NUOVEPE Trailer Hitch Lock 2-5/16-inch Coupler & Chain Lock, Heavy-Duty Sealed Brass Core

NUOVEPE 2 5/16" Trailer Hitch Lock is a heavy-duty coupler and chain locking system that secures a 2-5/16" trailer ball coupler and integrates safety chain protection in one push-to-lock unit.

Whether you store a boat, RV, equipment trailer, or haul heavy loads for work, this hitch lock was engineered to reduce theft risk and simplify daily hookup. It combines a reinforced steel housing, a sealed brass cylinder, and an integrated chain anchor so both the coupler and the safety chains are locked together instantly with a single click. The lock is built for frequent use and harsh outdoor environments, reducing maintenance and improving reliability where standard coupler locks fall short.

How does this lock protect both the coupler and safety chains?

The NUOVEPE design slides into a 2-5/16" coupler and captures attached safety chains against the integrated ball mount, creating a compact, reinforced barrier. By enclosing the chain anchor and removing exposed chain gaps, it increases cutting difficulty and removes convenient pry points that thieves exploit.

• Inner mechanism fits inside 2-5/16" couplers to lock both coupler and chains.
• Integrated ball mount anchor secures chain links into the lock body.
• Reduced exposed chain and fewer leverage points for pry tools.
• One solid locking action for fast, repeatable security.

Will this withstand common theft tools and harsh conditions?

The housing is made from heat-treated armor-grade steel that resists cutting, prying, and blunt-force attacks better than thin alloy locks. The lock core uses a sealed, precision brass cylinder with anti-pick features and hardened pins to limit picking, drilling, and bump-key attempts while keeping out moisture and grit.

• Heat-treated steel housing increases resistance to bolt cutters and pry bars.
• Sealed brass core with drill-resistant pins prevents corrosion and tampering.
• Powder-coated exterior protects against rust, UV, and road salt.
• Built to maintain function in wet, salty, or freezing environments.

How fast and easy is it to use on the road or at a jobsite?

This lock employs a patented puck-style push-lock mechanism that secures the coupler and chain with a single click—no loose pins, pins to align, or awkward levers. It’s designed for quick daily use so you can lock up at gas stations, marinas, campgrounds, or between work shifts without fuss.

• One-click push-lock engages quickly for repeated hookups.
• Includes five heavy-duty keys so you can keep spares in multiple locations.
• No separate padlock or exposed chain to fumble with during dirty or wet conditions.
• Compact, single-piece operation reduces installation time.

What fitment should I confirm before buying?

Measure your trailer coupler for a 2-5/16" ball-size compatibility and compare your coupler shape to the product images to ensure the internal mechanism will slide into place. The lock is intended for couplers that accept a 2-5/16" ball; incompatible coupler designs or different ball sizes will not seat correctly.

• Confirm your coupler is sized for a 2-5/16" trailer ball.
• Compare coupler shape with the product images for correct fitment.
• Not compatible with smaller or larger ball couplers or nonstandard designs.
• Contact retailer or check specifications if uncertain about fit.

Who is this for: NUOVEPE's 2 5/16" Trailer Hitch Lock is aimed at trailer owners who need a stronger, faster, and more weatherproof solution than basic coupler locks—boat owners using ramps and marinas, RV and travel trailer owners parking outdoors, contractors and landscapers leaving equipment trailers on jobsites, and anyone storing trailers in high-traffic or high-theft areas. If you regularly hook and unhook trailers and want an integrated, low-maintenance way to protect both the hitch and the safety chains, this lock offers a practical balance of speed and tough construction with spare keys for everyday convenience.