Which Hardware Kit For Demco Trailer Coupler # DM88XR
Updated 02/25/2026 | Published 01/12/2026 >
Products Featured in This Question
Question:
Can someone confirm that item number DM6166 will fit part DM88XR? I aske because the 2 appears to have a curved shape where bolts mount where the 2 5/16 models are flat.
asked by: Richard P
Expert Reply:
Hey Richard, yes the hardware kit part # DM68UV is correct hardware kit for the Demco Trailer Coupler # DM88XR. That curve shape in the corners of the coupler are compensated for with the hole design in the coupler. Do you have the channel already welded to your trailer frame.

Dennis
2/25/2026
Wouldn't the 6378 Demco 2-Bolt Channel Mount Coupler Hardware Kit be a better fit? (https://www.etrailer.com/Accessories-and-Parts/Demco/DM68UV.html) I bought the 4 bolt version, and it is too tight to fit the lock nuts inside. I bet someone could make it work, but I think a two-bolt version is intended (Demco product catalog seems to recommend that)

Product Page this Question was Asked From
Demco Trailer Coupler - Adjustable Channel Mount - eZ-Latch - Black - 2" Ball - 10,000 lbs
- Adjustable Trailer Coupler
- Coupler Only
- 3 Inch Channel
- 10000 lbs GTW
- 2 Inch Ball Coupler
- Auto Latch
- Powder Coat Finish
- Demco
more information >
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Richard P.
1/13/2026
Yes sir, it has one of the Curt "bulldog style " hitches and I'm not a fan so upgrading to the demco. I appreciate the help!