Heartland Milestone
19 floorplansFifth wheel2019– (in production)Mixed build tier
Heartland (Mixed tier): Milestone
What one actually costs today: $30,700–$112,500 across the line, new sticker or used estimate per model.
THE FLOORPLANS: 19
| MODEL | YEARS | LENGTH | GVWR | SLEEPS | PRICE TODAY | FINDING ONE |
|---|---|---|---|---|---|---|
| 31RL | 2026– | 36.1 ft | 14,800 lb | 4 | $99,000 | Findable |
| 36RK | 2027– | 40.1 ft | 16,000 lb | 2 | $96,400 | Findable |
| 39TB | 2026– | 43.8 ft | 17,700 lb | 8 | $112,500 | Findable |
| 310RK | 2024–24 | 34.8 ft | 15,000 lb | 4 | $54,400used est. | Findable |
| 317RL | 2020–21 | 36.2 ft | 15,000 lb | 6 | $37,600used est. | Findable |
| 321FL | 2023–25 | 38.4 ft | 15,000 lb | 4 | $69,300used est. | Findable |
| 326RL | 2021–22 | 38.4 ft | 15,000 lb | 4 | $45,800used est. | Findable |
| 333MB | 2023–25 | 37.8 ft | 15,000 lb | 6 | $69,300used est. | Findable |
| 360HP | 2022–23 | 41.1 ft | 15,000 lb | 4 | $62,400used est. | Findable |
| 360RD | 2019–20 | 40.3 ft | 15,000 lb | 6 | $48,500used est. | Findable |
| 370FLMB | 2020–25 | 44.2 ft | 15,000 lb | 4 | $76,200used est. | Common |
| 377MB | 2019–25 | 42.9 ft | 15,000 lb | 8 | $72,800used est. | Common |
| 379FLML | 2019–24 | 43.2 ft | 15,000 lb | 8 | $70,200used est. | Common |
| 380DSL | 2024–25 | 43.4 ft | 15,000 lb | 8 | $75,400used est. | Findable |
| 386BH | 2020–25 | 43.3 ft | 15,000 lb | 8 | $72,900used est. | Common |
| 387RBH | 2019–20 | 42.1 ft | 15,000 lb | 8 | $50,600used est. | Findable |
| 389TB | 2019–20 | 42.1 ft | 15,000 lb | 8 | $50,600used est. | Findable |
| M1-28BH | 2021–21 | 34.4 ft | 12,500 lb | 6 | $30,700used est. | Findable |
| M1-28RL | 2021–21 | 34.4 ft | 12,500 lb | 4 | $33,800used est. | Findable |
THE LINE, YEAR BY YEAR
Assembled from eight-plus model years of brochures, floorplan by floorplan. This is the part a spec sheet can't tell you: which years changed, and which year is the buy.
- 2019Introduced
- 2020Introduced
- 2020Dealer stock only
- 2021Introduced
- 2021Dropped
- 2021Dropped in favor of the 386BH
- 2021Introduced as the M-One sub-series
- 2022Dropped when the 326RL took its slot
- 2022Introduced
- 2022Standard 380 W solar with 2,000 W inverter added
- 2022Dropped
- 2023Introduced
- 2024Introduced
- 2024Dropped
- 2024Dry weight up to 13,184 lb, hitch to 2,900 lb
- 2025Dropped
- 2025Dealer stock only
- 2026Introduced with the redesigned Milestone
- 2026Dropped
- 2026Dropped in the Milestone relaunch
- 2027GVWR unchanged, MSRP up to $98,993
- 2027Introduced
- 2027GVWR raised 17,500 to 17,700 lb; dry up to 15,375 lb
Which Milestone is the right one, if any?
A line this size hides real differences behind similar names. Set what you care about (weight, bunks, build, budget) as sliders, and watch every floorplan here get ranked against the whole market, not just against each other.
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