Max Prop
Automatic Feathering Propeller

Max-Prop Reconditioning Service

PYI Inc. has a full Max-Prop reconditioning service that is capable of repairing and reconditioning your Max-Prop. We can bring it back to life, whether normal wear and tear, a blade bent in half, or damage from corrosion, most damage can be repaired.


A 3 Blade Max-Prop before recondition process has started.

A 3 Blade Max-Prop before recondition process has started.


If your Max-Prop is out of balance it could be due to wear or a galvanic corrosion problem, causing the blades to wear thin. We can solve this, our Max-Prop reconditioning technician can either spot weld or re-sheet the entire blade to bring it back to tolerance and balance.


Damaged teeth on a blade.	- Teeth that have been repaired on a blade.

Damaged teeth on a blade              |            Teeth that have been repaired on a blade.


A worn propeller may also have fore and aft or rotational play in the blades that exceeds factory standards. This is caused by wear to the Spacer or central Conegear. To solve these problems a new Spacer or Conegear will be machined to fit your propeller and tighten up the play.


A cone gear getting repaired.

A cone gear getting repaired.


Another point of wear is the central Hub. This is typically caused from lack of maintenance or excessive use and abuse, this can also cause vibrations. If worn significantly we can replace the Hub to tighten up the propeller.

The last step in the Max-Prop reconditioning process is to balance and polish the prop. Your reconditioned propeller will look like new at a much lower cost.


A cone gear getting repaired.

A 3 Blade Max-Prop after we have completed the repairs.


Each propeller requires something different to repair and recondition, so it is impossible to establish a standardized cost estimate. Once received in our facility we will evaluate the propeller and provide a cost estimate, for your approval, before any work is completed. Please be sure to send us the entire propeller, including the hub from the shaft so we can get started as soon as the propeller arrives.

Keep your Max-Prop free of fouling

We now offer prop antifouling service. Once your Max-Prop has been reconditioned to a better than new state we'll go ahead and apply Velox Plus antifouling paint. Velox Plus is an antifouling paint developed specifically to protect propellers, stern drives, shafts, outdrives, struts, jet pumps and other metallic parts immersed in the water. A unique feature of Velox Plus is that it is not degraded by galvanic currents that are typically responsible for paint detachment. Using Velox Plus will keep your propeller clean, thus increasing fuel economy and boosting vessel performance. Save money and time by extending the periods between haulouts to clean your propeller and other metallic parts.


A Max-Prop with Velox Plus paint.

A 3 Blade Max-Prop with Velox Plus antifouling paint applied prior to being put together.



A Max-Prop with Velox Plus paint.

A 3 Blade Max-Prop after Velox Plus antifouling paint has been applied.


Get started!

Download PYI's Reconditioning Form.

Max-Prop Disassembly Videos

If you need help determining the pitch of your Max-Prop or want to see how it's disassembled then watch the videos below. As always if you still have questions feel free to call or email us, we'll be more than happy to answer any of your questions.

2 Blade Max-Prop Videos

3 Blade Max-Prop Videos