RETRUE Trailer Hitch Lock Set Keyed-Alike, Blue — 3-Piece Kit with Weatherproof A36 Steel & Single Key

This lock set combines an adjustable coupler lock, two receiver-style hitch locks and a tongue latch pin into one coordinated kit so you use a single key for every locking point. Built from aluminum and high-strength A36 steel, the components are finished for weather resistance and tuned for heavy-duty wear. The kit’s blue finish helps the locks stand out visually while the upgraded cylinder and thicker keys increase durability and pick resistance.

How does this set fit different trailer couplers and receivers?

The coupler lock adjusts across multiple positions to work with the most common ball coupler sizes, while the receiver locks cover popular hitch pin diameters. Each piece was designed so a single key operates all three locks, avoiding the need for separate keys at each connection point.

• Adjustable coupler insert with 11 locking positions fits 1-7/8", 2", and 2-5/16" style couplers
• Receiver-style locks include a 5/8" pin (effective length 2.8") and a 1/2" pin (effective length 2.2")
• Tongue latch pin: 1/4" diameter tongue lock pin for latch-type couplers up to 3/4" span

What materials and construction protect against cutting and weather?

The kit pairs an aluminum exterior with internal A36 steel elements where strength matters most. Those steel components are chosen for shear and cut resistance, and the overall finish is treated to resist rust so the locks remain functional after exposure to rain and road grime.

• Aluminum outer bodies for corrosion resistance and lighter weight
• A36 high-strength steel used in pins and critical locking parts for cut/shear resistance
• Weatherproof coatings and QC inspection ensure longer field life

How does the keyed-alike feature simplify use and key management?

All three locks are supplied keyed alike so one key opens the coupler lock, both receiver locks and the tongue pin. The kit includes four identical keys, and the lock cylinders and keys were upgraded for improved toughness and fewer failures under regular use.

• Four identical keys included—no fumbling with multiple keyrings
• Reinforced lock cylinder and thicker keys for greater longevity
• Designed for quick single-key operation at each hitch point

What support and warranty do I get with this set?

RETRUE stands behind manufacturing defects with a return policy and a limited warranty period. If you spot a problem, customer support is available via the seller’s messaging system to help resolve issues or arrange a return.

• 120-day warranty against quality defects
• Responsive customer service through the platform’s “Ask a Question” option
• Clear return process for eligible quality concerns

Who is this for: This lock set is aimed at trailer owners, boat trailers, utility trailers, and contractors who need a compact, coordinated security solution for both coupler and hitch receiver points. It’s useful for anyone who prefers a single key for multiple locks, wants weather-resistant hardware, and needs a visibly deterrent, heavy-duty option to secure trailers during storage or temporary stops.