Water Pump Impeller - Mariner / Yamaha 40 HP 2 - Stroke (1990-1997) OEM# 47-99971M | WSM 700-440

Water Pump Impeller Mariner / Yamaha 40 Hp 2-Stroke OEM# 47-99971M

This WSM water pump impeller is a quality aftermarket replacement part designed for Yamaha 3 Cyl 2.638 Bore 40.

It replaces selected OEM reference numbers including 47-99971M, 6F5-44352-00-00, S18-3088 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 8 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 700-440
• Product: Water Pump Impeller
• OEM Reference: 47-99971M, 6F5-44352-00-00, S18-3088
• Application: Yamaha 3 Cyl 2.638 Bore 40

Product Fitment

This part is suitable for the following models:

• Yamaha 3 Cyl 2.638 Bore 40 – 1990
• Yamaha 3 Cyl 2.638 Bore 40 – 1991
• Yamaha 3 Cyl 2.638 Bore 40 – 1992
• Yamaha 3 Cyl 2.638 Bore 40 – 1993
• Yamaha 3 Cyl 2.638 Bore 40 – 1994
• Yamaha 3 Cyl 2.638 Bore 40 – 1995
• Yamaha 3 Cyl 2.638 Bore 40 – 1996
• Yamaha 3 Cyl 2.638 Bore 40 – 1997

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 Service Kit Yamaha 40 / 50 Hp 3 Cylinder 84-91 OEM# 18-3429 – 725-415
• Seal Water Pump Yamaha 40 - 60 Hp 4 Stroke OEM# 18-1828 – 770-123
• Connecting Rod Kit Yamaha 40 / 50 Hp 3 Cyl OEM# 6H4-11651-00-00 – 800-302
• Switch Tilt & Trim Yamaha 15 - 115 Hp 2 / 4-Stroke 95-21 OEM# 63D-82563-10-00 – 905-110

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