2024 Keystone Fuzion 427 vs 2025 Forest River Shockwave 21RQMX

Detailed Comparison

Two popular options on many shoppers' shortlists — the 2024 Keystone Fuzion 427 and the 2025 Forest River Shockwave 21RQMX. Let's see how they compare across the specs that matter most.

The Keystone Fuzion 427 measures 36.0 ft in length at 9,000 lbs, compared to the Forest River Shockwave 21RQMX's 39.0 ft and 13,900 lbs. GVWR ratings sit at 12,800 lbs and 16,800 lbs respectively.

The Keystone Fuzion 427 sleeps 7 while the Forest River Shockwave 21RQMX accommodates 9. Slide-outs play a role in livability: the Keystone Fuzion 427 has 1 and the Forest River Shockwave 21RQMX has 2.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Keystone Fuzion 427 at 98 gallons versus 76 gallons. Solar-wise, you get 150W on the Keystone Fuzion 427 and 400W on the Forest River Shockwave 21RQMX. Battery banks are 150 Ah and 150 Ah.

At $115,000 MSRP for the Keystone Fuzion 427 and $118,000 for the Forest River Shockwave 21RQMX, the Keystone Fuzion 427 saves you $3,000. With only a 3% 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.

Take these specs as a starting point, then go see them in person — there's no substitute for stepping inside.