Recommended Coupler Lock for 2025 Sealion Boat Trailer
Updated 08/15/2025 | Published 07/20/2025
Products Featured in This Question
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 >
Continue Researching
- Q&A: Recommended Tire Lock And Coupler Lock For 17" Wheels On My Trailer
- Article: The Best Trailer Tongue Locks for Preventing Trailer Theft
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Q&A: How to Lock the Ark Articulating Off-Road Coupler to Deter Theft
- Q&A: Will Master Lock Trailer Coupler Lock Fit Demco eZ-Latch Coupler
- Q&A: Recommended Hitch and Bike Rack for 2020 Volkswagen Golf GTI
- Q&A: Will the BulletProof Hitches Coupler Lock Work w/ the Wider Lip on the A-Frame Trailer Coupler?
- Q&A: Is 2,000 lb Weight Rating for Ultimate Trailer Jack for the Tongue Weight or Overall Weight
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: How to Measure for Trailer Hitch Drop
- Article: Ball Mount Basics: Weight Capacity, Class, and Size
- Article: How to Accurately Measure Trailer Leaf Springs
- Article: Redarc Tow-Pro Elite Full Review
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.