Keystone Alpine
28 floorplansFifth wheel2010– (in production)Mixed build tier
Keystone (Mixed tier): Keystone RV
What one actually costs today: $32,800–$129,000 across the line, new sticker or used estimate per model.
THE FLOORPLANS: 28
| MODEL | YEARS | LENGTH | GVWR | SLEEPS | PRICE TODAY | FINDING ONE |
|---|---|---|---|---|---|---|
| 3011CK | 2024–26 | 34.9 ft | 15,000 lb | 4 | $79,500used est. | Findable |
| 3020RE | 2018–22 | 34.2 ft | 15,000 lb | 4 | $52,400used est. | Findable |
| 3100RE | 2026– | 34.9 ft | 16,000 lb | 4 | $101,800 | Findable |
| 3102RL | 2023–25 | 35.8 ft | 15,000 lb | 4 | $78,300used est. | Findable |
| 3120RS | 2020–22 | 34.9 ft | 15,000 lb | 4 | $58,200used est. | Findable |
| 3220RL | 2021–25 | 36.8 ft | 15,500 lb | 4 | $84,000used est. | Findable |
| 3303CK | 2024– | 37.3 ft | 16,500 lb | 4 | $115,600 | Findable |
| 3320MK | 2019–21 | 34.5 ft | 15,000 lb | 4 | $49,800used est. | Findable |
| 3400RS | 2017–20 | 36.3 ft | 15,000 lb | 4 | $49,300used est. | Findable |
| 3450GK | 2020–21 | 37.4 ft | 15,500 lb | 4 | $55,400used est. | Findable |
| 3450RL | 2011–15 | 38.8 ft | 15,500 lb | 4 | $39,300used est. | Findable |
| 3500RE | 2010–15 | 38.3 ft | 15,500 lb | 4 | $41,100used est. | Findable |
| 3500RL | 2017–20 | 39.0 ft | 15,500 lb | 4 | $60,200used est. | Findable |
| 3640RL | 2010–12 | 39.2 ft | 15,500 lb | 4 | $32,800used est. | Findable |
| 3650RL | 2013–23 | 38.7 ft | 15,500 lb | 4 | $71,700used est. | Common |
| 3660FL | 2016–18 | 39.1 ft | 15,500 lb | 6 | $54,300used est. | Findable |
| 3700FL | 2018–26 | 41.4 ft | 17,090 lb | 6 | $88,400used est. | Common |
| 3710FL | 2026– | 41.4 ft | 18,000 lb | 6 | $128,900 | Findable |
| 3710KP | 2019–21 | 41.4 ft | 16,500 lb | 6 | $55,400used est. | Findable |
| 3712KB | 2020– | 41.4 ft | 16,500 lb | 6 | $129,000 | Common |
| 3720MD | 2022–25 | 41.4 ft | 16,500 lb | 6 | $91,500used est. | Findable |
| 3790FK | 2020–25 | 41.4 ft | 16,500 lb | 6 | $97,800used est. | Common |
| 3800FK | 2018–20 | 41.4 ft | 16,500 lb | 6 | $37,600used est. | Findable |
| 3820FK | 2025– | 41.9 ft | 18,000 lb | 6 | $123,900 | Findable |
| 3850RD | 2019–23 | 41.4 ft | 16,500 lb | 6 | $79,700used est. | Findable |
| 3900RE | 2015–19 | 39.1 ft | 15,500 lb | 4 | $52,200used est. | Findable |
| 3910RK | 2021– | 42.9 ft | 16,500 lb | 6 | $124,700 | Common |
| 3912DS | 2023–25 | 43.2 ft | 16,500 lb | 6 | $84,500used 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.
- 2010Introduced with the Alpine line
- 2011Introduced
- 2012Discontinued
- 2013Introduced
- 2015Discontinued
- 2016Introduced
- 2017Introduced
- 2018Introduced
- 2018Discontinued
- 2019Introduced
- 2020Introduced
- 2020Discontinued
- 2020Final model year
- 2021Introduced
- 2021Discontinued
- 2021Replaced by 3712KB
- 2022Discontinued
- 2022Introduced
- 2023Introduced
- 2023Final model year
- 2023Fresh water raised from 66 to 75 gal
- 2024Introduced
- 2025Discontinued
- 2025Introduced
- 2026Replaced by 3100RE
- 2026Introduced
- 2026Final model year
- 2026Dual 18K Furrion Chill Cube A/C with heat pump and SolarFlex Protect 220 became standard
Which Alpine 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.
Rank the whole line →