tank 1 gal larger and sleeps eight fewer; the two publish the same grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 32' 9"
- Exterior height
- 12' 3"
- Exterior width
- 8' 1"
Weights
- Dry / unit base weight (UVW)
- 8,555 lbs
- GVWR (max loaded)
- 10,400 lbs
- Net cargo / payload (CCC)
- 1,845 lbs
- Hitch / pin weight
- 1,665 lbs
Capacities
- Fresh water
- 52 gal
- Grey water
- 82 gal
- Black water
- 45 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Axles
- Published by Heartland; not carried in this capture
- Tires
- ST225/75R15'E'
Sleeping & layout
- Sleeps
- Up to 2
- Awnings
- 18'
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 ST225/75R15 in 2 tire recalls: 14T015000 (Dynamic Tire Corp., 2014; make TOWMAX STR; model ST); 17T014000 (Triangle Tire USA, 2017; make TRIANGLE; model TR643). 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
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
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 (10,400 lb) and the upper loaded pin estimate (2,600 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.
03 The Sundance Fifth Wheel floorplan family
These are Heartland's 2026 Sundance Fifth Wheel records for 24ML, 27MLOK and 28DB. All 3 are profiled, from 8,030 lb dry (24ML, 29' 3" long) to 8,605 lb dry (28DB, 34' 7" long), with published hitch weights of 1,505 to 1,665 lb. Dry weight plus cargo carrying capacity equals the published GVWR exactly on 3 of 3.
| Floorplan | Nominal | Dry weight (lb) | GVWR (lb) | Notable |
|---|---|---|---|---|
| 24ML | 29' 3" | 8,030 | 9,500 | Fifth Wheels |
| 27MLOK | 32' 9" | 8,555 | 10,400 | Fifth Wheels |
| 28DB | 34' 7" | 8,605 | 9,995 | Fifth Wheels |
Heartland's 2026 Sundance Fifth Wheel roster also lists 29RLCS and 35MRBS; those two floorplans are catalogued on their 2027 pages, which carry Heartland's current record for them.
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
8,030 lbs dry against this plan's 8,555 lbs, a difference of 525 lbs.
8,605 lbs dry, 50 lbs more than this plan, and 1,390 lbs of cargo capacity against this one's 1,845 lbs.
06 Loading it for a trip
A full 52-gallon fresh tank is about 432 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 23% of the 27MLOK’s 1,845 lb cargo capacity, leaving 1,413 lb (707 lb per rated berth). Across 6 Sundance Fifth Wheel floorplans the water share runs 23% to 31%, and this plan’s is the lowest. Nearest on that share: Sundance Fifth Wheel 29RLCS at 24%. 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 29RLCS, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 32 ft 9 in vs 34 ft 0 in; sleeps 2 vs 4; dry weight 8,555 lb vs 9,765 lb; GVWR 10,400 lb vs 11,600 lb; cargo capacity 1,845 lb vs 1,835 lb; hitch weight 1,665 lb vs 1,790 lb. They match on fresh tank, grey tank and black tank.
| Sundance Fifth Wheel plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 10,400 | 3 of 6 | 9,500–15,400 |
| Dry weight (lb) | 8,555 | 2 of 6 | 8,030–13,235 |
| Cargo capacity (lb) | 1,845 | 4 of 6 | 1,390–2,360 |
| Hitch weight (lb) | 1,665 | 3 of 6 | 1,505–2,530 |
| Length | 32 ft 9 in | 2 of 6 | 29 ft 3 in–42 ft 1 in |
| Fresh tank (gal) | 52 | 2–4 of 6 | 51–81 |
| Grey tank (gal) | 82 | 1–4 of 6 | 82–87 |
| Black tank (gal) | 45 | 1–4 of 6 | 45–50 |
| Sleeps | 2 | 1 of 6 | 2–10 |
Either side of it by GVWR: Sundance Fifth Wheel 28DB is 405 lb lighter (9,995 lb GVWR); Sundance Fifth Wheel 29RLCS is 1,200 lb heavier (11,600 lb GVWR).
| Nearest Sundance Fifth Wheel siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Sundance Fifth Wheel 27MLOK | 32 ft 9 in | 2 | 8,555 | 10,400 | 1,845 | 1,665 | 52 |
| Sundance Fifth Wheel 29RLCS | 34 ft 0 in | 4 | 9,765 | 11,600 | 1,835 | 1,790 | 52 |
| Sundance Fifth Wheel 24ML | 29 ft 3 in | 4 | 8,030 | 9,500 | 1,470 | 1,505 | 52 |
| Sundance Fifth Wheel 28DB | 34 ft 7 in | 10 | 8,605 | 9,995 | 1,390 | 1,650 | 51 |
| Sundance Fifth Wheel 32RLBS | 36 ft 7 in | 4 | 10,840 | 13,200 | 2,360 | 2,065 | 81 |
| Sundance Fifth Wheel 35MRBS | 42 ft 1 in | 8 | 13,235 | 15,400 | 2,165 | 2,530 | 81 |
All 6 Sundance Fifth Wheel floorplans: Sundance Fifth Wheel line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| 27MLOK | 10,400 | 8,555 | 2 | 32 ft 9 in |
| Eagle 27MLC | 10,400 | 8,625 | 2 | 32 ft 8 in |
| Roamer 27RKSS | 10,400 | 8,555 | 2 | 32 ft 9 in |
| Arctic Wolf 287BH | 10,395 | 8,368 | — | 35 ft 2 in |
| Durango Half-Ton D230RDD | 10,500 | 8,485 | 5 | 29 ft 0 in |
| Ridgeway R24ML | 10,500 | 7,900 | 3 | 28 ft 9 in |
| GSL Light Duty Fifth Wheel 304BHS | 10,600 | 8,825 | 8 | 33 ft 7 in |
Against the 27MLOK: the Arctic Wolf 287BH is 5 lb lighter and 2 ft longer.
08 Common questions about the 27MLOK
How much does the 27MLOK weigh?
8,555 lb dry; 10,400 lb GVWR, the most it may weigh loaded.
How much can the 27MLOK carry?
1,845 lb, 18% of its GVWR (median across 334 fifth wheels here: 18%). A full fresh tank uses 432 lb of it.
What is the pin weight of the 27MLOK?
1,665 lb as published, 19% of the dry weight (median across 540 fifth wheels here: 19%).
What size tow vehicle does the 27MLOK need?
A tow rating of at least 10,400 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the 27MLOK sleep?
It is rated to sleep up to 2. 5 of the 6 Sundance Fifth Wheel floorplans that publish a count sleep more.
What are the tank capacities on the 27MLOK?
Fresh 52, grey 82, black 45 gallons. Off hookups, fresh water runs out first.
How long is the 27MLOK?
32' 9" 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 27MLOK. 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.