2027 Newmar Mountain Aire 4118, 2026 model year specifications and information shown. Please ask for exact details on this RV. *]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" dir="auto" tabindex="-1" data-turn-id="request-69aeb684-2eec-832c-bf53-22ccb7282d9c-3" data-testid="conversation-turn-28" data-scroll-anchor="true" data-turn="assistant"> Newmar Mountain Aire 4118 Class A Diesel Motorhome for Sale at Campers Inn RV of Louisville Experience the pinnacle of luxury travel with the Newmar Mountain Aire 4118 Class A diesel motorhome. Designed for travelers who want the very best in comfort, performance, and residential style living, this premium coach delivers an exceptional RV lifestyle. With expansive living space, elegant finishes, and powerful diesel performance, the Mountain Aire 4118 makes every journey feel like a first class getaway. From the spacious master suite to the beautifully designed living area, this motorhome offers the perfect combination of luxury, convenience, and high end craftsmanship. Key Features Bath and a Half LayoutThe convenient bath and a half design provides a private full rear bathroom for the owners and a separate half bath near the kitchen for guests. Private Master Suite with King BedThe rear master bedroom includes a king bed slide, a dresser with Samsung LED TV, and large shirt wardrobes for clothing and personal storage. Luxury Rear BathroomThe full rear bathroom features a spacious 40 x 32 shower with a seat, a linen closet, wardrobe storage, and a Splendide two piece washer and dryer for residential convenience on the road. Spacious Living Area with Dual SofasRelax in the main living area on the comfortable 84 inch hide a bed sofa or the 62 inch jackknife sofa while enjoying entertainment on the Samsung LED TV mounted on a power lift. Residential Kitchen with Premium AppliancesThe well equipped kitchen includes a Whirlpool 19.7 cubic foot refrigerator, a stainless steel 30 inch convection microwave with air fryer feature, and convenient pull out cabinet storage for cooking essentials. Hide a Leaf DinetteThe hide a leaf dinette provides a comfortable place to enjoy meals, work remotely, or gather for conversation. Exterior ShowerThe exterior shower makes it easy to rinse off gear, pets, or muddy shoes before entering the motorhome. Built on the Powerful Spartan K3 Chassis The Mountain Aire is built on a Spartan K3 tag axle chassis powered by a 525 horsepower engine delivering 1,695 lb ft of torque for smooth and confident driving. This advanced chassis design offers excellent stability, performance, and comfort for long distance travel. Hydraulic leveling jacks make campsite setup quick and easy, while the fiberglass roof with integrated gutter rail helps protect your motorhome from water runoff.