Harbor Freight Tools


Gooseneck Coupler Lock

Protect your 5th wheel or RV trailer with a gooseneck coupler using this specialized lock.

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BLAYLOCK TL-53 at $101.88 Save $51.89

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Ensure that your trailer stays safe with this Gooseneck Coupler Lock. This trailer lock is designed to prevent unauthorized hook-ups to your trailer's coupler. The lock is built for easy installation and maximum security using the pinhole on the gooseneck coupler. The body is made of heavy duty aircraft aluminum to prevent tampering, rust, and corrosion. Ideal for trailers stored outside or trailers unattended for long periods of time.

  • Corrosion and rust resistant aircraft grade aluminum body
  • Hardened steel pin secures the lock to the coupler
  • Adjustable 2 pin placement for easy custom fit
  • For trailers with 2-5/16 in. gooseneck coupler

Important Information

  • Padock sold separately. For maximum security use with the HAUL-MASTER™ Gooseneck Coupler Adjustable Sleeve Lock, sold separately.

Product Height
4-1/2 in.
Product Length
11 in.
Product Width
6-1/4 in.
Shipping Weight
6.35 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.