Grand General – Heavy Duty Trailer King Pin Lock – 81461

Heavy Duty Trailer King Pin Lock

The Grand General Heavy Duty Trailer King Pin Lock (81461) is designed to secure your trailer when it’s detached from the tractor, providing a simple yet effective anti-theft solution. Built from 1/4″ thick heavy-duty steel, this king pin lock prevents unauthorized coupling, ensuring your trailer stays right where you left it. Its robust design and included keys offer both reliability and peace of mind for professional drivers and fleet operators.

• Manufacturer: Grand General
• Item Number: 81461
• Material: Heavy-duty steel with 1/4″ wall thickness
• Function: Helps prevent trailer theft and unauthorized towing
• Security: Includes 2 matching keys
• Design: Heavy-gauge steel housing fits standard king pins
• Durability: Resists impact, cutting, and tampering
• Unit: Sold individually

Performance & Fit

Made from solid 1/4″ thick steel, this king pin lock is built to withstand harsh weather, rough handling, and tampering attempts. Its reinforced housing encases the king pin securely, blocking fifth-wheel couplers and deterring trailer theft. Suitable for most standard semi-trailer king pins, it offers reliable protection and ease of use.

Installation

1. Position the lock over the trailer’s king pin.
2. Slide the housing until the king pin is fully enclosed.
3. Insert the key and turn to engage the locking mechanism.
4. Verify that the lock cannot be removed without the key.

Why You’ll Love It

• Constructed from heavy-duty 1/4″ thick steel
• Effectively prevents trailer coupling and theft
• Corrosion-resistant finish for outdoor durability
• Includes two keys for convenient access
• Designed to fit most standard trailer king pins

Common Questions

• Will it fit all trailers? Fits most standard semi-trailer king pins.
• Are extra keys available? Each unit includes two keys; duplicates may be cut by a locksmith.
• Is it weather-resistant? Yes — designed for outdoor use with a corrosion-resistant coating.
• Is it sold individually? Yes — each lock is sold by unit.

⚠️ California Proposition 65 Warning:This product can expose you to chemicals including lead and other compounds, known to the State of California to cause cancer and reproductive harm.For more information, visit www.P65Warnings.ca.gov.

Note: Heavy-duty steel Trailer King Pin Lock with 1/4″ thick housing. Includes 2 keys. Helps prevent trailer theft. Sold individually.