I need a circuit card for my QL BP900, but cannot find it. Schematic says the part number should be 41100658, how would I find it to order it?

The part number 41100658 has been changed to 21281780.

These are still available as of today, but once they are sold out (from Volvo Penta), they will be going NLA from Volvo Penta.

Volvo Penta sold the QL line to a company in Sweden called Side Power and Side Power does not seem to be willing to support the old bow thrusters and such.