Electrical System | Yamaha Outboard

CDI Unit 9369585540P

The 9369585540P CDI Unit is a replacement ignition module used on Yamaha and Mercury 2-cylinder 2-stroke outboards. This unit controls ignition timing and spark delivery, ensuring reliable starting and smooth engine performance.

Fitment Overview

This CDI unit replaces multiple Yamaha and Mercury ignition modules, including 695-85540-10-00, 695-85540-11-00, 695-85540-12-00, 43077M, and 43077T. These part numbers are used across small horsepower 2-cylinder outboards.

Compatibility

This ignition module is used across multiple model years depending on ignition system configuration. Always confirm using your original CDI number or engine diagram.

Fits These Serial Ranges

This CDI unit does not follow a single serial break and is used across multiple Yamaha and Mercury 2-cylinder ignition systems.

Important: Match your existing CDI number to one of the cross references below to confirm correct fitment.

Part Numbers and Cross References

What This Part Is Used For

The CDI (Capacitor Discharge Ignition) unit stores and releases electrical energy to fire the spark plugs at the correct time. It is a critical component in the ignition system for proper engine operation.

• Controls ignition timing
• Delivers spark to ignition coils
• Ensures reliable starting
• Supports smooth engine performance

A faulty CDI unit can cause no spark, intermittent spark, misfires, or engine shutdown.

FAQ

What engines does this CDI fit?
It fits Yamaha and Mercury 2-cylinder 2-stroke outboards in the 9.9HP to 25HP range.

How do I confirm fitment?
Match your existing CDI part number to one of the cross references listed above.

Is this a Mercury switch box?
Yes, this unit replaces Mercury switch box numbers such as 43077M and 43077T.

What are signs of a bad CDI?
No spark, weak spark, intermittent misfire, or engine not starting.

Searchable Part Numbers

9369585540P, 695-85540-10-00, 695-85540-11-00, 695-85540-12-00, 117-695-11, 17-69511, 18-5131, 43077M, 43077T, 69450M