2025 Keystone Cougar 354FLS vs 2024 Keystone Arcadia 370RL

Detailed Comparison

RV buyers frequently compare the 2025 Keystone Cougar 354FLS and 2024 Keystone Arcadia 370RL. Understanding their differences can save you from buyer's remorse.

Starting with size, the Keystone Cougar 354FLS measures 34.0 ft long and tips the scales at 14,200 lbs dry weight. The Keystone Arcadia 370RL comes in at 37.5 ft with a dry weight of 8,100 lbs. That gives the Keystone Arcadia 370RL roughly 3.5 extra feet of length.

Capacity-wise, expect to sleep 6 in the Keystone Cougar 354FLS versus 5 in the Keystone Arcadia 370RL. With 4 and 4 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Keystone Cougar 354FLS carries 100 gal of fresh water, 45 gal gray, and 46 gal black. The Keystone Arcadia 370RL offers 63 gal fresh, 66 gal gray, and 38 gal black. The Keystone Cougar 354FLS has the edge for extended dry camping.

Budget-wise, the Keystone Arcadia 370RL is listed at $57,000 compared to $68,000 for the Keystone Cougar 354FLS.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

Ultimately, both rigs have their merits — test drive each one and see which floor plan speaks to your lifestyle.