2008 NEWMAR Newmar All Star 3950, The 2008 Newmar All Star M-3950 is a 39-foot 6-inch Class A diesel motorhome built on a Spartan chassis with a 360HP or 350HP Cummins engine and Allison 3000MH transmission. It typically features 1 slide-outs, hydraulic leveling jacks, a 50-amp service, and roughly 105-gallon fresh water capacity. Key Specifications & Features Engine & Chassis: Cummins diesel (350-360hp) on a Spartan chassis. Dimensions: ~39'6" length, 12'7" exterior height. Weight Ratings: Approx. 34,500 lbs GVWR and 40,500 lbs GCWR. Capacities: 105 gal fresh water, 2000-watt inverter, 8kW generator. Key Amenities: Dual 13.5M/15M Penguin heat pump A/Cs, hydraulic leveling jacks, side-view cameras, and optional exterior entertainment center