McGard 74040 Marine Propeller Lock, M18 x 1.5 Thread, Fits Honda, Yamaha, Suzuki, Johnson/Evinrude

The McGard 74040 Marine Propeller Lock protects your outboard motor or stern drive propeller against theft with the same patented locking design used on McGard's stern drive and outboard motor locks. The lock uses a free-spinning outer collar that turns freely if a thief attacks it with pliers, vice grips, or other gripping tools, so the lock cannot be loosened or removed without the matching key. This provides continuous 24 hour protection whether the boat is in use, in storage, or in transit.

The 74040 is built from stainless steel for durable, corrosion-resistant performance in a marine environment and features an M18 x 1.5 thread size with an overall lock length of 1.025 inches and a 1-1/16 inch hex size. Each lock set includes one propeller lock, one key, one washer, and one plastic cap, so everything needed for installation is in the box.

This propeller lock fits all Yamaha stern drives, and is designed for outboard motors including Honda 75 hp and larger, Yamaha 115 hp and larger, Suzuki 40 hp and larger, and Johnson/Evinrude 150 hp and larger. Always confirm your propeller's thread size and hex dimensions against the M18 x 1.5 specification before ordering.

Specifications

• Brand: McGard
• Manufacturer Part Number: 74040
• Thread Size: M18 x 1.5
• Overall Lock Length: 1.025 inches
• Hex Size: 1-1/16 inch
• Material: Stainless Steel
• Color: Black
• Included Components: 1 Propeller Lock, 1 Key, 1 Washer, 1 Cap
• Number of Pieces: 1
• Package Dimensions: 1 x 6 x 8 inches
• Weight: 2 pounds
• UPC: 083509740400

Fitment

• Yamaha stern drives - All
• Honda outboard motors - 75 hp and larger
• Yamaha outboard motors - 115 hp and larger
• Suzuki outboard motors - 40 hp and larger
• Johnson/Evinrude outboard motors - 150 hp and larger

Frequently Asked Questions

What propeller thread size does the McGard 74040 fit? The McGard 74040 propeller lock is sized for an M18 x 1.5 thread, with an overall lock length of 1.025 inches and a 1-1/16 inch hex size.

Which outboard motors and stern drives is the 74040 designed for? It fits all Yamaha stern drives, plus outboard motors from Honda 75 hp and larger, Yamaha 115 hp and larger, Suzuki 40 hp and larger, and Johnson/Evinrude 150 hp and larger.

What material is the McGard 74040 propeller lock made from? The 74040 is made from stainless steel for corrosion resistance in a marine environment.

What comes in the box with the 74040 propeller lock? Each McGard 74040 set includes one propeller lock, one key, one washer, and one plastic cap.

How does the McGard 74040 prevent theft? It uses a free-spinning outer collar that turns if attacked with pliers or gripping tools, so the lock cannot be loosened or removed without the matching key, giving 24 hour theft protection.

Can the McGard 74040 be used on a Mercury or Mercruiser propeller? No. The 74040 is designed for Yamaha stern drives and for Honda, Yamaha, Suzuki, and Johnson/Evinrude outboard motors within the stated horsepower ranges; McGard offers a separate propeller lock model for MerCruiser, Mercury, OMC, and Johnson/Evinrude applications.

Does one McGard 74040 key work on more than one lock? Each 74040 lock ships as a set of one lock with its own matching key, washer, and cap.

How much does the McGard 74040 propeller lock weigh? The McGard 74040 weighs 2 pounds.

What color is the McGard 74040 propeller lock? The 74040 has a black finish.

Will the McGard 74040 fit a Suzuki outboard under 40 hp? No. The 74040 is designed for Suzuki outboard motors of 40 hp and larger.

Is the McGard 74040 genuine McGard, not aftermarket? Yes, the 74040 is a genuine McGard-manufactured propeller lock, model number 74040.