Raymarine Paddle Wheel Kit, For ST40, ST60, ST60 Plus, 365/470/750

Overview

The Raymarine R69015 is a replacement paddle wheel kit for Raymarine ST40, ST60, ST60 PLUS, 365, 470, and 750 speed transducers. It is used to service the moving wheel assembly that helps the transducer read speed through the water, making it a practical maintenance part for boats with older Raymarine instrument systems.

The kit includes the paddle wheel, a stainless axle, and rubber o-rings, so the common wear parts can be replaced together instead of changing the whole transducer assembly. It is a useful spare to keep on board or in the service kit, especially for vessels that spend time in fouling-prone water where paddle wheels can wear, seize, or lose sensitivity over time.

Key features

• Replacement paddle wheel kit for compatible Raymarine ST40, ST60, ST60 PLUS, 365, 470, and 750 speed transducers.
• Includes the paddle wheel, stainless axle, and rubber o-rings needed for a basic paddle wheel service.
• Helps address speed-through-water issues caused by a worn wheel, damaged axle, or tired o-rings.
• Suitable for routine instrument maintenance during haul-out, bottom cleaning, or transducer inspection.
• Small service part that is easy to store with other onboard electronics and instrument spares.

Compatibility and fit

This kit is intended for Raymarine speed transducers used with ST40, ST60, ST60 PLUS, 365, 470, and 750 systems. Before installation, match the existing transducer and instrument family to those listed models, especially on boats that have had electronics refits or partial instrument upgrades over the years.

Installation and maintenance

Service the paddle wheel following the normal removal and refit procedure for the vessel’s transducer. Clean away marine growth, inspect the transducer body, and confirm that the new wheel spins freely on the stainless axle before returning the sensor to use.

After installation, check the speed reading at low speed and during normal running conditions. A clean wheel and sound o-rings are important for consistent speed data on cruising boats, fishing boats, and sailboats that rely on speed-through-water for trim, navigation, and instrument calculations.

What’s included

• Paddle wheel
• Stainless axle
• Rubber o-rings

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