CURT straight-tongue couplers, featuring our posi-lock latch, are one of the most common types of trailer couplers and are popular for use as a boat trailer coupler. With a mounting channel designed to fit onto a trailer tongue, these couplers are easy to install. They are made from strong steel construction and have a durable finish to resist corrosion.
The lockable latch mechanism on our straight-tongue trailer couplers is simple to operate and can accept one of our coupler locks. We carry straight-tongue couplers in a range of weight capacities and standard ball diameters.