How to Determine Your Hitch Size

To determine the size of your trailer hitch, simply measure the width and height of its opening. The two most common sizes of trailer hitch openings are: 
 • 1-1/4" x 1-1/4" 
 • 2" x 2"

*The hitch class should also be marked somewhere on your hitch.

Hitch
Type

Inside
Measurements

Common
Vehicles

Maximum Load
(weight of lift & mobility device)

Class I

1 ¼” x 1 ¼”
  • Sub Compact
  • Compact
  • Some Mid-size Cars


Up to 200 lbs.

Class II 

1 ¼” x 1 ¼”
  • Most Mid-Size Cars
  • Most Mini-vans
  • Most Full-size cars
  • Some Pickups
  • Some SUVs

Up to 300 lbs.

Class III

2" x 2"
  • Some Full-Size Cars
  • Some Mini-Vans
  • Most Pickups
  • Most SUVs

Up to 500 lbs.

We suggest U-Haul’s handy hitch selection tool to find the hitch options available for your vehicle.