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1.0 out of 5 stars. 1 review
A woman outside with a dog
A woman outside with a dog

Master Lock Universal Trailer Coupler Lock, P63555

Master Lock Universal Trailer Coupler Lock, P63555

Item # 254436799

Stocked & Ready
Master Lock Master Lock Universal Trailer Coupler Lock, P63555
Master Lock Master Lock Universal Trailer Coupler Lock, P63555
$44.99

Spend $49.99 to unlock free delivery!

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Master Lock Universal Trailer Coupler Lock, P63555

Item # 254436799

Stocked & Ready
Master Lock Master Lock Universal Trailer Coupler Lock, P63555
Master Lock Master Lock Universal Trailer Coupler Lock, P63555

$44.99

Spend $49.99 to unlock free delivery!

Shopping at

Grassland (franklin) TN

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Free standard delivery on online footwear & Clothing purchases of $49 and over.

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The Master Lock No. 379ATPY features a universal trailer coupler lock, designed to fit 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers. The advanced locking mechanism provides resistance to picking and prying. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.Best Used For Outdoors Marine & Offshore Security

  • Universal trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers
  • Advance locking mechanism resists picking and prying
  • Easy to install and remove
  • Resists rust and corrosion

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Review 1

I’m selling it on marketplace, which is Facebook

3 months ago
No, it’s junk! It does not fit a 2 inch at least on the ice castle trailer hitch, which is a 2 inch.

No, I do not recommend this product.

Originally posted on Masterlock.com