Coupler Lock

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This easy to use trailer hitch coupler lock can be used with latch type couplers with a locking hole in the handle to prevent trailer theft. The coupler lock features a 1/4" x 3/4" pin for 1-7/8" or 2" couplers and includes two keys.


The HP41 coupler lock is an affordable way to keep your trailer more secure. Simply place the pin through the locking hole on the handle of a latch type coupler and tighten the lock by turning the key. The coupler lock features a 1/4" diameter, 3/4" long pin and includes two keys.

Trailer hitch coupler lock - 1/4" x 3/4" pin
1-7/8" or 2" Couplers
1-3/4"L x 1-5/8"W x 7/8"H

Product Features

  • For latch type couplers with locking hole through handle
  • Prevents trailer theft
  • Easy to install - Tightens with the turn of a key
  • 1/4" x 3/4" pin
  • Includes two keys
  • All coupler locks are keyed alike

Review Summary