Cruisemaster DO35 & DO45 V1 Coupling Lock – Anti-Theft Hitch Lock for Trailers & Caravans (SKU: 18D-DO35-LOCK)

Keep your trailer, camper, or caravan safe and secure with the Cruisemaster DO35 & DO45 V1 Coupling Lock – a genuine security solution engineered specifically for Cruisemaster off-road couplings.

This anti-theft lock kit is designed to disable your hitch coupling when you’re not hitched up, preventing opportunistic theft. It’s suitable for both DO35 and DO45 V1 models and includes a dummy pin, a lock barrel, dust cover, and two keys.

How it works:

• Insert the dummy pin into the coupling’s universal joint from the top.
• The pin tip will protrude from the underside of the joint.
• Attach the lock chamber to the exposed pin end and secure it with the provided key.

Once locked, the coupling becomes inoperable, blocking any attempt to hitch up to your trailer—making it an ideal passive security solution when parked, camping, or storing your trailer long-term.

Product Features:

• Compatible with DO35 and DO45 V1 couplings
• High-strength dummy pin disables coupling operation
• Lock chamber with dust cover protects internal components
• Includes 2 keys for convenience
• Quick and easy installation and removal

If your rig uses Cruisemaster’s DO35 or DO45 V1 hitches, this is the locking solution built specifically for your setup. Rugged, compact, and easy to use—it’s peace of mind in your pocket.