2025 Forest River Sierra 3330BH vs 2024 Forest River Sierra 391FLRB

Detailed Comparison

Before committing to the 2025 Forest River Sierra 3330BH or the 2024 Forest River Sierra 391FLRB, it pays to understand exactly where each one shines and where it falls short.

The Forest River Sierra 3330BH measures 33.0 ft in length at 10,400 lbs, compared to the Forest River Sierra 391FLRB's 38.0 ft and 9,300 lbs. GVWR ratings sit at 13,300 lbs and 11,500 lbs respectively.

The Forest River Sierra 3330BH sleeps 9 while the Forest River Sierra 391FLRB accommodates 6. Slide-outs play a role in livability: the Forest River Sierra 3330BH has 4 and the Forest River Sierra 391FLRB has 1.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Forest River Sierra 391FLRB at 75 gallons versus 72 gallons. Solar-wise, you get 150W on the Forest River Sierra 3330BH and 300W on the Forest River Sierra 391FLRB. Battery banks are 300 Ah and 150 Ah.

At $59,000 MSRP for the Forest River Sierra 3330BH and $60,000 for the Forest River Sierra 391FLRB, the Forest River Sierra 3330BH saves you $1,000. With only a 2% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

No comparison can replace walking through each unit yourself. Visit a dealer and experience the layouts firsthand.