Engine Oil Drain Plug / Sump Plug Gasket for Yamaha Outboards

Premium-quality aftermarket engine oil drain plug gasket / sump plug washer for a wide range of Yamaha 4-stroke outboard engines.

Designed to provide a reliable seal around the engine oil drain / sump plug and ideal for replacement during routine engine oil changes and servicing.

Suitable for selected Yamaha applications using OEM reference:

90430-14M09

Fits Yamaha Outboards

Suitable for a wide range of Yamaha 4-stroke outboard engines using engine oil drain plug gasket:

90430-14M09

This gasket is used across numerous Yamaha outboard models and horsepower ranges.

Because Yamaha has produced many different engine generations and configurations, we strongly recommend checking the exact engine model, serial number or original gasket part number before ordering.

Replaces Yamaha Part Numbers

90430-14M09
90430-14M09-00
9043014M09
9043014M0900

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

Product Features

Engine oil drain plug gasket
Sump plug gasket
Sump plug washer
Engine oil drain washer
Oil pan drain plug gasket
For selected Yamaha outboards
4-stroke applications
Marine-grade quality aftermarket part
Manufactured to OEM specifications
Designed as a replacement for the corresponding OEM application
Helps provide a reliable seal around the drain plug
Ideal for routine engine oil servicing
New
UK stock

Important – ENGINE OIL Drain Plug Gasket

This gasket is for the ENGINE OIL / SUMP drain plug.

It should not be confused with the gearbox / lower unit gear oil drain plug gasket.

When carrying out a full outboard service, please remember that the engine oil drain plug and gearbox oil drain/fill plugs may require different sealing gaskets.

Recommended Replacement During Oil Service

We recommend inspecting and replacing the sump plug gasket when carrying out an engine oil change.

The gasket can become compressed or damaged after use. Replacing it during routine servicing helps maintain a reliable seal around the engine oil drain plug and reduces the risk of oil seepage.

Important – Please Check Compatibility

Please do not order by appearance alone.

Yamaha has produced many different 4-stroke outboard models and generations, and different drain plug gaskets may be used.

Before purchasing, please check:

Engine is Yamaha
Engine is 4 Stroke
Exact engine model
Production year
Engine serial number
Existing sump plug gasket
Original Yamaha part number

For the safest identification, confirm that your engine requires:

90430-14M09

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

If you are unsure, please send us your engine model and serial number before purchasing and our technical team will be happy to check compatibility.

Why Buy From SSI Marine?

Marine-grade aftermarket & OEM-spec parts
Workshop-tested products
More than 10 years supplying outboard parts
UK stock
Same working day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
Technical support from experienced outboard specialists
Collection available from Leigh, Greater Manchester
Workshop open Monday–Friday, 9 AM–5 PM

Yamaha Outboard 4 Stroke Engine Oil Drain Sump Plug Gasket Washer 90430-14M09