Floor Plans The following 2022 Mountain Aire models are still in the line-up for the 2023 model year: 4118, 4535, and 4551. The Mountain Aire 4533 (replaced with the 4521), 4543 (replaced with the 4591) and 4589 (replaced with the 4586) floor plans are no longer being offered for the new model year. Check out … Continue reading 2023 Newmar Mountain Aire