RETRUE Trailer Hitch Lock Set — Keyed-Alike Coupler Lock Kit, Red, Adjustable Fit & Weatherproof Protection

RETRUE Keyed Alike Trailer Hitch Lock Set is a three-piece, keyed-alike anti-theft kit engineered to secure trailer couplers, receiver hitches, and latch-type tongues with weatherproof, high-strength components.

If you tow trailers, boats, or utility carts, this kit centralizes protection into one convenient package: an adjustable coupler lock, two receiver-pin hitch locks in different diameters, and a tongue-lock pin — all keyed alike so a single key operates every piece. The set is built with an aluminum body, A36 steel components, and upgraded lock cylinders to resist cutting, shearing, and the effects of harsh outdoor environments. It’s offered in a visible red finish for deterrence and ease of identification.

How does the adjustable coupler lock fit different trailer couplers?

The RETRUE coupler lock accommodates common ball-diameter couplers by offering multiple locking positions to match 1-7/8", 2", and 2-5/16" sockets. Its adjustable design lets you set the span precisely so the lock sits tight against the latch, preventing removal or opening of the coupler when in place.

• 11 locking positions for accurate fit
• Works with most 1-7/8", 2", and 2-5/16" couplers
• Secure seating that blocks latch movement

What receiver hitch sizes do the included hitch locks cover?

The set includes two receiver-pin locks sized to fit common hitch receiver and trailer lock uses. One uses a 5/8" diameter pin with a 2.8" effective length, and the other uses a 1/2" diameter pin with a 2.2" effective length, letting you secure different receivers or accessories without swapping keys.

• 5/8" pin with 2-4/5" effective length for larger receivers
• 1/2" pin with 2-1/5" effective length for smaller openings
• Both locks keyed the same for single-key convenience

How does the tongue lock pin work with latch-type couplers?

The black tongue lock pin is designed for latch-style couplers where a thin securing pin or clip would normally fit. With a 1/4" diameter and compatibility for spans up to 3/4", it replaces flimsy hardware and keeps the latch immobilized to prevent hitching without the key.

• 1/4" pin diameter fits standard latch openings
• Compatible with latch spans up to 3/4"
• Durable finish and construction to withstand outdoor use

Are these locks durable and weather-resistant enough for year-round use?

RETRUE pairs corrosion-resistant materials with reinforced lock internals to hold up in outdoor conditions. The aluminum body reduces rust risk while the high-strength A36 steel components resist cutting and shearing pressure, and the upgraded lock cylinder design increases pick and break resistance.

• Aluminum body minimizes corrosion
• A36 steel components for cut and shear resistance
• Enhanced cylinder and thicker keys for added toughness

Who is this for: This keyed-alike kit is aimed at owners of trailers, campers, boat trailers, utility trailers, and anyone who wants a single-key solution to secure couplers, receiver hitches, and latch pins. It’s particularly useful for people who need versatility across multiple trailers or frequently swap accessories, and for owners who prefer a visible, heavy-duty deterrent with weatherproof construction.