McGard Propeller Lock Set 3/4"x16 Thread– Mercury/MerCruiser/OMC • 74039

The best protection available against costly propeller theft. Once installed the McGard propeller lock offers 24 hour protection during use, storage and transit. A free-spinning collar will turn if attacked by gripping tools without loosening the lock. Constructed of naval brass and hardened stainless steel for maximum security.

• Constructed Of Naval Brass And Hardened Stainless Steel For Maximum Security
• Protects Against Costly Propeller Theft In And Out Of The Water
• Meets Or Exceeds O.E.M
• Will not Fit 225 hp 4 Stroke before 2005
• Hex Size: 1-1/16
• Overall Length: 1.025"
• Thread: 3/4" x 16

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Sterndrive Engines

• MerCruiser® Alpha I, Bravo I (Incl. X & XR), TRS, Vazer
• OMC Cobra and King Cobra

Outboard Engines

• Mercury/Mariner 70 HP and larger (exluding 225 HP 4 stroke before 2005)
• Mercury Bigfoot 40 HP, 50 HP, 60 HP (4 stroke)
• Optimax 75 HP and larger
• Verado 135 HP and larger
• Johnson/Evinrude 150 HP and larger (2 stroke)