01 What makes it unique
Heartland lists the 2027 Milestone 36RK at 13,660 lb dry, a GVWR of 16,000 lb, a net carrying capacity of 2,340 lb and a pin weight of 2,580 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 40' 1" long and 13′ 4" high. Heartland prints its tanks as 75 gal fresh, 87 gal grey, 50 gal black.
Every number on this page was read on 8 Nov 2026 from Heartland’s own 2027 Milestone model page for the Milestone 36RK, whose heading names the model year 2027.
How the 36RK differs from the other eight Milestone floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2027). How these ranks are worked out.
- Sleeping capacity, 2: smallest of three; next are the 37MB and 39TB (8).
- Cargo capacity, 2,340 lb: second-smallest of three, between the 39TB (1,229 lb) and the 37MB (2,770 lb).
- Dry weight, 13,660 lb: third-heaviest of nine, between the 380DSL (12,865 lb) and the 37MB (15,130 lb).
- GVWR, 16,000 lb: third-highest of nine, between the 370FLMB (15,500 lb) and the 39TB (17,700 lb).
- Pin weight as a share of dry weight, 18.9%: third-smallest of nine, between the 39TB (18.3%) and the 37MB (19.3%).
- Length, 40 ft 1 in: third-shortest of nine, between the 321FL (38 ft 4 in) and the 377MB (42 ft 11 in).
- Pin weight, 2,580 lb: fifth-lightest of nine, between the 377MB (2,528 lb) and the 370FLMB (2,675 lb).
- Exterior height, 13 ft 4 in: shared with the 321FL and 333MB; of nine, four lower and two taller, nearest the 370FLMB, 37MB and two others (13 ft 3 in) and the 377MB and 39TB (13 ft 6 in).
Next to the 380DSL (2024 page), the nearest lighter floorplan by dry weight, the 36RK is 795 lb heavier by dry weight, has a GVWR 1,000 lb higher, has a pin weight 595 lb lighter, is 3 ft 3 in shorter and stands 1 in taller.
Next to the 37MB, the nearest heavier floorplan by dry weight, the 36RK is 1,470 lb lighter by dry weight, has a GVWR 1,900 lb lower, has 430 lb less cargo capacity, has a pin weight 340 lb lighter, is 3 ft 7 in shorter, stands 1 in taller and sleeps six fewer; the two publish the same fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 40' 1"
- Exterior height
- 13′ 4"
- Exterior width
- 8' 6"
- Interior height
- Not published by Heartland
Weights
- Dry / unit base weight (UVW)
- 13,660 lb
- GVWR (max loaded)
- 16,000 lb
- Net cargo / payload (CCC)
- 2,340 lb
- Hitch / pin weight
- 2,580 lb
Capacities
- Fresh water
- 75 gal
- Grey water
- 87 gal
- Black water
- 50 gal
Running gear
- Hitch type
- Fifth wheel (pin box)
- Tire size
- Not published by Heartland
Sleeping & layout
- Sleeps
- Up to 2
- Model year (as printed)
- spec-table “Year” row 2027; page title “36RK - 2027 - Milestone - Heartland RV”
- Axles
- 2 x 8,000
- LP Tank Capacity
- 60 lbs
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
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 (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). The range starts at the published figure, because loaded is never lighter than that.
03 The Milestone floorplan family
The Milestone floorplans below were added from Heartland’s 2027 Milestone model page; every Milestone floorplan on this site, every model year, is listed on the Milestone hub.
| Floorplan | Nominal | Sleeps |
|---|---|---|
| Milestone 36RK | 40' 1" | Up to 2 |
| Milestone 37MB | 43' 8" | Up to 8 |
| Milestone 39TB | 43' 6" | Up to 8 |
The Milestone floorplans below were added from Heartland’s 2027 Milestone model page; every Milestone floorplan on this site, every model year, is listed on the Milestone hub.
04 Notes on this floorplan
What Heartland does not publish for the Milestone 36RK
Heartland prints no tire size and interior height 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
The weight label every RV trailer carries by law (49 CFR 571.110 and 571.120) governs the towing decision, not this page.
05 How it compares
15,130 lb dry and 17,900 lb GVWR, against this model’s 13,660 lb and 16,000 lb.
