Mcgard Prop Lock Mrc Omc

PROPELLER LOCKS
PROPELLER LOCKS

24-hour-a-day theft protection. For most Mercruiser Cobra and Yamaha stern drives along with Mercury/Mariner Johnson/Evinrude and Yamaha outboards in and out of the water. Machined from naval brass and hardened stainless steel. Free-spinning collar that turns if attacked by gripping tools without loosening the lock. To install replace the propeller nut and washer with the McGard lock and belleville washer. Then tighten the lock w/special key tool provided. The easy-to-use key tool comes in many different patterns for maximum security.

Model 74039: Single Propeller lock 3/4" x 16" threads fits Stern Drives: Mercruiser: Alpha I Bravo I TRS. OMC: Cobra and King Cobra. Outboards: Mercury Mariner: 70 hp and larger Johnson Evinrude: 140 HP and larger.

Model 74040: Single Propeller lock 18" x 1.5" fits Stern Drives: All Yamaha stern drives. Outboards: All Yamaha outboards - 115 hp and larger.

Model 74044: Single Propeller thread 5/16" x 18 designed for Volvo stern drives. Clam shell packaging.