Trailer Coupler Lock

by Master Lock - Model # 379KA

Lifetime Guarantee

This listing is for one coupler lock keyed alike. The reason for a single lock being keyed alike is so you can either match this lock up with another padlock or if in the future you'd like to key another 379KA the same.

These locks protects unattended trailers and guards against tow-away theft. The universal trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers by Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton, Lainson, and UFP.
This simple design is difficult to defeat because when it's locked on the trailer the lock rests on top of the coupler (see image) thus thwarting blunt force from downward hammer strikes. It also rotates (less rigidity) making it harder to break with sledge hammer force.
Rekeyable cylinder for keyed alike convenience with an advanced locking mechanism that resists picking and prying. Each lock weighs 2.4 lbs. and is simple to install and remove.
Made with Reinforced Aluminum Die-Cast resists rust and corrosion. Few materials provide the strength and toughness of zinc alloys. Impact resistance is significantly higher than cast aluminum alloys, plastics, and grey cast iron. Zinc alloys offer high strengths (to 60,000 psi) and superior elongation for strong designs and formability for bending, crimping and riveting operations.

OTHER COUPLER LOCK FEATURES:

Advanced locking mechanism resists picking and prying.
Simple installation and removal.
Aluminum diecast resists rust and corrosion.
Matching colored keyhead for added convenience.
Limited Lifetime Warranty.

THE MASTER ADVANTAGE

World's Largest Padlock manufacturer, approximately 50,000,000 locks sold each year.
Ranked #1 by consumers as the best padlock brand.
All Master Lock padlocks are individually tested for quality.
97 out of 100 people recognize the Master Lock Brand name.
Market share leader in U.S. sales of padlocks.
Master Lock padlocks offer a full lifetime guarantee.

Please contact us at 856-302-5220 with any questions or comments.
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