Just tore down the supercharger and water pump as part of a complete restoration of my R53. Opened up the water pump to see how it looked in there. Although the pump was not leaking, the seam gasket looks to be deformed in some spots and I'd like to replace it before re-assembly. I can't find just the gasket though; seems you have to buy the propeller side with the gasket for around $50. Is there a part number for the gasket or do I have to replace a perfectly good propeller side?

 

A new Gates pump is $76 from cockauto. IMO trying to swap out that gasket is chasing diminishing returns since the PTO drive side bearing behind the impeller is usually what ***** the bed.