4 Flat Bracket That Attaches To The Blue Ox Hitch BLU73UR On A 2022 Subaru Crosstrek
Updated 08/22/2025 | Published 08/19/2025
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Question:
I have a Blue Ox BLU73UR hitch installed. Can you show me what 4-pole trailer plug mounts I can install on it?
asked by: Trevor
Expert Reply:
Hi Trevor!
I wasn't sure if you meant a 4-flat wiring harness or the bracket to mount a 4-flat (or both), so I included options for both! : P
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56040
Curt Mounting Bracket for 4-Pole Flat Trailer Connector # C42CR
The wiring bracket on the # BLU73UR hitch you ordered for your 2022 Subaru Crosstrek (non Hybrid) measured a smidge over 1.5 inches center to center on the mounting holes (1.58 inches to be exact). This is fairly standard with the 4-flat brackets we carry.
What are you using the hitch for?
(click to enlarge)
Trevor
8/21/2025
Actually, I just thought about it, while I do have the place for the mount, I am not often planning on using a trailer, so I could connect the plug straight to the trailer. The mount would be more useful if I ran the harness down below and attached it to be more "permanent". So the best solution for now would just be the harness, I think.
Lazer S.
8/22/2025
Product Page this Question was Asked From
Blue Ox Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Trailer Hitch
- For Towing
- Class III
- 600 lbs TW
- 4000 lbs GTW
- 2 Inch Hitch
- Concealed Cross Tube
- Blue Ox
more information >
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Trevor
8/21/2025
Yes I meant a 4-flat connector with a bracket to connect to the piece I have on the hitch. The plan is mostly for my bicycle mount or renting a trailer for plywood.