2025 Keystone Impact 332 vs 2024 Keystone Carbon 338

Detailed Comparison

Before committing to the 2025 Keystone Impact 332 or the 2024 Keystone Carbon 338, it pays to understand exactly where each one shines and where it falls short.

The Keystone Impact 332 measures 36.5 ft in length at 13,800 lbs, compared to the Keystone Carbon 338's 28.0 ft and 15,300 lbs. GVWR ratings sit at 16,800 lbs and 19,800 lbs respectively.

The Keystone Impact 332 sleeps 6 while the Keystone Carbon 338 accommodates 10. Slide-outs play a role in livability: the Keystone Impact 332 has 3 and the Keystone Carbon 338 has 2.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Keystone Impact 332 at 81 gallons versus 59 gallons. Solar-wise, you get 350W on the Keystone Impact 332 and 300W on the Keystone Carbon 338. Battery banks are 150 Ah and 200 Ah.

At $72,000 MSRP for the Keystone Impact 332 and $74,000 for the Keystone Carbon 338, the Keystone Impact 332 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.