Gear Oil Drain Plug Gasket Set for Suzuki Outboards

Premium-quality aftermarket gear oil drain / fill plug gasket set for selected Suzuki 4-stroke outboard engines.

Suitable for a wide range of Suzuki portable and small outboards from 2 HP through to 30 HP, including selected DF2.5, DF4A, DF5A, DF6A, DF8A, DF9.9A, DF9.9B, DF15A, DF20A, DF25A and DF30A models.

Ideal for replacing the sealing gaskets when changing the lower unit / gearbox oil.

Fits Selected Suzuki Outboards

2 HP / 2.5 HP

DF2 / DF2.5
2006–2011
2012 onwards

4 HP / 5 HP / 6 HP

DF4A / DF5A / DF6A
2017 onwards

8 HP / 9.9 HP

DF8A / DF9.9A
2010 onwards

9.9 HP / 15 HP / 20 HP

DF9.9B / DF15A / DF20A
2013 onwards

25 HP / 30 HP

DF25A / DF30A
2015 onwards

Replaces Suzuki Part Numbers

59178-97J00
59178-97J00-000
5917897J00
59178-87J00
59178-87J00-000
5917887J00

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

Product Features

Gear oil plug gasket set
Gearbox drain plug gasket
Gear oil drain screw seal
Gear oil fill / level plug gasket
Lower unit oil plug gasket
For selected Suzuki outboards
2 HP
2.5 HP
4 HP
5 HP
6 HP
8 HP
9.9 HP
15 HP
20 HP
25 HP
30 HP
4 Stroke applications
Marine-grade quality aftermarket part
Manufactured to OEM specifications
New
UK stock

Recommended Replacement During Gear Oil Service

We recommend inspecting and replacing the sealing gaskets when carrying out a gearbox / lower unit oil change.

A damaged, flattened or deteriorated gasket can prevent the drain or level plug from sealing correctly.

Replacing the gaskets during routine servicing is a simple and inexpensive way of helping maintain a proper seal.

Important – Please Check Compatibility

Please do not order by horsepower or appearance alone.

Suzuki has used different drain plug and gasket arrangements across its outboard range.

Before purchasing, please check:

Exact Suzuki engine model
Production year
Engine serial number
Existing gasket
Original Suzuki part number

For the safest identification, check that your engine requires 59178-97J00 / 59178-87J00.

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

Suzuki Outboard 2 HP 2.5 HP 4 HP 5 HP 6 HP 8 HP 9.9 HP 15 HP 20 HP 25 HP 30 HP Gear Oil Drain Plug Gasket Set 59178-97J00