Vehiclex Hitch Pin Lock for 2.5"–3" Trailer Receivers — 5/8" Tubular Key & Anti‑Rattle O‑Rings

Vehiclex Hitch Pin Lock secures 2.5"–3" trailer receivers with a 5/8" locking pin and a unique tubular key to deter theft and stop rattle.

Whether you tow a bike rack, small trailer, camper or boat carrier, leaving a hitch exposed invites theft and annoying noise. The Vehiclex hitch pin lock is engineered to fit a broad range of Class III and IV receivers (2.5"–3") and uses a durable carbon-steel construction, a 5/8" locking pin, and a tubular key system to improve security. Protective features — including a rubber key cap, multiple O-rings, and corrosion-resistant coating — keep the lock working smoothly in muddy, salty, or dusty conditions.

How does this lock fit my hitch receiver?

The Vehiclex lock is designed for common receiver sizes in the 2.5" to 3" range and accepts a 5/8" pin, the standard diameter for Class III and IV hitches. It installs like a standard hitch pin but secures with a tubular key that prevents easy picking.

• Compatible with 2.5" and 3" square receivers used on bike racks, cargo carriers, and small trailers
• 5/8" pin diameter matches most Class III/IV applications
• Locks in place with an insertable tubular key for one-handed operation
• Includes two identical keys for backup or shared use

Will this lock resist weather, mud, and road grime?

Yes — the body is carbon steel treated with a black electrophoretic (e-coat) finish to slow corrosion. A rubber cap shields the keyway from dust and mud, while the overall fit prevents debris from jamming the mechanism.

• Electrophoretic coating helps protect metal surfaces from rust
• Rubber key cap keeps grit and water out of the lock cylinder
• Tight tolerances reduce exposure to road spray and salt
• Regular rinsing and lubrication extend service life

How does the lock stop rattling and improve towing comfort?

The Vehiclex design uses five rubber O-rings that compress to accommodate slight variations in receiver inner width, eliminating play between the pin and receiver. Removing movement not only reduces annoying noise but also protects hitch-mounted accessories from wear caused by vibration.

• Five rubber O-rings absorb vibration and prevent metal-on-metal movement
• Adjustable compression fits tight or slightly oversized receivers
• Reduced rattle translates to quieter towing and less hardware fatigue
• Simple installation retains full towing capacity while improving comfort

What security features make it hard for thieves to remove?

The tubular key system offers a higher degree of tamper resistance versus basic pin clips or keyed hitch pins. Combined with hardened carbon-steel construction and a secure locking collar, this unit increases the time and effort required to remove the hitch, discouraging opportunistic theft.

• Unique tubular key pattern reduces risk of unauthorized access
• Hardened carbon-steel shank resists sawing and bending
• Locking mechanism concealed by a protective collar and rubber cap
• Two keys included so you always have a spare

Who is this for: The Vehiclex Hitch Pin Lock is ideal for owners of SUVs, pickups and vans who want a straightforward, robust way to secure bike racks, cargo carriers, boat trailers, or small campers. It suits users who tow regularly in mixed conditions — from dusty trails and muddy ramps to salted winter roads — and who want reduced trailer noise plus better theft deterrence without complicated installation.