Trailer Coupler Lock, 2-5/16in (59mm) | 500378DAT

The Master Lock No. 378DAT features a 2-5/16in (59mm) trailer coupler lock, designed to resist rust and corrosion. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.

• Fits 2-5/16in (59mm) trailer couplers
• Advance locking mechanism resists picking and prying
• Easy to install and remove
• Resists rust and corrosion