Master Lock Keyed-Alike Trailer Lock Set — Receiver & Coupler 2-Piece Set, Hardened Steel

Master Lock 2848DAT is a two-piece keyed-alike trailer security set that locks both your 5/8" receiver and adjustable coupler latch with one key for streamlined protection.

This matched receiver and coupler lock kit from Master Lock pairs a bent-pin receiver lock with a detachable coupler latch lock so you can secure both common trailer access points without juggling multiple keys. Built with hardened steel components and precision tumblers, the set is designed to resist cutting, prying and picking while providing simple, fast operation. The package includes both lock bodies, stainless-style shackles, a protective sleeve and four identical keys so you can share access when needed.

How does the receiver lock secure my trailer?

The bent-pin receiver lock is designed to insert into a 5/8" receiver tube and stay firmly in place using a bent shank that resists pullout. A chrome-plated sleeve protects the shackle and receiver interior from weather and abrasion, extending service life.

• Fits standard 5/8" hitch receiver holes
• Hardened bent pin for higher shear resistance
• Chrome-plated sleeve for corrosion protection
• Quick quarter-turn engagement for fast locking and unlocking

What makes the coupler latch lock adjustable and easy to install?

The coupler lock features an adjustable stainless-steel shackle and a compact case that fits most common latch designs, allowing you to size it for a snug fit on different trailers. Installation is tool-free in many cases, and the lock stays in place once set for dependable security during transport or storage.

• Adjustable shackle to accommodate varied latch widths
• Sturdy lock case resists tampering and impact
• Simple setup — often no tools required
• Designed for repeated removal and reinstallation

Why choose keyed-alike locks instead of separate keys?

Keyed-alike means all supplied keys operate both the receiver and coupler locks, so you carry one key instead of two. This reduces fumbling at the job site or campsite and makes sharing access with trusted users effortless when you distribute duplicate keys.

• Four identical keys included for owner and backup use
• No need to match separate key codes for each lock
• Simplifies access for fleet or multi-user scenarios
• Maintains convenience without sacrificing strength

How durable are these locks in outdoor conditions?

Components use chrome plating and stainless-style hardware to resist rust and wear from road exposure. Hardened pins increase shear strength, and the precision locking mechanism reduces the risk of picking, giving you long-term performance when stored on trailers outdoors.

• Hardened pins improve cut and shear resistance
• Corrosion-resistant finishes for roadside durability
• Precision cylinders for pick resistance and reliable operation
• Designed for frequent use in outdoor environments

Who is this for? This Master Lock 2848DAT kit is intended for trailer owners, contractors, landscapers and anyone who tows equipment and needs a simple, rugged way to secure both the hitch receiver and coupler latch. It’s a practical choice for single-trailer owners who prefer one-key convenience and for small fleets that want uniform locks that are quick to install, share among drivers, and stand up to regular road use.