Water Pump Service Kit - Yamaha 30 / 40 HP 4 - Stroke (2008-2022) OEM# 18-3490 | WSM 725-421

Water Pump Service Kit Yamaha 30 / 40 Hp 4-Stroke OEM# 18-3490

This WSM water pump service kit is a quality aftermarket replacement part designed for Yamaha 3 Cyl 4 Stroke 30 and 2 other compatible models.

It replaces selected OEM reference numbers including 18-3490, 6BG-W0078-00-00, 6BG-W0078-01-00 and is suitable for service, repair and rebuild work.

Key Features

• Quality aftermarket replacement part from WSM
• Engineered for dependable fit, function and service life
• Designed for marine and powersports repair and maintenance
• Compatible with 40 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 725-421
• Product: Water Pump Service Kit
• OEM Reference: 18-3490, 6BG-W0078-00-00, 6BG-W0078-01-00
• Application: Yamaha 3 Cyl 4 Stroke 30 and 2 other compatible models

Product Fitment

This part is suitable for the following models:

• Yamaha 3 Cyl 4 Stroke 30 – 2013
• Yamaha 3 Cyl 4 Stroke 30 – 2014
• Yamaha 3 Cyl 4 Stroke 30 – 2015
• Yamaha 3 Cyl 4 Stroke 30 – 2016
• Yamaha 3 Cyl 4 Stroke 30 – 2017
• Yamaha 3 Cyl 4 Stroke 30 – 2018
• Yamaha 3 Cyl 4 Stroke 30 – 2019
• Yamaha 3 Cyl 4 Stroke 30 – 2020
• Yamaha 3 Cyl 4 Stroke 30 – 2021
• Yamaha 3 Cyl 4 Stroke 30 – 2022
• Yamaha 3 Cyl 4 Stroke 40 – 2008
• Yamaha 3 Cyl 4 Stroke 40 – 2009
• Yamaha 3 Cyl 4 Stroke 40 – 2010
• Yamaha 3 Cyl 4 Stroke 40 – 2011
• Yamaha 3 Cyl 4 Stroke 40 – 2012
• Yamaha 3 Cyl 4 Stroke 40 – 2013
• Yamaha 3 Cyl 4 Stroke 40 – 2014
• Yamaha 3 Cyl 4 Stroke 40 – 2015
• Yamaha 3 Cyl 4 Stroke 40 – 2016
• Yamaha 3 Cyl 4 Stroke 40 – 2017
• Yamaha 3 Cyl 4 Stroke 40 – 2018
• Yamaha 3 Cyl 4 Stroke 40 – 2019
• Yamaha 3 Cyl 4 Stroke 40 – 2020
• Yamaha 3 Cyl 4 Stroke 40 – 2021
• Yamaha 3 Cyl 4 Stroke 40 – 2022
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2008
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2009
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2010
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2011
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2012
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2013
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2014
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2015
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2016
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2017
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2018
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2019
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2020
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2021
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2022

Why Buy WSM

WSM is a trusted manufacturer of aftermarket marine and powersports parts, known for dependable quality, strong fitment coverage and workshop-ready replacement components.

You May Also Need

Browse related parts for compatible models:

• Fuel Injector Yamaha 30 / 40 Hp 4-Stroke 08-21 OEM# 6BG-13761-00-00 – 610-304
• Water Pump Impeller Yamaha 25 - 60 Hp OEM# 18-3068 – 700-415
• Water Pump Housing Yamaha 25 - 40 Hp 4-Stroke OEM# 66T-44311-00-00 – 710-416
• Water Pump Service Kit Yamaha 25 - 40 Hp 4-Stroke 00-21 OEM# 18-3440 – 725-415-02

Please use the fitment guide, OEM references and images to confirm this is the correct part before ordering.