74040 Marine Propeller Lock Set For Yamaha Honda Suzuki M18 x 1.5 Thread Size
74040 Marine Propeller Lock Set For Yamaha Honda Suzuki M18 x 1.5 Thread Size
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Marine Propeller Lock Set for Yamaha Honda Suzuki
74040 marine propeller lock set secures the propeller on Yamaha, Honda, and Suzuki outboard motors with M18 x 1.5 thread size, cross-referencing OEM part number 74040.
Overview
This marine propeller lock set for Yamaha Honda Suzuki (part 74040) prevents propeller theft and keeps the propeller firmly attached to the shaft on outboards with M18 x 1.5 threads. The set includes a locking nut and hardware that replaces the standard propeller nut, adding a security layer for boat owners and marine mechanics. Designed for saltwater and freshwater use, the 74040 lock set resists corrosion and tampering.
Built For Performance
- M18 x 1.5 thread size matches Yamaha, Honda, and Suzuki propeller shafts
- Stainless steel construction resists rust and corrosion in marine environments
- Locking design requires a unique key to remove, deterring theft
- Includes locking nut, washer, and key for complete installation
- Direct replacement for OEM propeller lock set 74040
- Maintains proper propeller torque and alignment
Fits These Machines
- for Yamaha outboard motors with M18 x 1.5 propeller shaft threads
- for Honda outboard motors with M18 x 1.5 propeller shaft threads
- for Suzuki outboard motors with M18 x 1.5 propeller shaft threads
On-The-Job Use
- Securing propeller while boat is docked or moored
- Theft prevention during trailer transport and storage
- Marina and boat ramp security
- Long-term winter lay-up protection
Specs At A Glance
| Thread Size | M18 x 1.5 |
| Part Number(s) | 74040 |
Good To Know
Q: Will this propeller lock set fit all Yamaha outboards? A: It fits models with an M18 x 1.5 propeller shaft thread; check your motor’s thread size before ordering.
Q: How do I install the marine propeller lock set? A: Remove the standard propeller nut, slide on the locking nut, tighten to manufacturer torque, and secure with the supplied key.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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