FORTRESS Trailer Coupler Lock

Prevent trailer theft with the Fortress Coupler Lock. Weather resistant and reliable, this lock stops thieves from hooking your trailer to their vehicle.
Fastway Trailer Hitches and Towing Accessories. From ball mounts and hitches to locks and chocks, Fastway offers only the best in towing equipment.

Universal Trailer Coupler Lock (378DAT) by Master Lock. Fit to 2-5/16 (59mm) trailer coupler. The Master Lock No. 378DAT features a 2-5/16in (59mm) trailer coupler lock, designed to resist rust and corrosion. Fit to 2-5/16 trailer coupler. The Master Lock No. 378DAT features a 2-5/16 trailer coupler lock, designed to resist rust and corrosion. The advanced locking mechanism provides resistance to picking and prying.

Master Lock 378DAT Trailer Coupler Lock

FORTRESS™ Coupler Lock

Fastway Fortress 86-00-5015 Maximum Security Universal Coupler Lock for 1 7/8 Inch, 2 Inch and 2 5/16 Inch Couplers : Automotive

Fastway Fortress Universal Coupler Lock, (86-00-5015)

Fastway Trailer Hitch Lock

Allows propane tanks to be securely locked when mounted to Airstream trailers. Not only does it prevent propane tank theft, but it also prevents the lid from being removed from the LP cover on the newer trailer models.

Torklift A7770 Airstream Propane Lock 1/2in

Buyers Products Drawbar Lock, Pintle Lock, (BDL253)

The Master Lock 377Ka features a trailer coupler lock, designed to fit 1-7/8 (48mm), 2 (51mm) and most 2-5/16 (59mm) trailer couplers. The advanced locking mechanism provides resistance to picking and prying. Easy to install and remove. Resists rust and corrosion. Keyed Alike. Fits 1-7/8 (48mm), 2 (51mm) and most 2-5/16 (59mm) trailer couplers Advance locking mechanism resists picking and prying Easy to install and remove Resists rust and corrosion Keyed Alike.