Mercury 72961 Water Pump Ball Bearing

Mercury-MerCruiser 30-72961 Water Pump Ball Bearing

The Mercury-MerCruiser 30-72961 Water Pump Ball Bearing is a genuine OEM replacement bearing for select Mercury and MerCruiser engine applications. This bearing is used as a replacement crankcase and sea water pump ball bearing where part number 30-72961 is specified by the Mercury-MerCruiser parts diagram or service manual.

This ball bearing fits select 3.5-9.8 HP Mercury outboards and MerCruiser sterndrive applications with belt-driven water pumps. Replacing a worn or damaged bearing during water pump or crankcase service helps support proper pump operation and reliable engine cooling system performance.

Product Features:

• Genuine OEM Mercury-MerCruiser ball bearing
• Used as a replacement crankcase and sea water pump bearing where specified
• Fits select 3.5-9.8 HP Mercury outboards
• Fits select MerCruiser sterndrive applications with belt-driven water pumps
• Helps replace a worn, noisy, damaged, or failed water pump bearing
• Direct replacement where part number 30-72961 is specified
• Built to Mercury Marine fit, function, and performance standards

Product Details:

• Brand: Mercury-MerCruiser
• Manufacturer Part Number: 30-72961
• Part Type: Ball Bearing
• OEM Description: Water Pump Ball Bearing
• System: Crankcase / sea water pump
• Application: Select Mercury outboards and MerCruiser sterndrive engines

Fits Select Applications:

• Mercury 3.5 HP outboards where specified
• Mercury 4 HP outboards where specified
• Mercury 4.5 HP outboards where specified
• Mercury 5 HP outboards where specified
• Mercury 6 HP outboards where specified
• Mercury 7.5 HP outboards where specified
• Mercury 9.8 HP outboards where specified
• MerCruiser sterndrive engines with belt-driven water pumps where specified

Replaces / Interchange:

• Sierra Marine 18-1398

Service Note: Follow your Mercury or MerCruiser service manual for bearing removal, installation, pump inspection, seal replacement, lubrication requirements, torque specifications, and final cooling system checks.

Fitment Note: Bearing fitment should be verified by engine model, horsepower, serial number, pump type, crankcase or sea water pump configuration, parts diagram, and existing bearing part number before ordering. Please confirm this water pump ball bearing is correct for your Mercury or MerCruiser application before purchasing.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov