2025 Keystone Cougar 24RDS vs 2024 Heartland Mallard M260

Detailed Comparison

Both the 2025 Keystone Cougar 24RDS and the 2024 Heartland Mallard M260 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Starting with size, the Keystone Cougar 24RDS measures 26.0 ft long and tips the scales at 4,500 lbs dry weight. The Heartland Mallard M260 comes in at 18.5 ft with a dry weight of 9,400 lbs. That gives the Keystone Cougar 24RDS roughly 7.5 extra feet of length.

The Keystone Cougar 24RDS sleeps 10 while the Heartland Mallard M260 accommodates 3. Slide-outs play a role in livability: the Keystone Cougar 24RDS has 3 and the Heartland Mallard M260 has 0.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Heartland Mallard M260 at 57 gallons versus 22 gallons. Solar-wise, you get 250W on the Keystone Cougar 24RDS and 300W on the Heartland Mallard M260. Battery banks are 200 Ah and 150 Ah.

At $105,000 MSRP for the Keystone Cougar 24RDS and $104,000 for the Heartland Mallard M260, the Heartland Mallard M260 saves you $1,000. With only a 1% 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. If you're a weekend camper, don't over-buy — the smaller, lighter model may serve you perfectly.

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