Photo by Grand Canyon NPS via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Grand_Canyon_Mather_Campground_-_Winter_001_-_33572880948.jpg) (CC BY 2.0)
2025 Forest River Riverstone 39FKTH
by Forest River
Full Specifications
General Info
| Manufacturer | Forest River |
| Country of Origin | USA |
| Year | 2025 |
| Category | Fifth Wheel |
| Subcategory | — |
Dimensions & Weight
| Length | 42.5 ft |
| Width | 8 ft |
| Height | 13 ft |
| Dry Weight | 12,300 lbs |
| GVWR | 15,300 lbs |
| Hitch Weight | 1,600 lbs |
| Cargo Capacity | 3,000 lbs |
Engine & Chassis
| Fuel Type | N/A |
| Engine | — |
| Chassis | — |
| Horsepower | — |
| Fuel Capacity | — |
Living & Off-Grid
| Sleeping Capacity | 5 |
| Slide-Outs | 1 |
| Awning Length | 17.5 ft |
| A/C | 13,500 BTU |
| Furnace | 25,000 BTU |
| Fridge | 3-way absorption |
| Fresh Water | 66 gal |
| Gray Water | 79 gal |
| Black Water | 40 gal |
| Solar | 550 W |
| Battery | 350 Ah |
| Inverter | 2,000 W |
About the 2025 Forest River Riverstone 39FKTH
For those who want the maximum amount of living space in a towable package, the 2025 Forest River Riverstone 39FKTH by Forest River delivers exactly that. This 2025 fifth wheel leverages its unique hitch design to create split-level luxury.
Stretching 42.5 feet from bumper to bumper, 8.0-foot width and standing 13.0 feet tall, the 2025 Forest River Riverstone 39FKTH tips the scales at 12,300 pounds dry weight, with a GVWR of 15,300 lbs, leaving you 3,000 lbs of cargo carrying capacity. Equipped with one slide-out, the 2025 Forest River Riverstone 39FKTH provides noticeably more elbow room at your campsite.
With capacity for 5 people to sleep, this is a true family hauler. The 2025 Forest River Riverstone 39FKTH arranges its sleeping areas across multiple zones, so parents can enjoy separation from the kids at bedtime while everyone shares the common living space during waking hours.
Boondocking enthusiasts will value the a generous 66-gallon fresh water supply, 79 gallons of gray water holding, a 40-gallon black water tank. On the power front, you get 550 watts of factory-installed solar, 350 amp-hours of battery storage, a 2000-watt inverter for household AC power. 13,500 BTU of air conditioning handles warm-weather comfort, while a 25,000 BTU furnace ensures warmth during cold nights. The kitchen features a 3-way absorption refrigerator for keeping provisions cold. Outside, a 17.5-foot power awning provides welcome shade for outdoor dining and relaxation.
At 12,300 pounds dry, the 2025 Forest River Riverstone 39FKTH requires a capable tow vehicle. and a tongue weight of 1,600 pounds that your hitch must support. The fully loaded GVWR of 15,300 lbs is the number to match against your tow vehicle's rating.
Priced at $55,000, the 2025 Forest River Riverstone 39FKTH sits in the competitive mid-range where buyers get meaningful features without a luxury price tag hanging over the purchase. Small families and adventurous couples will find the 2025 Forest River Riverstone 39FKTH hits a practical sweet spot between intimate coziness and the ability to host a guest or two when the occasion calls for it.
Whether you are planning weekend getaways or extended road trips, the 2025 2025 Forest River Riverstone 39FKTH from Forest River provides a well-rounded package that deserves a spot on your shortlist. Take the time to walk through one at your nearest dealer and see how it fits your travel vision.
The 2025 Forest River Riverstone 39FKTH is a premium fifth wheel that delivers residential-quality living space with the freedom to travel wherever the road leads.
The 66-gallon fresh water system, combined with 79/40-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.
The 2025 Forest River Riverstone 39FKTH is built with residential-height ceilings in the main living area, washer/dryer prep, and a 50-amp electrical system. Starting at $55,000, it competes favorably with coaches costing twice as much.