190e fuel pump

I have an 1985 190e that needs a fuel pump. The problem is that there are 2 types listed for that car and I cant find out wich one I need. They are preety expensive and I dont want to order the wrong one. They have one listed for chassis number -f132823 and one for f132824. I have no idea what that means. The only chassis numbers I know are body 201.024 and engine 102.985. My VIN # is WDBDA24C1FF106105 if that helps any. If anyone can shed some light on this for me it would be greatly appreciated. Thanks, spc martin

Yours is the first one, which represents the last 7 digits in your vin#. the F106105 is before the F132823 which you listed. I sell that pump for $182.00 new.