2024 Keystone Raptor 351 vs 2025 Alliance RV Paradigm 370FB

Detailed Comparison

The 2024 Keystone Raptor 351 goes up against the 2025 Alliance RV Paradigm 370FB in this detailed comparison. Each has distinct advantages worth considering.

The Keystone Raptor 351 measures 30.0 ft in length at 7,800 lbs, compared to the Alliance RV Paradigm 370FB's 37.5 ft and 12,200 lbs. GVWR ratings sit at 10,800 lbs and 14,600 lbs respectively.

The Keystone Raptor 351 sleeps 4 while the Alliance RV Paradigm 370FB accommodates 5. Slide-outs play a role in livability: the Keystone Raptor 351 has 3 and the Alliance RV Paradigm 370FB has 5.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Alliance RV Paradigm 370FB at 66 gallons versus 51 gallons. Solar-wise, you get 250W on the Keystone Raptor 351 and 250W on the Alliance RV Paradigm 370FB. Battery banks are 200 Ah and 100 Ah.

At $82,000 MSRP for the Keystone Raptor 351 and $82,000 for the Alliance RV Paradigm 370FB, the Alliance RV Paradigm 370FB saves you $0. With only a 0% price difference, the choice comes down to features rather than cost.

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.