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McGard Outboard Motor Locks are fully machined from thru-hardened stainless steel and feature a free-spinning collar that will turn, without loosening the lock, when gripped by tools. They are designed to lock the outboard to the transom of the boat by replacing a mounting lock with the included McGard locking nut.
| PART # | APPLICATION | THREAD |
|---|---|---|
| MGR74036 | Mercury/Mariner 40 HP and larger (2 stroke)Mercury 25 HP and larger (4 stroke)Suzuki 150 - 300 HP | 1/2"-20 |
| MGR74037 | Yamaha 40 HP and larger (2 stroke)Yamaha 30 HP and larger (4 stroke)Honda 40 HP and largerSuzuki 25 - 140 HP | M12x1-1/4 |
| MGR74049 | Honda 8 - 30 18 | 5/16"-18 |