Water Pump Service Kit - Yamaha 25-40 HP 4 - Stroke (2000-2021) OEM# 18-3440 | WSM 725-415-02

Water Pump Service Kit Yamaha 25 - 40 Hp 4-Stroke 00-21 OEM# 18-3440

This WSM water pump service kit is a quality aftermarket replacement part designed for Yamaha 2 Cyl 4 Stroke 25 and 3 other compatible models.

It replaces selected OEM reference numbers including 18-3440, 66T-W0078-00-00, 66T-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 43 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 725-415-02
• Product: Water Pump Service Kit
• OEM Reference: 18-3440, 66T-W0078-00-00, 66T-W0078-01-00
• Application: Yamaha 2 Cyl 4 Stroke 25 and 3 other compatible models

Product Fitment

This part is suitable for the following models:

• Yamaha 2 Cyl 4 Stroke 25 – 2001
• Yamaha 2 Cyl 4 Stroke 25 – 2002
• Yamaha 2 Cyl 4 Stroke 25 – 2003
• Yamaha 2 Cyl 4 Stroke 25 – 2004
• Yamaha 2 Cyl 4 Stroke 25 – 2005
• Yamaha 2 Cyl 4 Stroke 25 – 2006
• Yamaha 2 Cyl 4 Stroke 25 – 2007
• Yamaha 2 Cyl 4 Stroke 25 – 2008
• Yamaha 2 Cyl 4 Stroke 25 – 2009
• Yamaha 2 Cyl 4 Stroke 25 – 2010
• Yamaha 2 Cyl 4 Stroke 25 – 2011
• Yamaha 2 Cyl 4 Stroke 25 – 2012
• Yamaha 2 Cyl 4 Stroke 25 – 2013
• Yamaha 2 Cyl 4 Stroke 25 – 2014
• Yamaha 2 Cyl 4 Stroke 25 – 2015
• Yamaha 2 Cyl 4 Stroke 25 – 2016
• Yamaha 2 Cyl 4 Stroke 25 – 2017
• Yamaha 2 Cyl 4 Stroke 25 – 2018
• Yamaha 2 Cyl 4 Stroke 25 – 2019
• Yamaha 2 Cyl 4 Stroke 25 – 2020
• Yamaha 2 Cyl 4 Stroke 25 – 2021
• Yamaha 3 Cyl 4 Stroke 30 – 2001
• Yamaha 3 Cyl 4 Stroke 30 – 2002
• Yamaha 3 Cyl 4 Stroke 30 – 2003
• Yamaha 3 Cyl 4 Stroke 30 – 2004
• Yamaha 3 Cyl 4 Stroke 30 – 2005
• Yamaha 3 Cyl 4 Stroke 30 – 2006
• Yamaha 3 Cyl 4 Stroke 40 – 2000
• Yamaha 3 Cyl 4 Stroke 40 – 2001
• Yamaha 3 Cyl 4 Stroke 40 – 2002
• Yamaha 3 Cyl 4 Stroke 40 – 2003
• Yamaha 3 Cyl 4 Stroke 40 – 2004
• Yamaha 3 Cyl 4 Stroke 40 – 2005
• Yamaha 3 Cyl 4 Stroke 40 – 2006
• Yamaha 3 Cyl 4 Stroke 40 – 2007
• Yamaha 3 Cyl 4 Stroke 40 – 2008
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2002
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2003
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2004
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2005
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2006
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2007
• Yamaha 3 Cyl Jet 4 Stroke 40 – 2008

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:

• Water Pump Impeller Yamaha 25 - 60 Hp OEM# 18-3068 – 700-415
• Thermostat Honda / Johnson / Mercury / Nissan / Yamaha 4 - 225 Hp 4-Stroke OEM# 18-43175 – 775-205
• Belt Timing Yamaha 25 - 40 Hp 4-Stroke 99-08 OEM# 18-15135 – 830-085
• Belt Timing Yamaha 25 - 70 Hp 4-Stroke 05-22 OEM# 18-15130 – 830-095

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