Total Length for Curt 20K 2-Ball Mount 45937

Updated 08/30/2025 | Published 08/13/2025

Question:

On Curts Website HD Adjustable Trailer Hitch Ball Mount with Dual Ball, 2-1/2inch Shank, 20K 45937 the diagram shows that the distance between hitch pin to center of ball is 14 1/4 inches, but in your other comments you say its 12 1/4. I do see that curt shows the 2in receiver as being 12 1/4inch and the 2 1/2inch receiver has the 14 1/4 distance. Can you confirm the 2 1/2 in receiver pin to ball measurement? I attached Curts image from their webpage.

asked by: Justin

Curt Website Dimensions for Ball Mount
(click to enlarge)

Expert Reply:

Hey Justin, thanks for reaching out!

I went out to the warehouse and confirmed that the Curt Adjustable 2-Ball Mount # C79NR measures 12-1/4" from the center of the hitch pin hole to the center of the hitch ball.

Not sure what tape measure Curt was using to take their measurements, but they are definitely wrong on their site by 2". Check out the photos I took from the warehouse to see the dimensions I measured.

Does the shorter 12-1/4" distance work for you?

expert reply by: Jon G