THERMOSTAT, CYLINDER HEAD COVER GASKET & COLLAR (genuine)

for YAMAHA OUTBOARD

6, 8 HP , 2 STROKE

6C, 6D, 8C

SERIAL NO STARTING WITH

6G1, 6N0, 6M8, 6H6, 6H8, 6M9, 6CMH, 6CWH, 6MSH, 6DMH,

8CMH, 8CWH, 8MSH, 8MH

1984 & newer

Replaces Yamaha :

Thermostat part number : 6E5-12411-02

Gasket part number: 6G1-11193-A1

Yamaha genuine collar: 90387-22m50

Why Buy from SSI Marine:

Workshop-tested aftermarket & OEM-spec parts

Fast UK dispatch (same-day before 1 PM Mon–Fri)

Tracked 24-hour UK delivery

UK stock – collection available from Leigh (Manchester)

Technical support available

Buyer Responsibility:
Please confirm compatibility with your engine model and serial number before purchase.
If unsure, contact us — our technical team will be happy to help.

For general guidance on choosing the correct outboard parts, visit our help page:
https://ssimarine.co.uk/blogs/news/blogs-news-how-to-order-the-correct-outboard-parts

6HP 8HP Thermostat, Head Cover Gasket & Collar Kit for Yamaha 2-Stroke Outboards – Replaces 6E5-12411-02