Master Lock trailer coupler latch lock, 3-4/10 in shackle
Protects trailer coupler latch from movement and theft. Works with connected or unattached trailers; chrome-plated, corrosion resistant, 4-pin tumbler mechanism. Customer notes: high quality construction and precise fit, with mixed opinions on ease of use and rust resistance
Highlights
- theft protection for trailer coupler
- wide compatibility with common couplers
- corrosion-resistant chrome finish
Pros
- protects against tow-away theft
- works with connected or unattached trailer
- fits standard couplers
- chrome plated for wear resistance
- precision 4-pin tumbler mechanism
Cons
- mixed feedback on ease of unlocking
- some reports of rust resistance issues
- durability concerns from some customers
Best For
Features
- Locks trailer coupler to prevent movement when attached or unattached
- Fits UFP and surge brake couplers with 3-1/2" pin width and 9/32" pin diameter
- Chrome plated for wear and corrosion resistance with a 4-pin tumbler mechanism
- 1/2 in. hitch pin rated up to 3,500 lbs (Class I/II); 5/8 in. pin rated up to 10,000 lbs (Class III/IV)
- 360-degree rotating locking head with push-to-lock mechanism for secure operation
