McGard Prop Locks - Mercruiser Alpha, Bravo, TRS Prop Lock
- Overall Lock Length: 1.025"
- Thread Size: 3/4" - 16
- Hex Size: 1 - 1/16"
- Set of 1 Lock, 1 Key, 1 Washer and 1 Cap
Stern Drive Applications: MerCruiser Alpha I, Bravo I (incl. X & XR), Vazer
OMC Cobra and King Cobra
Outboard Motor Applications: Mercury/Mariner 70 hp & larger (ex. 225hp 4 stroke before 2005)
Mercury Bigfoot 40 hp, 50 hp, 60 hp (4 stroke)
Optimax 75 hp & larger, Verado 135 hp & larger
Johnson/Evinrude 150 hp & larger (2 stroke)
Propeller theft is on the rise, don't take a chance on losing your favorite outdrive or prop, for that matter be safe not sorry. Protect yourself against expensive propeller theft with a McGard propeller lock, featuring the same patented design as our stern drive and outboard motor locks. A free-spinning collar will turn if attacked by gripping tools without loosening the lock. Constructed of naval brass and hardened stainless steel, once installed our propeller lock offers maximum security for 24 hour protection.