Outdrives and Accessories - Drive Couplers

DriveGuardian, Bravo
Your Price:
$2,495.99

DriveGuardian, Bravo

221-1015

Replaces Stock Coupler

DriveGuardian is a patented device that reduces the leading cause of pitted/broken gears and twisted shafts in Bravo sterndrives. DriveGuardian replaces the factory Bravo rubber coupler with a multi-plate torque-limiting clutch that is calibrated to your specific application. The cause of many gear and shaft failures is the enormous torque spike that is generated each time the propeller either partially or fully leaves the water, and then is re-submerged. These spikes are generated by the inertia of the rotating engine components and can be 2X-4X the actual torque output of the engine. Each spike lasts only a fraction of a second and throttling alone cannot eliminate them. Every spike causes stress to the gears and shafts which greatly reduces their usable life.

DriveGuardian has been proven on the racecourse with numerous National and World Championships in offshore powerboat racing.

Prior to shipment, each DriveGuardian is mounted to a specially built dyno and load tested to ensure they meet strict manufacturing standards. Your DriveGuardian is then calibrated for your specific engine and drive combination.

DriveGuardian is manufactured with billet aluminum housings and Kevlar clutch plates. DriveGuardian replaces the stock rubber coupler and installation is a direct bolt-on with no additional modifications required. Includes a 1-year Manufacturer Warranty.

Make sure to fill out this calibration questionnaire when ordering.


COUPLER ASSY Mercruiser 861523A9
Your Price:
$442.99

HP Bravo Drive Coupler 861523A9

525-861523A9

Mercruiser HP Bravo Drive Coupler 861523A9

  • Replaces Mercruiser # 861523A9
  • For use with Bravo Drives
  • High Performance Coupler
Note: Always make sure when installing a new coupler that the engine is aligned properly, failure to do so will greatly reduce lifespan.

Engine Coupler Mercruiser 14505A2
Your Price:
$322.99

Engine Coupler Mercruiser 14505A2

676-9-72500

Engine Coupler
Replaces: Mercruiser 14505A2
Fits: newer GM blocks one piece rear main seal that use a stud mount coupler, for MCM (GM) V6 & V8 (305 & 350 cid)

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle. NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.


Engine Coupler Mercruiser 59826A3
Your Price:
$313.99

Engine Coupler Mercruiser 59826A3

676-9-72501

Engine Coupler
Replaces: Mercruiser 59826A3
Fits: Ford 225, 233 & 888

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle.

NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.


Engine Coupler Mercruiser 6935A2
Your Price:
$445.99

Engine Coupler Mercruiser 6935A2

676-9-72504

Engine Coupler
Replaces: Mercruiser 6935A2
Fits: MCM 470 & 485

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle.

NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.


Engine Coupler Mercruiser 76850A2
Your Price:
$196.99

Engine Coupler Mercruiser 76850A2

676-9-72502

Engine Coupler
Replaces: Mercruiser 76850A2
Fits: GM inline 4-6 V6 & V8 up to 350 cid

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle.

NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.


Engine Coupler Mercruiser 12632A6
Your Price:
$202.99

Engine Coupler Mercruiser 12632A6

676-9-72506

Engine Coupler
Replaces: Mercruiser 12632A6
Fits: 120/2.5L/140/3.0L 1987-93, 3.0L/LX 1993-98

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle. NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.


Engine Coupler Mercruiser 18643A5
Your Price:
$241.99

Engine Coupler Mercruiser 18643A5

676-9-72507

Engine Coupler
Replaces: Mercruiser 18643A5
Fits: 3.0L 1999-up, GM V6 & V8 with MR/Alpha 1983-up

Mallory Marine Gear Repair Kits are the best solution to repair a lower or upper unit after a gear failure. These kits contain everything you ned to do a proper repair including a complete gear set, all necessary bearings, seals, o-rings, shims, gaskets, and other related parts. No need to worry about missing an item when ordering parts just order one part number and get all of the parts you need to do the complete repair.
Made from the highest quality materials our drive parts are the best in the aftermarket. Our gears and shafts are made to the highest OEM quality standards so they install and shim quickly and easily with out any hassle. NOTE: Internal drive parts should only be installed by a service professional. Never attempt to install any gears shafts or bearings without using the proper shimming tools to assure a long lasting repair.