Here’s a Shopify-ready item description that includes engine usage and stays careful about fitment:

YANMAR 124223-42070 Piece

Maintain dependable raw water pump performance with the YANMAR 124223-42070 Piece, a genuine Yanmar replacement component used in select marine diesel engine applications. This part is associated with the cooling sea water pump assembly and is commonly referenced by suppliers as a small internal pump component used in compatible Yanmar engines. Supplier listings commonly associate it with 3GM30, 3GM30C, 3GM30F, and 3GM30FV engines, while another marine parts supplier also lists fitment for 2GM20F, 3HM, and 3HMF applications.

Key Features

• Genuine Yanmar replacement part
• OEM part number 124223-42070
• Used in select raw water / cooling sea water pump assemblies
• Supports proper pump operation and cooling system service
• Suitable for maintenance, repair, or replacement of worn pump components

Compatibility & Fitment
This item is used on select Yanmar marine diesel engines. Commonly listed engine applications include:

• 3GM30
• 3GM30C
• 3GM30F
• 3GM30FV

Additional supplier references also associate this part with:

• 2GM20F
• 3HM
• 3HMF

Because supplier listings are not fully identical, buyers should verify fitment by engine model, serial number, and official parts diagram before ordering. The Yanmar 3GM30 parts catalog also shows this part family within the cooling sea water pump section, which supports its pump-related application.

Maintenance Tips
Inspect raw water pump components during routine service for wear, leakage, and seal deterioration. When replacing small internal pump parts, it is good practice to inspect the impeller, seals, gaskets, and shaft-related components at the same time to help maintain reliable cooling performance. This is especially important in saltwater service.