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Welcome To

Sheehan Trailers

Sheehan Trailers now South Dakota Trailer Comapny in Watertown, SD & Sioux Falls, SD  features premier national brands like Haulmark Enclosed trailers, Stealth Enclosed trailers, Aluma aluminum trailers, local favorite DCT alumninum & steel trailers, Finish Line steel trailers, Beartrack aluminum utility trailer, and 2 new up & coming trailers built right here in the Midwest with brands Octaneenclosed trailers & Alcom brands Stealth, Cargo Pro, Sno Pro & Mission all aluminum enclosed trailers. We carry a large selection of new inventory as well as pre-owned inventory. The dealership has a full sales, service, and parts department with friendly and experienced staff. Visit or call us Monday through Saturday for all your Trailer needs in Watertown or Sioux Falls!