Raymarine Paddle Wheel Replacement Kit

Overview

The Raymarine TA900 is a paddle wheel replacement kit for maintaining the speed-sensing paddle wheel assembly on compatible Raymarine and Tacktick transducer installations. It is a small service part intended for boats that rely on a paddle wheel transducer for through-water speed data, where a worn, damaged, or fouled wheel can affect readings at the instrument display.

This kit is useful during routine haul-out service, transducer maintenance, or troubleshooting when the existing paddle wheel no longer turns freely. The packaged size is approximately 1 in high by 4 in wide by 5 in long, with a listed weight of about 0.05 lb, so it is easy to keep onboard as a spare without taking up meaningful locker space.

Key features

• Replacement paddle wheel kit for compatible Raymarine and Tacktick speed transducer setups.
• Helps restore proper paddle wheel movement when the original wheel is worn, damaged, or not spinning freely.
• Practical spare for sailboats, cruising boats, and fishing boats that depend on through-water speed readings.
• Compact package, approximately 1 in x 4 in x 5 in, with a listed weight of about 0.05 lb.
• Useful during scheduled transducer cleaning, haul-out work, or pre-season electronics checks.

Installation and setup

Fitment should be checked against the existing transducer before installation, especially on boats with older instrument systems or mixed Raymarine and Tacktick equipment. The part is intended for the paddle wheel area of the speed transducer, not for display, network, or power wiring replacement.

For best results, inspect the transducer body and surrounding area while the paddle wheel is being replaced. Marine growth, sand, old antifouling paint, or a bent axle area can keep a new wheel from turning correctly, so the housing should be clean before the boat goes back into service.

Use cases on board

This kit makes sense for owners who want to keep speed-through-water readings usable without replacing a full transducer assembly when only the paddle wheel service part is needed. It is especially relevant for sailing instruments, trip logging, current comparison, and boat-speed trimming where a free-spinning paddle wheel matters.