Trailer Locks Keyed Alike for Master Lock

If you only require two #37 padlocks instead of three, we will refund you $14.00 after the transaction has been completed. Please notify us of this adjustment post-purchase.

Achieve complete trailer security with the convenience of a single key with our trailer lock combination, which includes 12 keys. The coupler lock is designed to fit 1-7/8", 2", and 2-5/16" couplers from reputable brands such as Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton, Lainson, and UFP. Its advanced locking mechanism effectively deters picking and prying, safeguarding against tow-away theft.

Key features of the coupler lock include an armored shackle guard measuring 7/8" (21mm) to resist bolt cutters, along with a rotating, case-hardened steel shackle sleeve that adds protection against cutting and sawing. The sleeve is removable for securing coupler latches; when removed, it secures latches, and when attached, it is ideal for use with hasps. The padlock includes a key retaining feature to prevent accidental unlocking.

For the receiver lock, the shaft length is precisely 2-3/4" and fits 2" receiver tubes of Class III/IV hitches. It features a Push To Lock Security mechanism for ease of use and is constructed from stainless steel for maximum corrosion resistance. The 5/8" diameter pin is rated for loads up to 10,000 lbs, providing robust theft protection for ball mounts.

The latch lock is suitable for 1-7/8" and 2" couplers but is not recommended for all 2-5/16" couplers. Specifically, it may not fit couplers where the latch is recessed or wider than 7/8". It also features an armored shackle guard and a removable sleeve for versatile use with coupler latches.

All locks within our Total Trailer Security Keyed Alike system are operable with a single key, providing seamless security across multiple locks. Each lock is supplied with two keys, totaling twelve keys for the set.

For customers requiring multiple 6KA trailer lock packages, we offer the option to key them alike automatically if ordered in quantities of two or more. Please refer to the RECEIVER LOCK options described below for more details.

For applications involving 2-5/16" couplers, we recommend the Master Lock - 6 Trailer Locks Keyed Alike 6KA-37937-3 for better compatibility and security.

Additional features of the padlock include a width of 1-9/16" (21mm) and a height of 3" (76mm). It incorporates an armored shackle guard, a rotating steel shackle sleeve, and a precision pin tumbler mechanism resistant to picking. The key retaining feature ensures that the padlock cannot be accidentally left unlocked.

The coupler lock is versatile, fitting 1-7/8", 2", and 2-5/16" couplers for the majority of manufacturers. For specific details on compatibility, please see the description provided below.

product information: