High-quality marine-grade aftermarket CDI unit / ignition module for selected Mariner 40 HP outboard engines.

Designed as a direct replacement for the original CDI where the part number and engine application match.

Fitment

Please check your original CDI part number before ordering, as different ignition units were used across 40 HP models.

Replaces Mariner Part Numbers

OEM part numbers are used for identification and reference purposes only.

Please diagnose the engine fault before purchasing.

CDI / ignition problems can have similar symptoms to faults with other ignition or electrical components.

Electrical parts that have been fitted or installed cannot be returned unless faulty.

If you are unsure, please contact SSI Marine before purchase with your:

We will be happy to help check compatibility.

It is the buyer's responsibility to confirm compatibility with the engine model and serial number before purchase.

If the part looks the same as yours, this does not always mean it is the correct part for your outboard.