240D IP Elements

[I6dzl]

I have my 240D running a two tank setup on alt fuels. I had some questionable veg oil that I now suspect may have had some water in it. When I switch back to diesel, I am finding I have a significant power loss. I am going to install a fuel pressure gauge at the IP inlet, but I suspect I have scored the plungers and barrels.

I read something in another thread about some original pumps not having hardened plunger and barrel elements. My friend who works at a Bosch fuel shop who said he has seen this as well. I am going to have him price four new stock elements for me as I am not after anything but stock performance.

Are there any companies that make elements for these pumps? I am having a hard time finding any info on parts for these pumps. Sometimes aftermarket stuff can be cheaper and still good quality. Can anyone point me in the direction of pricing some of these parts, even if a slight performance upgrade? My friend will balance the pump for me at their shop.