The Curt Manufacturing weight distribution hitch is a specialized towing system that provides improved vehicle and trailer control by leveling the trailer and more evenly distributing its tongue weight across the trailer's and vehicle's axles. Weight distribution hitches are commonly used on travel trailers and campers but can also be applied to other large loads.This replacement weight distribution head is designed to fit the light-duty trunnion bar WD hitch #17346. It is made from solid steel for reliable strength and comes with a durable powder coat finish to resist rust and wear. It offers a gross trailer weight capacity of 5,000 lbs. and a tongue weight capacity of 500 lbs. It can also be adjusted to accommodate different size trailers.