Recommended Coupler Lock for 2025 Sealion Boat Trailer
Updated 08/15/2025 | Published 07/20/2025
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Question:
I am looking for a lock for a 2025 Sealion boat trailer with a 2 5/16inch ball to protect my trailer from theft while parked in a storage lot. Which locks would you recommend? Attached is a picture of the trailer coupler.
asked by: Paul P
(click to enlarge)
Expert Reply:
Hey Paul! If you want a solid lock that is also a good visual deterrent I recommend the BulletProof Hitches Extreme Duty Coupler Lock # BPH96VR. This is a universal surround style lock that is incredibly hefty and looks the part. If you're looking for a simple lock you can run a pin through the hole in the coupler like # e39PR. This has a 1/4" diameter with a 2-3/4" span so you will have to measure to make sure it will fit first.
Product Page this Question was Asked From
BulletProof Hitches Extreme Duty Coupler Lock - 1-7/8", 2", and 2-5/16" Couplers
- Trailer Tongue Lock
- Surround Lock
- Universal Application Lock
- Keyed Unique
- Steel
- Fits 1-7/8 Inch Ball
- Fits 2 Inch Ball
- Fits 2-5/16 Inch Ball
- BulletProof Hitches
more information >
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Robin H.
8/15/2025
Hey Paul! Did the BulletProof Hitches Extreme Duty Coupler Lock work out for your Sealion boat trailer? I'm curious because I want to help others who might be in a similar situation.