McGard Outboard Motor Lock 74036, 1/2 inch-20 Thread, Fits Mercury/Mariner 40 HP+ and Suzuki 150-300 HP

The McGard Outboard Motor Lock (part number 74036) is a security lock designed to protect an outboard motor from theft by replacing one of the mounting nuts that holds the outboard onto the boat transom. Once installed, a free-spinning collar turns freely if gripping tools are used to try to remove it, so the lock resists wrench and pliers attacks without loosening. The lock is fully machined from stainless steel and through-hardened for durability in a marine environment. It uses a 1/2 inch - 20 thread size and a 5/8 inch hex size, with an overall lock length of 0.750 inch. The set includes 1 lock, 1 key, and 1 thread lock adhesive to help keep the lock secured in place; the black rubber cap shown on some outboard motor locks is not included with this lock. This McGard lock is designed for Mercury/Mariner outboard motors of 40 hp and larger (2 stroke), Mercury outboard motors of 25 hp and larger (4 stroke), and Suzuki outboard motors from 150 hp to 300 hp. It is backed by a 90 day manufacturer warranty and is intended for boat owners who want an affordable, straightforward way to deter opportunistic outboard motor theft at the dock or on a trailer.

Specifications

• Brand: McGard
• Manufacturer Part Number: 74036
• UPC: 083509740363
• Material: Stainless Steel
• Thread Size: 1/2 inch - 20
• Hex Size: 5/8 inch
• Overall Lock Length: 0.750 inch
• Set Includes: 1 lock, 1 key, 1 thread lock adhesive
• Mounting Type: Transom Mount
• Fuel Type: Gasoline
• Maximum Horsepower: 300 horsepower
• Weight: 2 pounds
• Warranty: 90 days

Fitment

• Mercury/Mariner outboard motors, 40 hp and larger (2 stroke)
• Mercury outboard motors, 25 hp and larger (4 stroke)
• Suzuki outboard motors, 150 hp to 300 hp

Frequently Asked Questions

What is the McGard 74036 outboard motor lock used for? The McGard 74036 replaces one of the mounting nuts holding an outboard motor onto the boat transom, locking the bolt in place to prevent the outboard from being removed by thieves.

Which outboard motors fit the McGard 74036 lock? This lock is designed for Mercury/Mariner outboard motors of 40 hp and larger (2 stroke), Mercury outboard motors of 25 hp and larger (4 stroke), and Suzuki outboard motors from 150 hp to 300 hp.

What thread size and hex size does the McGard 74036 use? The McGard 74036 outboard motor lock has a 1/2 inch - 20 thread size and a 5/8 inch hex size, with an overall lock length of 0.750 inch.

What is included in the box with the McGard 74036? The McGard 74036 set includes 1 lock, 1 key, and 1 thread lock adhesive. The black rubber cap shown with some McGard locks is not included.

Is the McGard 74036 outboard motor lock made of stainless steel? Yes, the McGard 74036 is fully machined from stainless steel and through-hardened for corrosion resistance and strength in marine use.

How does the McGard 74036 prevent theft? A free-spinning collar on the McGard 74036 turns freely if gripping tools such as pliers or wrenches are used on it, so the lock cannot be loosened by force.

How much does the McGard 74036 outboard motor lock weigh? The McGard 74036 weighs 2 pounds.

Does the McGard 74036 come with a warranty? Yes, the McGard 74036 outboard motor lock is covered by a 90 day manufacturer warranty.

Can the McGard 74036 be installed without special tools? Installation involves replacing one of the existing mounting nuts on the outboard motor with the McGard 74036 locking nut using the included hex size and key.

Will the McGard 74036 fit a 25 hp 2-stroke Mercury outboard? No. The McGard 74036 is designed for Mercury/Mariner 2-stroke outboards of 40 hp and larger; for 4-stroke Mercury outboards it fits 25 hp and larger.

Does the McGard 74036 fit Suzuki outboards under 150 hp? No, the McGard 74036 is designed for Suzuki outboard motors in the 150 hp to 300 hp range.