Fuel Pump Diaphragm – Yamaha 25 HP & 30 HP 3-Cylinder 2-Stroke Outboards

Quality marine-grade aftermarket fuel pump diaphragm for selected Yamaha 25 HP and 30 HP 3-cylinder 2-stroke outboard engines.

Designed to replace a worn or damaged fuel pump diaphragm, helping restore consistent fuel delivery, reliable starting and smooth engine operation.

Fitment – Yamaha Outboards

HP	Engine Configuration	Selected Years
25 HP	3-Cylinder, 2-Stroke	1997–2002
30 HP	3-Cylinder, 2-Stroke	1987–2002

Selected model references supplied for identification:

25 HP: 25MHV3, 25MLHV3, 25MLHW3, 25MLHX3, 25MSH3A, 25MSHA3, 25MSHV3, 25MSHW3, 25MSHX3, 25MSHY3, 25MSHZ3
30 HP: 30EL, 30ES, 30L, 30MLH, 30MSH, 30S and selected C30 variants

Important: The supplied model references include market-specific Yamaha designations. They have not all been verified as UK/European applications.

This diaphragm is intended only for engines using the corresponding fuel pump assembly. Not every 25 HP or 30 HP Yamaha within these years uses the same diaphragm.

Replaces Yamaha Part Numbers

6J8-24471-00
6J8-24471-00-00

Aftermarket Cross-Reference:

Sierra 18-7841

OEM and aftermarket references are provided for identification purposes only.

Product Details

Condition: New
Product: Fuel Pump Diaphragm
Quality: Marine-Grade Aftermarket
Application: Yamaha 25 HP / 30 HP Outboards
Engine Type: 2-Stroke
Cylinder Configuration: 3-Cylinder
Main Reference: 6J8-24471-00

Please note: This listing is for a fuel pump diaphragm, not a complete fuel pump assembly.

Please check the product photographs for the exact components supplied.

Important – Check Compatibility

Please confirm your Yamaha engine model, year, serial number and original fuel pump diaphragm part number before ordering.

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

If unsure, contact SSI Marine with your engine details before purchasing.

Why Buy From SSI Marine?

Workshop-tested aftermarket and genuine parts
Over 10,000 genuine and aftermarket items stocked
Same-day dispatch before 1 PM Monday–Friday
Royal Mail Tracked 24
UK stock – collection from Leigh, Greater Manchester
Technical support from experienced marine engineers

Buyer Responsibility: Please confirm compatibility before purchasing.

25–30 HP Yamaha Outboard Fuel Pump Diaphragm 2-Stroke 3-Cylinder 6J8-24471-00