Boat and Utility Trailer Parts and Repair. New Boat Trailer Sales. Trailer hubs, trailer springs, trailer axles, trailer bearings, trailer jacks, trailer tires, trailer lights, trailer brakes, and much more! Champion Trailers® is located in Slidell, Louisiana off Interstate 10. Not only does Champion offer a retail store experience, we also ship out trailer parts throughout the United States and beyond. Our knowledgeable staff is here to help you with your trailer parts or repair needs whether it is for a boat trailer, enclosed trailer, standard utility trailer, or car haulers. Don’t forget about our custom built boat and utility trailer axles!