Piston Kits - Johnson Evinrude

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

525-861523A9

Mercruiser HP Bravo Drive Coupler 8M0098795

  • 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.

Piston Kit
Your Price:
$129.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4107

Additional Details:

  • Bore Size: 3.000 / Std

Interchanges/Replaces

GLM

  • 23910

Johnson/Evinrude Outboard

  • 392621
  • 5006657

Mallory

  • 9-53412

Wiseco

  • 3027PS
  • 3127PS

Piston Kit
Your Price:
$100.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4124

Additional Details:

  • Bore Size: 3.000 / Std

Interchanges/Replaces

GLM

  • 24040

Johnson/Evinrude Outboard

  • 387284
  • 5006751

Mallory

  • 9-53416

Wiseco

  • 3015PS
  • 3115PS

Piston Kit
Your Price:
$75.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4120

Additional Details:

  • Bore Size: 3.500

Interchanges/Replaces

GLM

  • 24010

Johnson/Evinrude Outboard

  • 393271
  • 393924
  • 5006658
  • 5006661

Mallory

  • 9-53420

Wiseco

  • 3073PS
  • 3173PS

Piston Kit
Your Price:
$41.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4122

Key Features:

  • Standard, Port

Interchanges/Replaces

GLM

  • 23800

Johnson/Evinrude Outboard

  • 393566
  • 5006659

Mallory

  • 9-53430

Wiseco

  • 3018PS
  • 3118PS

Piston Kit
Your Price:
$121.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4063

Additional Details:

  • Bore Size: 3.187 / Std

Interchanges/Replaces

Johnson/Evinrude Outboard

  • 394461
  • 433945
  • 437409
  • 437411
  • 5006701

Mallory

  • 9-53432

Wiseco

  • 3072PS
  • 3172PS

Piston Kit
Your Price:
$116.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4190

Additional Details:

  • Bore Size: 3.5995 (port) / Std

Interchanges/Replaces

Johnson/Evinrude Outboard

  • 436860
  • 5006691

Mallory

  • 9-53442

Piston Kit
Your Price:
$121.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4065

Additional Details:

  • Bore Size: 3.685 (port)

Interchanges/Replaces

GLM

  • 24050

Johnson/Evinrude Outboard

  • 432072
  • 432969
  • 5006671
  • 5006675

Mallory

  • 9-53466

Wiseco

  • 3019PS
  • 3119PS

Piston Kit
Your Price:
$155.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Piston Kit

676-18-4123

Additional Details:

  • Bore Size: 3.625

Interchanges/Replaces

GLM

  • 23940

Johnson/Evinrude Outboard

  • 392455
  • 5006656

Mallory

  • 9-53468

Wiseco

  • 3021PS
  • 3121PS