Towing & Trailer Security Spares

At Tarnwest, we have a range of towing and trailer security options available, including hitch locks, padlocks, and coupling locks. The more security measures you put in place, the less likely your trailer will be compromised.


We stock a wide range of spares for the Towing and Trailer industry, including coupling locks, anti-luce fasteners, spring bolts, lashing rings, tailboard buffers, conspicuity tape, gudgeon pins, etc.


  • Manufacturers of Trailers
  • Trailer shop spares & parts
  • Coupling manufacturers and fitters


Replacement coupling locks

Replacement red balls

Alko replacement locks, keys and red balls

Drop Down Lashing Rings

Replacement Knott lock

Spring bolt

Door retainer

Chrome locking handle

Industry case study

Trailer manufacturer

This project involved Tarnwest designing and manufacturing a complete range of replacement locks and cylinders for a Premier Trailer and Towbar specialist.

Learn more All case studies