Witt Bros Service 701 Division St S, Northfield, MN55057 Witt Bros Service is a family-owned business with a strong 39 year history serving the community. Located in downtown…More Northfield, it is within walking distance of many stores and businesses. So, you can get your auto care needs taken care of while you shop. And as part of the NAPA Auto Care Center organization, you can be sure that your vehicle will receive the best of care. If your just stopping in for gas, you will be met with full-service care for those special extra touches and convenience.