Master Lock Trailer Coupler Lock Set NLA 5 Flex Zones over knuckles

5 Flex Zones over knuckles for adding dexterity and protection

Whether you're doing a master cylinder rebuild

in any season

1/4" 1/2" socket

Winter boot suitable for temperatures up to -85 degrees Celsius

Master Lock Trailer Coupler Lock Set NLA 5 Flex Zones over knucklesThe Master Lock No. 3794DAT features a trailer coupler lock, receiver lock and trailer coupler latch lock. The trailer coupler lock fits 1 7 8in (48mm), 2in (51mm) and most 2 5 16in (59mm) couplers. The receiver lock includes the Push to Lock locking mechanism, easily used by pushing the lock body firmly onto the pin and removing the key. The Weather Toughseal and water tight cap provides additional protection from moisture and dirt. The coupler latch