Water Pump Impeller - Mercury 20 HP 2 Cyl (1970-1979) OEM# 47-56780 | WSM 700-203

Water Pump Impeller Mercury 20 Hp 2 Cyl OEM# 47-56780

This WSM water pump impeller is a quality aftermarket replacement part designed for Mercury 2 Cyl 2.565 Bore Cross Flow 20.

It replaces selected OEM reference numbers including 47-56780, 47-65958, 47-89982 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 10 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 700-203
• Product: Water Pump Impeller
• OEM Reference: 47-56780, 47-65958, 47-89982
• Application: Mercury 2 Cyl 2.565 Bore Cross Flow 20

Product Fitment

This part is suitable for the following models:

• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1970
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1971
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1972
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1973
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1974
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1975
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1976
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1977
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1978
• Mercury 2 Cyl 2.565 Bore Cross Flow 20 – 1979

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:

• Ignition Coil Mercury / Mariner 6 - 300 Hp 72-07 OEM# 184-0001 – 376-5186
• Gasket Carburetor Mercury / Mariner 20 - 45 Hp 73-97 OEM# 27-75791 – 516-10
• Bearing Needles Mercury / Mariner 18 - 50 Hp OEM# 29-20063 – 010-126-27
• Starter Solenoid Evinrude/Mercury/Mariner/Nissan/Yamaha 8 - 300 / 700 - 1300 00-22 OEM# 3H8760400 – 004-125

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