Difference Between 2-1/2 inch Hitch and 2-5/16 inch Hitch Ball
Question:
will a 2 5/16 ball work with what is called a 2 1/2inch hitch? 2.5inch seems like bit of an an oddball size- Im thinking slightly smaller ball should be okay? Thanks
asked by: Mike N
Expert Reply:
I think you may have a couple things confused but that's pretty easy to do so I don't blame you.
A 2-1/2 inch hitch is a hitch with a square opening that measures 2-1/2 inch by 2-1/2 inch like what you see in the picture I attached.
2-5/16 inch refers to the diameter of a hitch ball that installs in a ball mount which then installs in the hitch. The part # EBMK25318 is a ball mount that installs in a 2-1/2 inch hitch and comes with a 2-5/16 inch hitch ball. Based on what you mentioned I believe this will be your best option.

Product Page this Question was Asked From
etrailer Ball Mount Kit for 2-1/2" Hitches - 1-1/2" Rise or 3" Drop - 18,000 lbs
- Trailer Hitch Ball Mount
- Fixed Ball Mount
- One Ball
- 2-5/16 Inch Ball
- Steel Shank - Gloss Black
- Drop - 3 Inch
- Rise - 1 Inch
- Fits 2-1/2 Inch Hitch
- 18000 lbs GTW
- etrailer
more information >
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Jerry C.
11/28/2024
Can I use a 2 5/16 ball on a 2 1/2” hitch