Water Pump Kit Complete - Mariner / Yamaha 20-30 HP (1984-1985) OEM# 18-3426 | WSM 750-410

Water Pump Kit Complete Mariner / Yamaha 20 - 30 Hp OEM# 18-3426

This WSM water pump kit complete is a quality aftermarket replacement part designed for Yamaha 2 Cyl 2.835 Bore 25 and 1 other compatible model.

It replaces selected OEM reference numbers including 18-3426, 42431M, 689-W0078-A4-00, 97793M, 97793T 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 4 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 750-410
• Product: Water Pump Kit Complete
• OEM Reference: 18-3426, 42431M, 689-W0078-A4-00, 97793M, 97793T
• Application: Yamaha 2 Cyl 2.835 Bore 25 and 1 other compatible model

Product Fitment

This part is suitable for the following models:

• Yamaha 2 Cyl 2.835 Bore 25 – 1984
• Yamaha 2 Cyl 2.835 Bore 25 – 1985
• Yamaha 2 Cyl 2.835 Bore 30 – 1984
• Yamaha 2 Cyl 2.835 Bore 30 – 1985

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
• Piston Clips Yamaha 25 - 85 Hp / 500 OEM# 688-11634-00-00 – 400-20
• Gasket Base Mariner / Yamaha 20 - 30 Hp / 500 84-97 OEM# 27-84775 – 511-16
• O-Ring Crankshaft Yamaha 9.9 - 50 Hp / 500 / 650 84-21 OEM# 93210-57M09-00 – 527-81

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