Length And Mounting Hole Spacing For The Demco Channel Tongue Trailer Coupler # DM16080-81

Updated 11/03/2025 | Published 01/15/2025

Question:

What is the length of the Demco Channel Tongue Trailer Coupler - Black - 2-5/16inch Ball - 3inch Channel - Bolt On - 21K I attached a picture of the tongue coupler I need to replace.

asked by: Nicolette M

Expert Reply:

Hey Nicolette,

I didn't get the picture but the Demco Channel Tongue Trailer Coupler # DM16080-81 is 16" in overall length and has a 10-1/4" channel length. I measured the mounting holes from the coupler end back and drew up a little diagram as well so you can see if this matches up to your current bolt pattern.

If you have any other questions about the # DM16080-81 or still need help picking out the correct replacement just let me know below in the comments and I'd be happy to help.

expert reply by: Kevin C

DM16080-81 Mounting Hole Spacing
(click to enlarge)

Jesse M.

11/3/2025

Hey Nicolette, did the 16-inch Demco channel tongue coupler line up with the bolt pattern on your trailer? Knowing how the fit turned out could help others looking for the same replacement.