Under the hood, a Cummins 15-liter ISX pushing 600 horsepower and 1,950 lb-ft of torque rides on a Spartan K3 chassis with Reyco Granning independent front air suspension. Serious hardware for serious miles. Inside, the 45K doesn't let up: porcelain tile with granite inlay, a Tempur-Pedic Cloud Prima King bed, Bose SoundTouch home theater in the living area, and an LED-lit electric fireplace set the tone. The kitchen punches well above RV standards with an induction cooktop, dishwasher, convection microwave, and a full 23-cubic-foot Samsung residential refrigerator. An Aqua-Hot 450 diesel hydronic system handles both water heating and in-floor heat, while the VegaTouch control system ties all the coach functions together from a single interface.
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Class a motorhomes that share features with the Cornerstone 45K, like chassis spartan.
