Mercury & Mariner Outboards - Turning Point MasterGuard Propeller Hub Kits

Turning Point’s MasterGuard® interchangeable hub system lets you reuse the same hub across multiple Turning Point propellers—saving money and protecting your drivetrain. The engineered cushion sleeve absorbs vibration and shock from sudden impacts, helping safeguard your gearcase while delivering smoother acceleration and quieter cruising.

Why choose MasterGuard at OBParts:

• Reusable & cost-effective: Swap props without buying a new hub each time.
• Vibration damping: Cushioned design reduces chatter and helps protect gears.
• Wide compatibility: Solutions for popular outboards/sterndrives from Mercury/Mariner, Yamaha, Johnson/Evinrude (BRP), Suzuki, Honda, Tohatsu/Nissan, and more.
• Fast fulfillment & support: OBParts ships quickly, and our team can help confirm fitment.
• Fitment tips: Match your engine brand, spline count, and gearcase size/HP range to the correct MasterGuard kit. If you’re moving between prop diameters or pitch within the same series, you can typically reuse the hub. Install it in the new prop according to the instructions and torque the prop nut to the specified torque.

What’s included:
Most MasterGuard hub kits include the reusable cushion sleeve/insert plus the model-specific metal spline sleeve and/or hardware needed to mount your Turning Point propeller (contents vary by engine family).

Need help?
Not sure which kit fits your motor? Contact OBParts with your engine brand, model, horsepower, and serial number, and we’ll direct you to the exact MasterGuard kit.