Amarine Made Outboard Motor Lock, Stainless Steel with Brass Cylinder — Heavy-Duty Corrosion-Resistant Clamp with Cushioned Anti-Theft Design

The Amarine Made Stainless Steel Hi-Security Outboard Motor Lock with a brass cylinder is a corrosion-resistant clamp-style lock that secures most outboard motors and prevents theft and clamp loosening.

This heavy-duty outboard lock pairs a polished stainless-steel U-channel with a durable brass lock cylinder for long-lasting performance in marine environments. Designed to resist saltwater corrosion and daily wear, the lock uses a cushioned interior to eliminate rattle and protect your motor’s finish. Its adjustable clamping slot and adaptable locking mechanism fit a wide range of outboard clamp bolts, making it a practical anti-theft accessory for boats, dinghies, and tenders.

How does this lock withstand saltwater and harsh conditions?

The body is crafted from polished stainless steel to resist rust and retain strength when exposed to marine elements. The brass lock cylinder reduces wear and maintains smooth operation over time. Together they offer a balance of toughness and corrosion resistance without sacrificing ease of use.

• Polished stainless-steel construction for saltwater durability
• Solid brass cylinder resists wear and maintains smooth key action
• Sterilized, smooth surfaces reduce corrosion points
• Recommended mounting orientation (key down) to keep water out

Will this lock fit my outboard clamp and bolt sizes?

The clamp slot is adjustable and the internal lock mechanism accommodates different bolt diameters, so it fits most outboard models. Check the lock’s external dimensions against your clamp to ensure a secure fit; the design keeps your clamp tight and deters unauthorized removal.

• Adjustable clamp slot for versatile fit
• Internal mechanism suits a range of bolt thicknesses
• Dimensions: height 1.57" (40 mm), length 11.89" (303 mm), width 1.54" (40 mm)
• Prevents clamp loosening and reduces theft risk

How easy is it to install and use on a boat?

Installation is straightforward and the lock sits out of the way when mounted, making it convenient for routine use. Foam linings inside both sections cushion the clamp, prevent vibration, and eliminate rattling noise so the lock won’t interfere with normal operations.

• Simple clamp-style attachment—no complex tools required
• Internal sponge linings to stop vibration and noise
• Compact profile that does not obstruct access to the motor
• Key-facing-down mounting reduces water entry into the cylinder

What maintenance and mounting tips keep the lock reliable?

Mount the lock with the keyhole pointing downward to avoid trapping water inside the cylinder and U-channel. Periodic rinsing with fresh water and occasional lubrication of the brass cylinder will prolong smooth operation and help prevent salt deposits from building up.

• Mount key facing down to keep water out of the lock
• Rinse with fresh water after saltwater exposure
• Occasional light lubrication on the keyway preserves function
• Inspect sponge linings and stainless finish for debris

Who is this for: The Amarine Made stainless-steel outboard lock is intended for boat owners, marina users, and anyone who stores or transports outboard-powered vessels and wants a rugged, low-profile theft deterrent. It’s ideal for people who need a corrosion-resistant solution that protects clamp hardware, reduces vibration noise, and fits a variety of outboard clamp styles without obstructing normal use.