Outdrives and Accessories - Drive Couplers

Drive and Damper Plates can be found here.

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:
$489.99

HP Bravo Drive Coupler 8M0098795, 861523A9

525-8M0098795

Mercruiser HP Bravo Drive Coupler 8M0098795

  • Replaces Mercruiser # 8M0098795 and 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
Your Price:
$305.99

Engine Coupler

676-18-2172

Additional Details:

  • Fits: MCM GM V-6 & V-8 (305 & 350 cid) engines

Interchanges/Replaces

GLM

  • 11520

Mallory

  • 9-72500

Mercruiser Stern Drive

  • 14505A2

Engine Coupler
Your Price:
$305.99

Engine Coupler

676-18-2173

Additional Details:

  • Fits: MCM Ford 225, 233 & 888

Interchanges/Replaces

GLM

  • 11510

Mallory

  • 9-72501

Mercruiser Stern Drive

  • 59826A1
  • 59826A3

Engine Coupler
Your Price:
$196.99

Engine Coupler

676-18-2171

Additional Details:

  • For: All GM engines except MR/Alpha/Bravo with "Triangular", 3-bolt coupler

Interchanges/Replaces

GLM

  • 11500

Mallory

  • 9-72502

Mercruiser Stern Drive

  • 32492A2
  • 32492A3
  • 32492A5
  • 38965A1
  • 38965A2
  • 76850A2

Engine Coupler
Your Price:
$455.99

Engine Coupler

676-18-2413

Additional Details:

  • Fits: MCM 470 & 485 (224 cu. in) S/N 4208730-6218036 (1976-1982)

Interchanges/Replaces

Mallory

  • 9-72504

Mercruiser Stern Drive

  • 69354A1
  • 69354A2

Engine Coupler
Your Price:
$206.99

Engine Coupler

676-18-2321

Key Features:

  • Same as 18-2195 without yoke

Additional Details:

  • Fits: MCM 120/2.5L & 140/3.0L (1987-1993)

Interchanges/Replaces

Mallory

  • 9-72506

Mercruiser Stern Drive

  • 12632A6

Engine Coupler
Your Price:
$234.99

Engine Coupler

676-18-2323

Key Features:

  • Same as 18-2175 without yoke

Additional Details:

  • Fits: MCM 3.0L (1999 & Newer), 4.5L MPI, GM V-6 & V-8 (305 & 350 cid) engines (1993 & Newer) with Alpha

Interchanges/Replaces

Mallory

  • 9-72507

Mercruiser Stern Drive

  • 18643A5