Williams Diesel Service was established in 1970 and located on Magnolia Avenue in historical downtown Ocala, Florida. The owners, Charles and Rosemarie Oliveros, bought the business in 1990, bringing their knowledge and expertise of the diesel industry from Miami to Marion County.
Williams Diesel is the powerhouse of diesel fuel systems today because of the dedication and commitment that the owners and employees have poured into it. The majority of the employees working for Williams Diesel Service have been with the company for seven years or more. These dedicated employees continue to build a strong network of satisfied customers. Williams Diesel Service is the only authorized diesel fuel injection shop in the area and was the first authorized Bosch Diesel drive-in facility in Florida. We offer factory authorized diesel fuel injection service as well as professional drive-in service. We are experts on Ford Powerstrokes, GM electronic diesel vehicles and Dodge Cummins Diesel.