Trailer Hitch Locks | Gus Hill Industries

Kingpins, Lunette Ring and BullDog Hitches--We can secure them all!

Our trailer hitch locks are designed with two objectives:

First, fully encase (and protect) the hitch.

Second, encase and protect the lock.

All components of our trailer hitch locks are made from materials that make tampering virtually impossible.

It only takes a thief seconds to cut through a padlock, and tow a trailer away. Cheap exposed padlocks are how most trailer hitch locks are secured.

Your trailer represents a large investment. No matter what type of trailer you have, the trailer hitch locks from GusHill Industries can protect them.

KingPin Hitch we call it the DaKing

Lunette Ring Hitch we call it DaPlug

Bulldog ® Hitch we call it DaBull

Order yours today. Just click on the link for your hitch and protect your investment as no other lock can.

Made from steel and aluminum that is designed to be virtually impossible to tamper with.

DaBull: for trailers with Bulldog ® couplers

Did you know that most trailer hitch locks for Bulldog ® couplers can be defeated simply by cutting the collar release wire? Not DaBull! DaBull fully encases the coupler making theft virtually impossible. The sleeve is made of 713 Aluminum and the tongue is made of 4130 steel.

Click here to find out more about DaBull

DaKing: for trailers with kingpin couplers

DaKing fits any standard kingpin hitch and offers superior protection for your 5th wheel, equipment or over-the road trailer. This model uses either a Pacific lock or a 11-pin ASSA high-security lock and installs in seconds.

Click here to find out more about DaKing

KingPin and lock
completely encased

KingPin exposed

Lunette Ring Exposed

Lunette Ring
and lock
completely encased

DaBull - Ball Hitch Lock |Bulldog Hitch Lock

Bulldog ®
and lock
completely encased

4130 Steel

713 Aluminum

DaKing - Kingpin Lock | Fifth Wheel Lock - Trailer Hitch Lock

DaPlug: for trailers with lunette rings

Do you own a trailer with a 2 3/8" or 3" lunette ring -type hitch? Then DaPlug is for you. This trailer hitch lock is made from cast iron, uses a 6-pin tumbler Pacific lock or 11-pin ASSA high-security lock and is available in two sizes.

Click here to find out more about DaPlug

Our trailer hitch locks protect your investment with case-hardened 6-pin tumbler Pacific Lock mechanisms.

These locks are tough! All lock parts -the case, tumblers and locking pin- are made using quality materials and will provide years of protection. Each of our trailer hitch locks encase as much of the lock as possible to protect it from tampering.