Hitch-mounted accessories such as ball mounts, bike racks, cargo carriers, and towing adapters can be easy to remove when they are secured only with a standard hitch pin and clip. A keyless trailer hitch lock replaces that basic pin with a locking connection, adding another barrier against unauthorized removal while keeping the receiver setup simple.
The RETRUE Keyless Combination Trailer Hitch Lock uses a 5/8-inch heavy-duty pin with a 3-1/2-inch effective length and fits both 2-inch and 2.5-inch hitch receivers. It also features a resettable 4-digit combination, a waterproof rubber cover, eight O-rings, and a listed 30,000 lbs GTW rating. For users searching for a 5/8 combination hitch pin lock, keyless receiver hitch lock for truck, or anti theft hitch lock for bike rack and cargo carrier, the main advantage is securing hitch-mounted equipment without carrying another physical key.
Why a Keyless Combination Hitch Lock Is More Convenient
A traditional receiver lock depends on a key, which can be misplaced or forgotten when several people use the same truck, trailer, or accessory. A combination hitch pin lock replaces the physical key with a resettable 4-digit code, making regular access more convenient while still securing the accessory to the receiver.
The RETRUE lock uses a 5/8-inch pin and is designed for Class III, IV, and V receiver applications with standard 2-inch or 2.5-inch receiver sizes. It can secure ball mounts, cargo carriers, bike racks, trailer accessories, and other compatible hitch-mounted equipment. For buyers searching for a keyless hitch lock for 2 inch receiver, combination hitch lock for 2.5 inch receiver, or resettable trailer hitch pin lock without keys, this design reduces the need to manage separate keys while keeping the locking mechanism directly on the receiver.
Why 5/8" Pin Size and 2" / 2.5" Receiver Compatibility Matter
A 5/8 hitch pin lock is commonly used with larger receiver systems, but effective pin length still matters because different receiver tubes and accessories can require more clearance. The RETRUE lock uses a 3-1/2-inch effective pin length, giving it compatibility with both 2-inch and 2.5-inch receiver setups.
This makes it useful for owners who switch between towing accessories or use multiple vehicles with different receiver sizes. The product can be used with trailers, RVs, boats, cargo carriers, bike racks, utility trailers, travel trailers, flatbed trailers, and commercial towing applications. For users searching for a 2 inch receiver hitch lock, 2.5 inch receiver hitch pin lock, 5/8 trailer hitch lock for truck and SUV, or hitch lock for bike rack and cargo carrier, confirming receiver size and pin-hole alignment before use remains essential.

Why Weather Protection and O-Rings Matter
A receiver hitch lock sits underneath the rear of the vehicle, where it is exposed to water, road spray, dust, dirt, and changing weather. The RETRUE design uses a waterproof rubber lock cover and a corrosion-resistant coating to protect the locking mechanism during outdoor use.
The package also uses eight O-rings, which can be positioned around the pin to help reduce excess movement and noise in compatible receiver setups. For buyers searching for a weatherproof trailer hitch lock, anti rattle hitch pin lock, or water resistant combination hitch lock for outdoor towing, these features add practical value beyond basic theft protection. Regular inspection is still recommended, especially after exposure to mud, salt, or prolonged outdoor storage.
A Practical Hitch Lock for Trucks, Trailers, Bike Racks, and Cargo Carriers
A keyless trailer hitch lock is useful when owners want to secure hitch-mounted accessories without relying on a standard removable clip or separate key. The RETRUE lock combines a 4-digit resettable combination, 5/8-inch pin, 3-1/2-inch effective length, 2-inch and 2.5-inch receiver compatibility, waterproof protection, eight O-rings, and a listed 30,000 lbs GTW rating.
For buyers searching for a heavy duty combination hitch lock, anti theft receiver hitch lock, keyless hitch pin for bike rack, or trailer hitch lock for 2 inch and 2.5 inch receivers, it provides a compact security upgrade for towing and cargo accessories.
View the RETRUE Keyless Combination Trailer Hitch Receiver Pin Lock
