Trailer Hitch Coupler Lock Dia with pan for Tow Boat RV Truck Car, Corrosion-Resistant Locking Pin, Anti-Theft Design

Protect your investment with our Trailer Hitch Coupler Lock Dia 1/4" Span 3/4"—a compact yet powerful solution for securing trailers, boats, RVs, trucks, and cars. Crafted with high-strength carbon steel and finished in black electrophoretic coating, this lock is designed to withstand harsh weather conditions while providing long-lasting protection from rust and corrosion.

This heavy-duty Trailer Hitch Coupler Lock delivers effective theft prevention through its unique tongue lock pin design. The 1/4-inch diameter locking pin offers a snug, secure fit, while the 3/4-inch effective span makes it compatible with a wide range of couplers. Once locked in place, the pin is fully recessed—making it virtually impossible to cut, break, or tamper with.

Whether you’re towing a camper or securing cargo on a utility trailer, this coupler lock ensures a safer and more secure journey. It’s ideal for travel trailers, marine trailers, and other towed vehicles that require reliable protection.

Features & Benefits:

• High-strength steel construction with black electrophoretic coating for corrosion resistance and extended lifespan.

• Trailer Hitch Coupler Lock Dia 1/4" pin with 3/4" effective span fits most trailer couplers.

• Anti-theft design—locking pin is hidden and tamper-resistant when fully secured.

• Simple 1/4-turn operation with flat key design—just spin the key 5–7 times to lock or unlock.

• Comes with 2 keys, allowing for backup or shared access.

• Compact and lightweight, making it easy to carry or store in your glovebox or toolbox.

• Compatible with tow hitch setups on boats, RVs, trucks, and cars.

• Excellent choice for fleet managers, outdoor enthusiasts, or anyone who tows frequently.

This locking pin is the ideal mix of convenience, durability, and protection—built to deliver peace of mind for every trip.