2024 Keystone Montana 3761FL vs 2025 Keystone Montana 3855BR

Detailed Comparison

Shopping for an RV and torn between the 2024 Keystone Montana 3761FL and the 2025 Keystone Montana 3855BR? We've put together a detailed spec comparison to help you decide.

Starting with size, the Keystone Montana 3761FL measures 38.0 ft long and tips the scales at 14,600 lbs dry weight. The Keystone Montana 3855BR comes in at 28.5 ft with a dry weight of 12,000 lbs. That gives the Keystone Montana 3761FL roughly 9.5 extra feet of length.

Capacity-wise, expect to sleep 9 in the Keystone Montana 3761FL versus 6 in the Keystone Montana 3855BR. With 2 and 4 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Keystone Montana 3761FL carries 63 gal of fresh water, 43 gal gray, and 38 gal black. The Keystone Montana 3855BR offers 67 gal fresh, 55 gal gray, and 48 gal black. The Keystone Montana 3855BR has the edge for extended dry camping.

Budget-wise, the Keystone Montana 3761FL is listed at $78,000 compared to $97,000 for the Keystone Montana 3855BR.

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.

The numbers tell one story, but the feel of a floor plan is personal. Schedule a walkthrough before you decide.