2024 Keystone Montana 3791RD vs 2025 Keystone Impact 332

Both the 2024 Keystone Montana 3791RD and the 2025 Keystone Impact 332 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Specifications Comparison

Specification2024 Keystone Montana 3791RD2025 Keystone Impact 332Advantage
CategoryFifth WheelToy Hauler
Year202420252025 Keystone Impact 332
Length40.5 ft36.5 ft
Width8 ft8 ft
Height12.5 ft12.5 ft
Dry Weight10,300 lbs13,800 lbs
GVWR13,500 lbs16,800 lbs
Sleeping Capacity1062024 Keystone Montana 3791RD
Fresh Water68 gal81 gal2025 Keystone Impact 332
Gray Water64 gal68 gal2025 Keystone Impact 332
Black Water50 gal45 gal2024 Keystone Montana 3791RD
Fuel Capacity38 gal
Horsepower
Engine
Slide-Outs132025 Keystone Impact 332
Solar550 W350 W2024 Keystone Montana 3791RD
Battery300 Ah150 Ah2024 Keystone Montana 3791RD
Inverter2,500 W3,000 W2025 Keystone Impact 332
MSRP$72,000$72,000Tie

Detailed Comparison

Both the 2024 Keystone Montana 3791RD and the 2025 Keystone Impact 332 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Starting with size, the Keystone Montana 3791RD measures 40.5 ft long and tips the scales at 10,300 lbs dry weight. The Keystone Impact 332 comes in at 36.5 ft with a dry weight of 13,800 lbs. That gives the Keystone Montana 3791RD roughly 4.0 extra feet of length.

The Keystone Montana 3791RD sleeps 10 while the Keystone Impact 332 accommodates 6. Slide-outs play a role in livability: the Keystone Montana 3791RD has 1 and the Keystone Impact 332 has 3.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Keystone Impact 332 at 81 gallons versus 68 gallons. Solar-wise, you get 550W on the Keystone Montana 3791RD and 350W on the Keystone Impact 332. Battery banks are 300 Ah and 150 Ah.

At $72,000 MSRP for the Keystone Montana 3791RD and $72,000 for the Keystone Impact 332, the Keystone Impact 332 saves you $0. With only a 0% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

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

Individual Overviews

2024 Keystone Montana 3791RD

  • Category: Fifth Wheel
  • Length: 40.5 ft
  • Weight: 10,300 lbs
  • Sleeps: 10
  • MSRP: $72,000
View Full Specs

2025 Keystone Impact 332

  • Category: Toy Hauler
  • Length: 36.5 ft
  • Weight: 13,800 lbs
  • Sleeps: 6
  • MSRP: $72,000
View Full Specs