Forest River Sierra
30 floorplansFifth wheel2015– (in production)Mixed build tier
Forest River (Mixed tier): Sierra is the Sandpiper's badge twin - welded aluminum-framed laminated construction, mid-pack Forest River quality control.
What one actually costs today: $27,700–$109,000 across the line, new sticker or used estimate per model.
THE FLOORPLANS: 30
| MODEL | YEARS | LENGTH | GVWR | SLEEPS | PRICE TODAY | FINDING ONE |
|---|---|---|---|---|---|---|
| 38FKOK | 2018–22 | 41.8 ft | 15,823 lb | 6 | $66,000used est. | Findable |
| 39BARK | 2020–22 | 41.0 ft | 15,079 lb | 6 | $62,100used est. | Findable |
| 321RL | 2020–22 | 35.0 ft | 13,669 lb | 4 | $48,600used est. | Findable |
| 368FBDS | 2019–20 | 41.3 ft | 15,500 lb | 6 | $42,400used est. | Findable |
| 372LOK | 2016–20 | 41.8 ft | 15,500 lb | 8 | $43,100used est. | Findable |
| 373BH | 2020–20 | 41.7 ft | 15,500 lb | 6 | $47,400used est. | Findable |
| 377FLIK | 2015–19 | 40.6 ft | 15,500 lb | 8 | $40,100used est. | Findable |
| 379FLOK | 2017–21 | 42.8 ft | 16,069 lb | 6 | $45,600used est. | Findable |
| 383RBLOK | 2019–20 | 42.2 ft | 15,500 lb | 10 | $47,400used est. | Findable |
| 384QBOK | 2017–22 | 41.7 ft | 16,132 lb | 8 | $63,600used est. | Common |
| 387MKOK | 2016–19 | 41.6 ft | 15,500 lb | 8 | $42,300used est. | Findable |
| 388BHRD | 2022–22 | 43.4 ft | 15,904 lb | 8 | $64,900used est. | Findable |
| 388HRD | 2024–24 | 43.7 ft | 15,094 lb | 7 | $64,700used est. | Findable |
| 391FLRB | 2022–24 | 43.5 ft | 16,009 lb | 4 | $79,100used est. | Findable |
| 2850RL | 2017–19 | 31.4 ft | 10,000 lb | 6 | $27,700used est. | Findable |
| 3250IK | 2017–19 | 32.1 ft | 10,000 lb | 6 | $28,100used est. | Findable |
| 3330BH | 2022–22 | 38.3 ft | 13,769 lb | 6 | $49,000used est. | Findable |
| 3370RLS | 2023– | 36.3 ft | 13,560 lb | 4 | $84,800 | Common |
| 3440BH | 2022–22 | 40.4 ft | 14,075 lb | 6 | $50,100used est. | Findable |
| 3550BH | 2023– | 43.5 ft | 15,500 lb | 8 | $93,000 | Common |
| 3660MB | 2022–22 | 41.3 ft | 14,115 lb | 6 | $51,500used est. | Findable |
| 3710HBFB | 2026– | 42.8 ft | 15,500 lb | 8 | $94,300 | Findable |
| 3770FL | 2022–22 | 40.6 ft | 14,175 lb | 6 | $52,000used est. | Findable |
| 3800RK | 2024– | 44.1 ft | 15,500 lb | 4 | $100,400 | Findable |
| 3844QUAD | 2026– | 42.8 ft | 16,295 lb | 6 | $109,000 | Findable |
| 3880BH | 2023–25 | 42.2 ft | 16,260 lb | 7 | $74,900used est. | Findable |
| 3900HBLR | 2025– | 42.8 ft | 16,085 lb | 3 | $97,400 | Findable |
| 3990FL | 2023– | 43.5 ft | 15,375 lb | 10 | $101,800 | Common |
| 4002FB | 2023– | 43.4 ft | 15,500 lb | 6 | $98,900 | Common |
| 4003MB | 2023– | 42.8 ft | 15,500 lb | 7 | $97,400 | Common |
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.
- 2015Introduced
- 2016Introduced
- 2017Introduced at 42'9" with a 15,500 lb GVWR and 2,495 lb pin
- 2017Introduced
- 2017Introduced under Sierra HT
- 2018Introduced
- 2018Length listed at 41'9"
- 2019Introduced
- 2019Discontinued
- 2019Length listed at 41'5"
- 2020Introduced
- 2020Discontinued
- 2020Discontinued after a single model year
- 2020GVWR raised 569 lb to 16,069 lb, pin to 2,568 lb; length back to 42'9"
- 2021Not offered
- 2021Final model year
- 2022Returned at 15,823 lb GVWR, then discontinued
- 2022Returned at 15,079 lb GVWR, then discontinued
- 2022Returned at 13,669 lb GVWR, then discontinued
- 2022Returned at 16,132 lb GVWR, then discontinued
- 2022Discontinued after a single model year
- 2022Introduced
- 2022Introduced under Sierra Luxury
- 2023Introduced
- 2024Discontinued after a single model year
- 2024Introduced
- 2024Discontinued
- 2025Carried over unchanged
- 2026Introduced
- 2026Still listed - identical spec to the Sandpiper 3800RK, roughly $250 apart on MSRP
Which Sierra 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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