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Turning Point Propellers 11500300 MasterGuard Installation Kit 503

Manufacturer

Turning Point Propellers

<h3>About Turning Point Propellers</h3><p>Founded in 1997 and headquartered in Jacksonville, Florida, <strong>Turning Point Propellers</strong> has spent more than 26 years doing one thing exceptionally well: engineering boat propellers that outperform the competition. From recreational day boaters to demanding offshore anglers, Turning Point has built a reputation as a go-to source for high-performance aluminum and stainless steel propellers designed to maximize speed, handling, and fuel efficiency on the water.</p><p>Turning Point's philosophy is straightforward — leverage cutting-edge metallurgy, advanced casting technologies, and aggressive blade geometry to produce the best-performing propeller in every category. The result is a lineup that covers everything from small outboards to high-horsepower sterndrive applications, with <a href="/7621-turning-point-propellers-propeller-parts-accessories-202388">propeller parts and accessories</a> rounding out the ecosystem for boaters who want a complete solution.</p><h3>Flagship Product Lines</h3><p>Two series anchor the Turning Point lineup. The <strong>Hustler Series</strong> aluminum propellers are manufactured using an exclusive squeeze-cast process that produces a tighter grain structure, stiffer blades, and resistance to flex — delivering stainless-steel-like performance at an aluminum price point. A proprietary five-step powder coating process adds a uniform, corrosion-resistant finish that stands up to years of saltwater exposure.</p><p>The <strong>Express Series</strong> stainless steel propellers push performance even further. Vented barrels allow exhaust gases to escape during acceleration, reducing water density around the blades and enabling faster hole shots. The Express Mach4's patented Dual Geometry blade design — featuring two different blade shapes in a single propeller — delivers unmatched acceleration and cornering without sacrificing top-end speed. <a href="/7621-turning-point-propellers-quicksilver-propellers-202408">Quicksilver-compatible propellers</a> from Turning Point give Mercury engine owners a compelling high-performance alternative, as the Express and Hustler lines are engineered to fit a broad range of Mercury outboards and sterndrives.</p><h3>MasterGuard Hub System</h3><p>One of Turning Point's most celebrated innovations is the <strong>MasterGuard Hub System</strong> — the first interchangeable hub system ever introduced to the propeller market. Using a patented one-piece design with glass-filled nylon over brass splines, it eliminates the failure points common in traditional sleeve-and-spline and pressed-rubber hub systems. A high-tech polymer cushion absorbs shift shock and impact energy, protecting the engine and drivetrain. MasterGuard hubs carry an industry-leading lifetime warranty and are cross-compatible with Mercury Flo-Torq II, Michigan Wheel XHS, and Solas Rubex hub systems, making them ideal for boaters looking to upgrade without replacing existing hardware.</p><h3>Broad Engine Compatibility</h3><p>Turning Point propellers are engineered to fit engines from virtually every major outboard and sterndrive manufacturer, including Yamaha, Honda, Suzuki, Evinrude, Johnson, OMC, Volvo Penta, Tohatsu, and Mercury. Whether you're shopping for <a href="/7621-turning-point-propellers-acme-propellers-201593">ACME-spline propellers</a> for an inboard or sterndrive application or seeking a direct Quicksilver replacement, Turning Point has a prop to match. Their 500 and 700 Series hub kits further simplify cross-compatibility across 4.25&quot; and 4.75&quot; gearcase sizes.</p><h3>Why Boaters Trust Turning Point</h3><ul><li>Squeeze-cast aluminum and TP17 stainless steel construction for maximum blade strength</li><li>Up to 46% more reverse thrust over competing propeller designs</li><li>Patented Dual Geometry blade design for 4-blade performance without speed loss</li><li>Industry-leading MasterGuard lifetime warranty on hub kits</li><li>Five-step Ultra-Coat powder coating for superior corrosion and impact resistance</li><li>Global distribution network with dealer and OEM partnerships worldwide</li></ul><p>Whether you're chasing top speed on a bass boat, pulling watersports tubes on a pontoon, or navigating offshore swells on a center console, Turning Point Propellers delivers the engineering depth and product breadth to keep your boat performing at its best.</p>

Part Number

11500300
06/20/2036 11:38 PM
Sale Price

$44.94

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Turning Point Propellers MasterGuard 500 Series Installation Kit 503 is designed for marine engines with 4.25" or 4.75" gearcases, providing a revolutionary propeller hub system that saves boaters up to 33% on replacement propeller costs. This innovative kit allows you to purchase only the prop housing after a strike, while reusing the durable hub assembly.

Key Features:

  • Lifetime warranty coverage for engines under 200hp with aluminum or stainless steel props, and engines 200+hp with aluminum props
  • Industry-leading warranty with no restrictions except extreme commercial use
  • One-piece construction featuring marine bronze with over-molded glass-filled nylon for exceptional durability
  • Fully reusable after a prop strike event
  • Enhanced lower unit protection to safeguard your outboard or sterndrive
  • Warranty coverage even if the propeller is destroyed (consumer normal use only)
  • Compatible with both aluminum and stainless steel propellers depending on engine horsepower

The MasterGuard system represents a long-term investment in propeller technology, offering peace of mind with the only lifetime warranty of its kind in the marine industry. The robust marine bronze core combined with engineered nylon provides optimal strength and longevity for years of reliable performance.

Products specifications

Model

503

Type

Series 500

Item arrived quickly, pack well, no drama.

FAST AND PROFESSIONAL

As expected. Fast delivery

Search didn't pull up the tire I wanted to order. I had to sign out and use google search.

When I noticed my shift collar was wearing out, I got on the computer and found Autoplicity having one reasonably priced and ordered one. It came in no time at all and is in the paint shop as I type. I ordered it on Christmas and had it before New Years. That's fast. And it's a new one, not used.

quick and easy had everything I needed in stock

great site

Easy to navigate website, great selection and prices.

"Lowest price I could find on the internet. They do what they say. Shipped promptly with UPS tracking no. sent by email. Would recommend.<br>"

Good so far

very good pricing.

You had a part I couldn't find elsewhere

Quick and Easy!

Good web store front. Makes Parts Geek look like the trainwreck it is.

price was great

i like what ive been reading on the reviews

Smooth process thus far

Great experience! I placed my order on Sunday and my programmer arrived on Thursday - with ground shipping. I unpacked the programmer and it functioned exactly as I had hoped. I will definitely consider purchasing from Autoplicity again!

Quick and easy

Just placed order; seems ok so far

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