Turning Point Propellers 505 Hub Kit for 40-150 HP Outboards with 4.25 Inch Gearcase

The Turning Point Propellers 505 Hub Kit replaces the interchangeable rubber hub system inside a compatible aluminum or stainless propeller, allowing the propeller to be rebuilt and reused on the same engine rather than replaced outright. The kit is built around corrosion-resistant brass splines that transmit engine torque to the propeller while the surrounding hub material absorbs shock loads from shifting and impacts, protecting the gearcase and lower unit driveline from sudden shock damage.

This hub kit is sized for outboards in the 40 to 150 HP range that use a 4.25 inch gearcase, and it carries a lifetime warranty on many engine applications. It ships as a single hub kit unit intended for installation by a marine technician or an experienced DIYer replacing a worn propeller hub. Because the hub kit is matched to a specific propeller bore and spline configuration, confirming the propeller model before ordering ensures the correct fit.

Specifications

• Brand: Turning Point Propellers
• Manufacturer Part Number: 11500500
• Compatible Outboard HP Range: 40 to 150 HP outboards
• Gearcase Size: 4.25 inch gearcase
• Material: Corrosion-resistant brass splines
• Item Dimensions: 7 x 3 x 3 inches
• Package Dimensions: 6.81 x 2.99 x 2.91 inches
• Weight: 2 pounds
• Number of Items: 1
• UPC: 652480200540
• Warranty: Lifetime warranty on many engine applications

Fitment

• 40 to 150 HP outboards with a 4.25 inch gearcase

Frequently Asked Questions

What engines does the Turning Point 505 hub kit fit? It is designed for 40 to 150 HP outboards that use a 4.25 inch gearcase, matching the propeller bore size to that gearcase range.

What is included in the Turning Point 505 hub kit? The kit contains one complete hub kit assembly with corrosion-resistant brass splines, sold as a single item for rebuilding one propeller.

What material are the splines made from? The hub kit uses corrosion-resistant brass splines, chosen to withstand ongoing exposure to water and marine conditions while transmitting engine torque to the propeller.

Does the 505 hub kit come with a warranty? Yes, the Turning Point 505 hub kit carries a lifetime warranty on many engine applications.

How big is the Turning Point 505 hub kit? Item dimensions are 7 x 3 x 3 inches and it weighs 2 pounds; packaged dimensions are 6.81 x 2.99 x 2.91 inches.

Can I install this hub kit myself? The 505 hub kit is designed for straightforward installation into a compatible propeller, though matching the correct bore and spline configuration is important before installing it.

Is the 505 hub kit a genuine Turning Point Propellers part? Yes, part number 11500500 is a genuine Turning Point Propellers hub kit, not a generic aftermarket substitute.

Why would I need a hub kit instead of a new propeller? A hub kit such as the Turning Point 505 lets you replace the worn shock-absorbing hub inside a propeller rather than buying an entirely new propeller, as long as the propeller blades are still in good condition.

Will the 505 hub kit fit any 40-150 HP outboard regardless of brand? The 505 hub kit is sized for the 4.25 inch gearcase used across the 40 to 150 HP outboard range; confirming your propeller's bore and gearcase size against this spec is recommended before ordering.

How many hub kits come in one order of part number 11500500? One order of the Turning Point 505 hub kit (part number 11500500) includes a single hub kit unit.