Trailer Coupler Hitch Lock, 1-7/8 to 2-5/16, 3 Keys

Trailer hitch lock secures your coupler fast with an adjustable, pry-resistant design that helps deter theft during towing or storage. Built for common 1-7/8 in, 2 in, and 2-5/16 in trailer couplers, it adapts to multiple setups with 20 height settings. The zinc alloy lock body and chrome-plated finish support reliable outdoor use in rain, sun, and snow, while smooth key operation makes locking and unlocking quick at the hitch.

• Fits 1-7/8 in, 2 in, and 2-5/16 in couplers for wide trailer compatibility.


• Delivers pry- and tamper-resistant security with a heavy-duty zinc alloy core.


• Resists rust and corrosion with a chrome-plated surface for all-weather use.


• Adjusts across 20 height settings to match different coupler depths and vehicles.


• Includes 3 keys for quick, tool-free locking and convenient spares.

Keep your RV, boat trailer, utility trailer, or yacht coupler protected at the campsite, driveway, marina, or jobsite. This anti-theft trailer ball lock is designed to seat securely inside the coupler, then lock in place with a simple key turn—no extra tools, no complicated setup. Confirm your coupler size before ordering for the right fit, then set your preferred height and lock up in seconds. Grab yours today to add an extra layer of security every time you park or tow.

• Applicable coupler sizes: 1-7/8 in, 2 in, 2-5/16 in


• Height adjustment: 20 settings


• Locking method: key


• Keys included: 3


• Lock body material: zinc alloy


• Lock housing material: PP


• Finish: chrome plated


• Product size: 7.36 x 3.39 x 6.69 in (187 x 86 x 170 mm)


• Net weight: 4.63 lb (2.1 kg)


• Quantity: 1 pc