Bison trailers have been recognized for their superior quality construction and appearance since 1984. Because of our dedication to producing the best quality product on the market, we are able to offer the best quality warranty around. At Bison, we stand behind our product quality because we know the time, energy and effort that we put in to each and every model we produce. We also know that a happy customer will be a repeat customer – so we are committed to making you more than happy with your purchase.arranty. Bison also offers a FULL 1-YEAR Warranty on our View all Bison RV Dealers