We Ship Using FedEx
Most
orders ship within
1-2 business days
We Accept PayPal


We Accept Most Major Credit Cards

Master #377 Universal Coupler Lock

$29.95

  • Fits many 1-7/8" and 2" couplers.
  • Adjusts to fit many makes and models.
  • Will NOT fit couplers that do not have a lip, such as Bulldog® couplers.
  • Each lock comes with 2 keys.

MSRP = $38.33 / $39.28 for KA

The Master 377 has been a mainstay of the Master trailer coupler lock line for years and is still a popular choice. Just be sure your trailer coupler has a lip for it to lock over. ie. The Master 377 lock WILL NOT work on Bulldog couplers.

Uses a Master K1 Key and can be matched to many other Master Lock products in our inventory: see our section on "Keyed-Alike Locks".
Master K1 Keyway Comes with 2 Keys

Add to Cart:

  • Model: MA-377
  • Shipping Weight: 3.75lbs
  • Manufactured by: Master Lock
  • UPC: 071649047954

Please Choose:

If ordering more than 1 of these locks

Keying






Your IP Address is: 35.175.190.77
Copyright © 2018 Heartland Lock Online Store. Powered by Zen Cart
Zen Cart