Newmar strives to offer the best motor coach experience possible, and to that end we only accept best-in-class performance from the most trusted names in the business. The Freightliner® XCR’s strong chassis with 50,000 PSI frame rail provides Mountain Aire with a solid, confident foundation. This – along with Mountain Aire’s GVwR of 47,000 pounds and a 10,000 pound tag axle – allows Mountain Aire to expand beyond its chassis footprint, creating extra living space. Its Cummins® ISL 450 HP engine gives you incredible maneuverability and power, even on steep inclines. And if you should ever need it, Newmar’s roadside assistance program is in place for the entire warranty period. From the chassis and engine to the superstructure and interior, the Mountain Aire is built to the most exacting specifications to ensure you have the best driving and living experience available on the road.