Might be using the wrong number, use 4012070861
Yes, that’s the serial number and it’s the best way to look up parts and service for Volvo Penta. It will also alert you to any recalls and necessary product updates if the package has been registered. In this case the engine, transom plate (TSK) and drive haven’t been registered. I recommend that the owner contact a Volvo dealer and get this registered in their name. Then they will be notified of any important information.
The 2nd best way to search is the Product Number (3869155) this will bring up most parts and literature. This is also sometimes referred to as the Part Number.
The 3rd best way is to use the Product Designation (4.3GXi-BF) This method can cause issues because it can sometimes be sensitive to uppercase/lowercase, space/no-spaces and dash/no-dash.
Such as DPS drive is very different from the DP-S drive,