Trailer Locks & Accessories Product Listings
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Boat Trailer Locks & Accessories
Whether your boat trailer is parked at home, at a storage facility, or at the ramp, the right lock can help deter unauthorized use. Wholesale Marine carries trailer coupler locks, locking pins, spare tire locks, and practical accessories for your trailer setup. Compare each product's fit and intended use before ordering.
Choose the Right Boat Trailer Lock
Coupler Locks for Parked Trailers
A coupler lock helps prevent an unattended trailer from being connected to a tow vehicle. This is a useful option when your boat trailer is disconnected and parked. Couplers vary in size and shape, so check the lock's stated compatibility against your coupler before buying. The Fulton Gorilla Guard Trailer Coupler Lock is one option to compare.
Coupler Locking Pins
A coupler locking pin passes through the coupler latch to help keep it in position. Some pins are intended to secure the latch during towing, while lockable designs may also help deter tampering. Check the pin diameter, usable length, and your coupler's latch opening. A locking pin does not serve the same purpose as a coupler lock designed to cover an unattended trailer's ball socket.
Spare Tire Locks
If your trailer carries an exposed spare, a spare tire lock can help deter its removal while the trailer is parked. Confirm that the lock fits your wheel studs and spare tire mounting arrangement. You can compare those details with the Fulton Trailer Spare Tire Lock.
Check Fit Before You Order
Trailer locks are not universal. A quick fit check can help you choose a lock that works with the hardware already on your boat trailer:
- Coupler size and shape: Match the lock to the coupler specifications, not just the trailer's ball size.
- Pin dimensions: Measure the latch hole and the distance the pin must pass through.
- Spare tire hardware: Check wheel stud diameter and the way the spare mounts to the trailer.
- Intended use: Decide whether you need to secure a disconnected trailer, retain a coupler latch, or protect a spare tire.
For other trailer needs, this category also includes accessories such as license plate brackets and coupler handles. Review each listing for dimensions and installation requirements.
Boat Trailer Lock FAQs
What type of lock do I need for a disconnected boat trailer?
Look for a coupler lock designed to block or cover the ball socket on an unattended trailer. Check that the lock fits your coupler's size and shape.
Is a coupler locking pin the same as a coupler lock?
No. A coupler locking pin passes through the coupler latch. A coupler lock for a disconnected trailer is designed to prevent a tow vehicle from connecting to the coupler. Check each product's intended use before ordering.
How do I know if a trailer coupler lock will fit?
Identify your coupler's make, model, and dimensions, then compare them with the lock's stated compatibility. Ball size alone may not confirm that a lock fits the exterior of your coupler.
Can I lock the spare tire on my boat trailer?
Yes. A compatible spare tire lock can help deter removal. Check the wheel stud diameter and spare mounting arrangement against the lock's specifications.
Shop Trailer Locks at Wholesale Marine
Browse boat trailer locks and accessories above to find an option for your coupler, latch, or spare tire. If you need help checking product fit, call Wholesale Marine at 877-388-2628.