Trailer Coupler Lock for 1-7/8, 2, 2-5/16 In, 3 Keys

Trailer hitch lock secures your coupler fast to help deter theft while parked or in storage. Designed for common 1-7/8 in, 2 in, and 2-5/16 in couplers, this heavy-duty trailer ball lock blocks access to the hitch for RVs, boats, and utility trailers. An aluminum alloy body with a reinforced core resists prying and impacts, while the coated finish helps stand up to outdoor weather.

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


• Delivers anti-pry protection with a tough alloy body and reinforced core structure.


• Resists rust and corrosion with a powder-coated surface for year-round outdoor use.


• Includes 3 keys for quick locking/unlocking without tools or extra hardware.


• Works with RVs, boats, off-road trailers, and cargo trailers for everyday security.

Keep your tow setup protected between trips with a coupler lock built for real-world conditions—sun, rain, road spray, and cold storage. Installation is straightforward: insert into the coupler, adjust to position, and lock with the key. Ideal for driveways, campgrounds, marinas, and job sites where unattended trailers are a target. Confirm your coupler size before ordering, then grab yours today for dependable, no-fuss hitch security.

• Material: Aluminum alloy lock body; reinforced core structure


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


• Locking method: Key


• Keys included: 3


• Product size: 3.66 x 2.56 x 4.33 in (93 x 65 x 110 mm)


• Net weight: 1.32 lb (0.6 kg)


• Color: Black


• Quantity: 1 piece