Will The Master Lock Trailer Coupler Lock ML389DAT Fit Bulldog Couplers?
Updated 09/12/2025 | Published 08/29/2025
Question:
Will it fit bulldog couplers?
asked by: Steven C
0
Expert Reply:
Hi Steven!
The Master Lock Trailer Coupler Lock - 1-7/8", 2" and 2-5/16" Ball Couplers # ML389DAT will indeed fit Bulldog couplers. This truely is universal and I don't think I have run into one it didn't fit yet. I included an image with this on a few different style couplers as well.
What kind of trailer are you wanting to use this on?
expert reply by:
Lazer S
0
Master Lock Coupler Lock ML389DAT
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
Master Lock Trailer Coupler Lock - 1-7/8", 2" and 2-5/16" Ball Couplers
- Trailer Tongue Lock
- Surround Lock
- Universal Application Lock
- Keyed Unique
- Fits 1-7/8 Inch Ball
- Fits 2 Inch Ball
- Fits 2-5/16 Inch Ball
- Master Lock
more information >
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Lazer S.
9/12/2025
Hi Steven, Did the Master Lock Trailer Coupler Lock work well with your Bulldog coupler? I'm curious to know because it could help others looking for a similar solution.