CURT E16 5th Wheel Hitch Head Only, Legs or Roller Required, 16,000 lbs Model 16515CURT E16 5th Wheel Hitch Head Only, Legs or Roller Required, 16,000 lbs Model 16515 The CURT E16 5th wheel trailer hitch is an economical choice that offers many of the same features found in our Q Series 5th wheel hitches. The E16 has a gross trailer weight rating of 16,000 lbs. and can withstand a vertical load up to 4,000 lbs. It comes with a dual pivoting head, 10 degrees of lateral movement and an anti rattle skid plate to provide a smoother,