Harbor Freight Tools


Universal Coupler Receiver Lock

Deter theft and protect your unattended trailer with this receiver lock

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Ensure that your trailer stays safe with this easy-to-use receiver lock. Made of heavy-duty aircraft aluminum, this trailer lock installs easily onto your trailer coupler and will not rust. Ideal for trailers stored outside or trailers unattended for long periods of time.

  • For commercial and recreational use on 2 in. - 2-5/16 in. couplers
  • Aircraft-grade aluminum coupler lock deters trailer theft
  • Three pin locations for a variety of coupler fitments
  • Corrosion and rust resistant heat hardened steel rod
  • Fits over 30 different coupler styles including BUYER'S ATWOOD, FULTON, U-HAUL, PRO-SERIES, TITAN, DEMCO and more

Important Information

  • Lock sold separately. HAUL-MASTER is a trademark of Harbor Freight Tools. All other brands and trade names are the property of their respective owners.

Coupler/Ball Size
2 in. - 2-5/16 in.
Shipping Weight
4.00 lb.
Note: Specifications are approximate and subject to change

We guarantee the emissions control system on your engine will be free from defects in material and workmanship for two (2) years, provided there has been no improper maintenance, misuse, or abuse of your engine. We guarantee this product to be free from defects in materials and workmanship for 90 days from the date of purchase. Limitations apply.