Code 4 2″ Trailer Coupler Lock – Heavy-Duty Security Lock

Product Overview

Protect your trailer from theft with the Code 4 2″ Trailer Coupler Lock. Designed and manufactured in the USA, this heavy-duty lock is engineered to fit tightly inside compatible 2-inch trailer couplers, creating a secure “zero-gap” fit that helps prevent pry-bar attacks and unauthorized towing. Fits Straight-Tongue & A-Frame Receivers.

Built from thick industrial-grade steel and finished with a weather-resistant powder coating, this lock is designed to withstand harsh outdoor conditions while providing dependable protection for utility trailers, enclosed trailers, landscape trailers, equipment trailers, and more.

Whether your trailer is parked at a jobsite, storage lot, campground, or driveway, the Code 4 Lock provides serious protection where it matters most.

Key Features

Zero-Gap Security Design

Unlike universal trailer locks that leave room for leverage tools, the Code 4 Lock is engineered to closely match the shape of the coupler, reducing attack points and increasing security.

Heavy-Duty Steel Construction

Manufactured from thick-cut steel components designed to resist cutting, prying, drilling, and impact damage.

Durable Powder-Coated Finish

A corrosion-resistant finish helps protect against rust, road salt, moisture, and long-term outdoor exposure.

High-Security Keyed Locking System

Provides reliable protection while allowing quick access for authorized users.

Made in the USA

Proudly manufactured in Tennessee using quality materials and craftsmanship.

Ideal Applications

Perfect for securing:

• Utility Trailers
• Landscape Trailers
• Equipment Trailers
• Cargo Trailers
• Enclosed Trailers
• ATV & UTV Trailers
• Boat Trailers
• RV Utility Trailers
• Personal & Commercial Trailer Fleets

Why Choose Code 4?

Your trailer often carries thousands of dollars worth of equipment, tools, vehicles, or recreational gear. The Code 4 Lock was developed to provide a higher level of security than traditional coupler locks by eliminating common pry points and utilizing robust steel construction.

From contractors and landscapers to weekend campers and recreational trailer owners, Code 4 helps protect valuable investments from theft.

Specifications

What’s Included

• Code 4 2″ Trailer Coupler Lock
• Locking Mechanism
• Keys
• Product Instructions