Turning Point MasterGuard Propeller Hub Kit 503 - 11500300

Turning Point is the only company to offer MasterGuard Installation kits and prop housings for 6 - 300+ HP engines with a Lifetime Warranty Hub. Boaters save up to 33% when buying a replacement propeller housing. MasterGuard hubs offer enhanced lower unit protection and hubs are reusable most of the time after a prop strike.

Turning Point's MasterGuard Hubs are engineered to withstand typical wear and tear over time without risk of spinning or failure under normal operational use. Turning Point's unique patented one piece hub with glass filled nylon over durable marine bronze splines eliminates failures commonly seen in multi-part "sleeve and spline" designs, and pressed-in rubber hub systems.

Eliminate Hub System Vibration and Chatter: Innovative one piece design reduces the number of parts and eliminates failures commonly seen in multi-part hub systems.

Eliminate Hub Cracking and Failure: The glass reinforced high-tech polymer construction increases flexibility, eliminating potential material stress fractures.

Corrosion Resistant Materials: Premium corrosion resistant durable marine bronze splines.

Reduce Gear Shock and Engine/Drive Damage: MasterGuard hubs offer Shock absorbing high-tech polymer cushion with lower unit protection.

Easy to Install: Clear and easy step-by-step directions coupled with minimal parts makes installation easy.

Features:

• MasterGuard 500 Series Installation Kit for Engines with 4.25" or 4.75" Gearcases
• Lifetime warranty for engines under 200 HP with aluminum or stainless steel props and engines 200+ HP with aluminum props only
• MasterGuard Installation/Hub Kits carry the only Lifetime Warranty in the WORLD!
• Hubs have no warranty restrictions, except for extreme commercial use
• Saves a boater up to 33% on replacement propeller purchases (need to purchase prop housing only)
• One piece design: durable marine Bronze with Over Molded Glass Filled Nylon for Long Life
• Reusable after a Prop Strike
• Enhanced lower unit protection
• Warranted even if used in competitive propeller housings (Mercury, Michigan Wheel, Solas)
• Also used as a hub upgrade to fit Solas Rubex, Michigan Wheel XHS, and Mercury FloTorq propeller housings
• 500 Series Installation Kits Also Available for Evinrude, Honda, Johnson, Mariner, Mercury, MerCruiser, Nissan, OMC, Parsun, Suzuki, Tohatsu, & Yamaha Outboards and Sterndrives
• This kit contains a hub, and other hardware for installing Turning Point Stainless Steel Express Mach3, Mach3 OS, Mach4, and Aluminum Hustler propeller housings or compatible competitive propeller housings (from Mercury, Michigan Wheel, Solas, etc.)

Applications:

• Evinrude and Johnson: (13 spline shaft)
  • 2 cylinder: 50 HP ('71-'74) / 45 to 55 HP commercial
  • 3 cylinder: 55, 60, 65, 70, 75 HP with large gearcase, 65 HP commercial
  • 4 cylinder: 75, 85, 88, 90, 100, 110, 115, 120 ('86-'94), 125, 135 ('73-'76), 140 ('77-'84, '86-'94)
  • H.O. (includes E-TEC H.O.): 60, 90, 115 HP
  • E-TEC: 40, 50, 60, 65, 75 HP / 20" shaft: 90, 115 HP (not pontoon series), 130 HP ('09-'10)
• OMC: (13 spline shaft)
  • Cobra 400: 2.3 to 3.0 L ('78-'89) / Sea Drive: 1.6 to 1.8 L

Notes:

• Please consult the Turning Point Prop Wizard to ensure proper fitment and compatibility. Product description may be insufficient for hub kit selection
• Turning Point Propellers do not include hubs. Hub kits are required to install a propeller

Hub Selection Guide (1.88 MB)

Installation Instructions