2025 Heartland Milestone 370FLMB vs 2025 Heartland Cyclone 4005

Detailed Comparison

Shopping for an RV and torn between the 2025 Heartland Milestone 370FLMB and the 2025 Heartland Cyclone 4005? We've put together a detailed spec comparison to help you decide.

Starting with size, the Heartland Milestone 370FLMB measures 38.0 ft long and tips the scales at 10,700 lbs dry weight. The Heartland Cyclone 4005 comes in at 26.0 ft with a dry weight of 13,000 lbs. That gives the Heartland Milestone 370FLMB roughly 12.0 extra feet of length.

Capacity-wise, expect to sleep 6 in the Heartland Milestone 370FLMB versus 10 in the Heartland Cyclone 4005. With 3 and 1 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Heartland Milestone 370FLMB carries 74 gal of fresh water, 77 gal gray, and 49 gal black. The Heartland Cyclone 4005 offers 52 gal fresh, 70 gal gray, and 47 gal black. The Heartland Milestone 370FLMB has the edge for extended dry camping.

Budget-wise, the Heartland Cyclone 4005 is listed at $56,000 compared to $173,000 for the Heartland Milestone 370FLMB. The $117,000 difference could cover upgrades, accessories, or several seasons of camping.

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.