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Stern drive lock

Antitheft protection for MerCruiser, OMC, Yamaha, and Volvo stern drives

Simply replace one of the fitted nuts with a McGard security nut. Our stern drive locks are made completely of high quality, fully hardened stainless steel. This tried and tested design features a sleeve that rotates when an attempt is made to force open the lock. The lock itself though remains fixed. Give your customers the best antitheft protection for stern drives.  

STERN DRIVETHREAD SIZEMOTORPRODUCT
MerCruiser® Alpha, Bravo I-III (incl X & XR), Blackhawk
OMC Cobra & King Cobra
Volvo SX, DP-S
7/16 - 20
7/16 - 20
Single
*Twin
74018
74019
MerCruiser® TRS & II SSM1/2 - 20
1/2 - 20
Single
*Twin
74022
74023
YamahaM12 x 1.25
M12 x 1.25
Single
*Twin
74024
74025
MerCruiser® III SSM,
IV SSM, V SSM, VI SSM, NXT
5/8 - 18*Twin74026
*Twin drive sets contain 2 locks and 1 key.