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2025 Heartland Milestone 370FLMB
by Heartland
Full Specifications
General Info
| Manufacturer | Heartland |
| Country of Origin | USA |
| Year | 2025 |
| Category | Fifth Wheel |
| Subcategory | — |
Dimensions & Weight
| Length | 38 ft |
| Width | 8.5 ft |
| Height | 12.5 ft |
| Dry Weight | 10,700 lbs |
| GVWR | 14,400 lbs |
| Hitch Weight | 1,500 lbs |
| Cargo Capacity | 3,700 lbs |
Engine & Chassis
| Fuel Type | N/A |
| Engine | — |
| Chassis | — |
| Horsepower | — |
| Fuel Capacity | — |
Living & Off-Grid
| Sleeping Capacity | 6 |
| Slide-Outs | 3 |
| Awning Length | 15 ft |
| A/C | 13,500 BTU |
| Furnace | 25,000 BTU |
| Fridge | 2-door residential |
| Fresh Water | 74 gal |
| Gray Water | 77 gal |
| Black Water | 49 gal |
| Solar | 250 W |
| Battery | 250 Ah |
| Inverter | 1,500 W |
About the 2025 Heartland Milestone 370FLMB
The 2025 Heartland Milestone 370FLMB by Heartland represents the 2025 pinnacle of towable RV living. Fifth wheels command a loyal following for good reason: they deliver space, stability, and a towing experience that many owners prefer over bumper-pull alternatives.
Coming in at 38.0 feet end to end, 8.5 feet wide and with a height of 12.5 feet, the 2025 Heartland Milestone 370FLMB tips the scales at 10,700 pounds dry weight, with a GVWR of 14,400 lbs, leaving you 3,700 lbs of cargo carrying capacity. Equipped with 3 slide-outs, the 2025 Heartland Milestone 370FLMB provides noticeably more elbow room at your campsite.
Families will appreciate the generous sleeping capacity of 6, with bunk beds, convertible dinettes, and a master sleeping area all contributing to the count. The 2025 Heartland Milestone 370FLMB delivers enough room for the whole family to spread out after a long day of hiking, swimming, or exploring.
Boondocking enthusiasts will value the a 74-gallon fresh water tank, 77 gallons of gray water holding, a 49-gallon black water tank. Electrical independence comes via 250 watts of factory-installed solar, 250 amp-hours of battery storage, a 1500-watt inverter for household AC power. A 13,500 BTU air conditioner keeps things cool in summer heat, and 25,000 BTU of furnace output tackles chilly evenings. A 2-door residential refrigerator keeps provisions fresh on the road and at camp. The 15.0-foot awning creates a shaded outdoor area that becomes a favorite gathering spot at camp.
With a dry weight of 10,700 lbs, you will need a properly rated tow vehicle. The hitch weight comes in at 1,500 lbs, an important factor for matching to your truck. The fully loaded GVWR of 14,400 lbs is the number to match against your tow vehicle's rating.
The $173,000 asking price places the 2025 Heartland Milestone 370FLMB among the more refined options, delivering a notch above the typical Fifth Wheel experience in both materials and execution. The 2025 Heartland Milestone 370FLMB is an excellent choice for families with children who want everyone to have their own sleeping space on camping trips without the hassle of setting up tents.
For 2025, the 2025 Heartland Milestone 370FLMB continues to demonstrate why Heartland remains a respected name in the RV industry. It delivers a compelling combination of comfort, capability, and craftsmanship that holds up under real-world scrutiny.
The 2025 Heartland Milestone 370FLMB proves that towable RVs can rival — and even exceed — many motorhomes in comfort, space, and amenities.
The 74-gallon fresh water system, combined with 77/49-gallon gray/black tanks, supports extended boondocking. Dual AC systems providing 13,500 BTU of cooling and a 25,000 BTU furnace ensure comfort in any climate.
Standard features include a 250-watt solar prep, 250 Ah battery bank, and 1,500-watt inverter. The 15-foot power awning extends the living space outdoors. Priced from $173,000, the 2025 Heartland Milestone 370FLMB is a compelling choice for full-time and extended-travel RVers.