2024 Keystone Carbon 338 vs 2025 Heartland Road Warrior 414

Detailed Comparison

The 2024 Keystone Carbon 338 goes up against the 2025 Heartland Road Warrior 414 in this detailed comparison. Each has distinct advantages worth considering.

The Keystone Carbon 338 measures 28.0 ft in length at 15,300 lbs, compared to the Heartland Road Warrior 414's 38.0 ft and 11,400 lbs. GVWR ratings sit at 19,800 lbs and 15,300 lbs respectively.

The Keystone Carbon 338 sleeps 10 while the Heartland Road Warrior 414 accommodates 9. Slide-outs play a role in livability: the Keystone Carbon 338 has 2 and the Heartland Road Warrior 414 has 0.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Heartland Road Warrior 414 at 87 gallons versus 59 gallons. Solar-wise, you get 300W on the Keystone Carbon 338 and 100W on the Heartland Road Warrior 414. Battery banks are 200 Ah and 150 Ah.

At $74,000 MSRP for the Keystone Carbon 338 and $76,000 for the Heartland Road Warrior 414, the Keystone Carbon 338 saves you $2,000. With only a 3% 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.

No comparison can replace walking through each unit yourself. Visit a dealer and experience the layouts firsthand.