Turning Point Hub Kit #501 - 11500100

Turning Point MasterGuard #501 Propeller Hub Kit (11500100)

Protect your lower unit and maximize prop performance with the Turning Point MasterGuard #501 Hub Kit (11500100). Engineered with high-strength corrosion-resistant brass splines and advanced shock-absorbing inner polymers, the MasterGuard 500-Series hub system eliminates spun hubs and harsh shift shock.

Whether you are fitting a Turning Point Hustler® aluminum or Express® stainless steel propeller, or upgrading a competitor's propeller, Kit #501 delivers easy installation and unmatched drive protection.

Key Features

• Advanced Shock Absorption: Reduces prop chatter, shift impact, and potential drivetrain/gearbox damage.

• Corrosion-Resistant Construction: Built with heavy-duty brass splines and marine-grade components to thrive in saltwater and freshwater environments.

• Eliminates Spun Hubs: Durable inner sleeve design engineered to endure high torque and harsh aquatic impacts.

• Universal Interchangeability: Fits Turning Point Express Mach3, Mach3 OS, Mach4, and Hustler series housings, and adapts to fit Solas® Rubex®, Michigan Wheel® XHS®, and Mercury® Flo-Torq® propeller hubs.

• Easy Field Replacement: Allows simple propeller changes or hub replacements without special shop tools.

Detailed Product Description

The Turning Point 11500100 (Hub Kit #501) is designed to provide seamless power transfer while safeguarding your engine’s lower unit. Conventional rubber hubs often slip, degrade, or spin out over time under high loads, but the MasterGuard polymer system cushions against strike impacts without sacrificing throttle response or top-end speed.

Designed with a 15-tooth spline configuration, the #501 kit fits a wide range of popular 4.25" and 4.75" gearcase outboards and sterndrives from Mercury, Mariner, MerCruiser, Honda, Force, and Suzuki.

Engine & Drive Compatibility Guide

Note: Always verify your prop shaft spline count (15 Spline) and gearcase diameter before purchasing.

• Mercury & Mariner Outboards (15-Spline, 4.25" & 4.75" Gearcases):

  • 40 – 60 HP Command Thrust / BigFoot (4-Stroke)

  • 70 HP (1987–1989), 75 & 80 HP (1978–1989), 90, 100, 115, 125, 140 HP

  • 150 XR4/XR6 (thru 1993)

  • OptiMax: 75, 90, 115, 125 HP & 150–250 HP

  • 135 – 300 HP V6 & Verado 135 – 300 HP (Non-HD)

  • 90CT, 115CT, 150, & 200 – 300 HP 4-Stroke / SeaPro

• MerCruiser Sterndrives:

  • Alpha One & Bravo I (1983 & Newer)

• Honda Outboards:

  • 75 & 90 HP (1995–1998)

  • BF75, BF90 (1999+), BF115, BF130 (15-Spline Shaft)

• Force Outboards:

  • 75 HP (1999) & 90–150 HP (1995 & Newer)

• Suzuki / Johnson (4-Blade Props Only):

  • DF50AV, DF60AV, DF115A, DF140, DF140A (4-Stroke)

Technical Specifications

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.