06 Loading it for a trip
A full 75-gallon fresh tank is about 622 lb of water (water counts as cargo: 49 CFR 571.120 S10.4.2), 27% of the Milestone 36RK’s 2,340 lb cargo capacity, leaving 1,718 lb (859 lb per rated berth). Across 3 Milestone floorplans the water share runs 22% to 51%, and 1 gives up more than this one. Nearest on that share: Milestone 37MB at 22% and Milestone 39TB at 51%. 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 Milestone 37MB, nearest on the published figures. It differs on 6 of the 9 fields both publish (this plan first): length 40 ft 1 in vs 43 ft 8 in; sleeps 2 vs 8; dry weight 13,660 lb vs 15,130 lb; GVWR 16,000 lb vs 17,900 lb; cargo capacity 2,340 lb vs 2,770 lb; hitch weight 2,580 lb vs 2,920 lb. They match on fresh tank, grey tank and black tank.
| Milestone plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 16,000 | 7 of 9 | 15,000–17,900 |
| Dry weight (lb) | 13,660 | 7 of 9 | 10,845–15,375 |
| Cargo capacity (lb) | 2,340 | 2 of 3 | 1,229–2,770 |
| Hitch weight (lb) | 2,580 | 5 of 9 | 2,225–3,175 |
| Length | 40 ft 1 in | 3 of 9 | 37 ft 10 in–44 ft 2 in |
| Grey tank (gal) | 87 | 1–2 of 3 | 87–137 |
| Black tank (gal) | 50 | 1–2 of 3 | 50–100 |
| Sleeps | 2 | 1 of 9 | 2–8 |
Either side of it by GVWR: Milestone 370FLMB is 500 lb lighter (15,500 lb GVWR); Milestone 39TB is 1,700 lb heavier (17,700 lb GVWR).
| Nearest Milestone siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Milestone 36RK | 40 ft 1 in | 2 | 13,660 | 16,000 | 2,340 | 2,580 | 75 |
| Milestone 37MB | 43 ft 8 in | 8 | 15,130 | 17,900 | 2,770 | 2,920 | 75 |
| Milestone 333MB | 37 ft 10 in | 4 | 11,800 | 15,000 | — | 2,405 | — |
| Milestone 321FL | 38 ft 4 in | 4 | 10,845 | 15,000 | — | 2,225 | — |
| Milestone 377MB | 42 ft 11 in | 8 | 12,511 | 15,000 | — | 2,528 | — |
| Milestone 370FLMB | 44 ft 2 in | 8 | 12,520 | 15,500 | — | 2,675 | — |
All 9 Milestone floorplans: Milestone line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Milestone 36RK | 16,000 | 13,660 | 2 | 40 ft 1 in |
| Beacon 32RLB | 16,000 | 11,780 | — | 31 ft 3 in |
| Big Country 3200RLK | 16,000 | 12,140 | 4 | 36 ft 5 in |
| Bighorn 31RL | 16,000 | 13,060 | 4 | 36 ft 0 in |
| Bighorn Traveler 37FB | 16,000 | 12,115 | 4 | 42 ft 4 in |
| Durango Gold G383RLQ | 16,000 | 13,300 | 4 | 41 ft 5 in |
| ElkRidge 32RLS | 16,000 | 10,788 | 4 | 36 ft 2 in |
Against the Milestone 36RK: the Beacon 32RLB is 9 ft shorter; the Big Country 3200RLK is 4 ft shorter and sleeps 2 more; the Bighorn 31RL is 4 ft shorter and sleeps 2 more.
08 Common questions about the Milestone 36RK
How much does the Milestone 36RK weigh?
13,660 lb dry; 16,000 lb GVWR, the most it may weigh loaded.
How much can the Milestone 36RK carry?
2,340 lb, 15% of its GVWR (median across 491 fifth wheels here: 19%). A full fresh tank uses 622 lb of it.
What is the pin weight of the Milestone 36RK?
2,580 lb as published, 19% of the dry weight (median across 727 fifth wheels here: 19%).
What size tow vehicle does the Milestone 36RK need?
A tow rating of at least 16,000 lb, plus payload for the loaded pin weight, passengers and cargo.
How many people does the Milestone 36RK sleep?
It is rated to sleep up to 2. 8 of the 9 Milestone floorplans that publish a count sleep more.
What are the tank capacities on the Milestone 36RK?
Fresh 75, grey 87, black 50 gallons. Off hookups, fresh water runs out first.
How long is the Milestone 36RK?
40' 1" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
12 of the 18 fields this catalogue tracks are published for the Milestone 36RK. Not published: interior height, slide count, tire specification, awning, 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 9 recall campaigns against the Milestone line (a recall and a complaint are not the same thing).
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 Milestone line page.