Lake Orion Master Radiator & Auto Service provides quality car care in Lake Orion, MI. We are a family-owned business delivering honest and professional automotive repair and auto maintenance services to the people of Lake Orion and surrounding areas. Lake Orion Master Radiator & Auto Service provides quality car care in Lake Orion, MI. We are a family-owned business delivering honest and professional automotive repair and auto maintenance services to the people of Lake Orion and surrounding areas.