COUP LK 2 5/16 ADJUST

Name: COUP LK 2 5/16 ADJUST
Brand: Master Lock
SKU: M014 378DAT
Price: 74.70 USD
Availability: InStock

$74.70

SKU: M014 378DAT

In Stock

Ships by Aug 7

Free Shipping over $100

Non-Returnable Item

Description

COUP LK 2 5/16 ADJUST

MIA's Description

The Master Lock 378DAT is a trailer coupler lock designed to deter theft. It features an advanced locking mechanism that resists picking and prying, and its construction is made to withstand rust and corrosion. This lock fits most 1-7/8 in., 2 in., and 2-5/16 in. couplers, but it does not fit Gooseneck trailer couplers.

Fitment

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Available on iOS & Android

Specifications

Brand	Master Lock
Part Number	M014 378DAT

Videos

About Master Lock Universal Trailer Coupler Lock

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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