Water Pump Kit Complete - Mariner / Yamaha 20-30 HP (1984-1987, 1989-1997) OEM# 18-3427 | WSM 750-411

Water Pump Kit Complete Mariner / Yamaha 20 - 30 Hp OEM# 18-3427

This WSM water pump kit complete is a quality aftermarket replacement part designed for Yamaha 2 Cyl 2.638 Bore 25 and 3 other compatible models.

It replaces selected OEM reference numbers including 18-3427, 47-95611M, 689-W0078-05-00, 689-W0078-06-00, 689-W0078-A6-00, 81242M 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 18 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 750-411
• Product: Water Pump Kit Complete
• OEM Reference: 18-3427, 47-95611M, 689-W0078-05-00, 689-W0078-06-00, 689-W0078-A6-00, 81242M
• Application: Yamaha 2 Cyl 2.638 Bore 25 and 3 other compatible models

Product Fitment

This part is suitable for the following models:

• Yamaha 2 Cyl 2.638 Bore 25 – 1990
• Yamaha 2 Cyl 2.638 Bore 25 – 1991
• Yamaha 2 Cyl 2.638 Bore 25 – 1992
• Yamaha 2 Cyl 2.638 Bore 25 – 1993
• Yamaha 2 Cyl 2.638 Bore 25 – 1994
• Yamaha 2 Cyl 2.638 Bore 25 – 1995
• Yamaha 2 Cyl 2.638 Bore 25 – 1996
• Yamaha 2 Cyl 2.638 Bore 25 – 1997
• Yamaha 2 Cyl 2.835 Bore 25 – 1985
• Yamaha 2 Cyl 2.835 Bore 25 – 1986
• Yamaha 2 Cyl 2.835 Bore 25 – 1987
• Yamaha 2 Cyl 2.835 Bore 30 – 1984
• Yamaha 2 Cyl 2.835 Bore 30 – 1985
• Yamaha 2 Cyl 2.835 Bore 30 – 1986
• Yamaha 3 Cyl 2.373 Bore 30 – 1989
• Yamaha 3 Cyl 2.373 Bore 30 – 1990
• Yamaha 3 Cyl 2.373 Bore 30 – 1991
• Yamaha 3 Cyl 2.373 Bore 30 – 1992

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 Mariner / Yamaha 20 - 30 Hp OEM# 47-84797M – 700-410
• Oil Seal Yamaha 20 - 30 Hp 84-22 OEM# 552-23 – 552-23
• Rectifier Mercury / Mariner / Yamaha 8 - 70 Hp OEM# 664-81970-60-00 – 365-1930
• Flywheel Key Yamaha 650 - 1300 90-14 / 9.9 - 30 Hp 84-21 OEM# 90280-05013-00 – 010-481-02

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