United Diesel Repair LLC. Truck & Trailer Repair (909) 349-1770 14262 Whittram Ave, Fontana, CA 92335, USA Save Share Share This Post: Maps Map Street View Get Directions Close Business Info Get Directions 14262 Whittram Ave, Fontana, CA 92335, USA (909) 349-1770 City FONTANA State CA Country United States