I'm having difficulty finding a replacement fuel filter #450 903 056 for a 1974 911 2.7L. Suggestions for a source would be appreciated.

 

I saw a thread on Pelican Parts about your filter. It seems the factory changedthe CIS fitler setup and dropped your specific filter for a replacement (Bosch 0-045-905-016). The filters are different - not adirect swap.

An enterprising lad found a way to get around it here:

http://forums.pelicanparts.com/showt...ht=450+903+056


Somewhere in that same thread, somebody provides the part numbers of the bits and pieces needed to "upgrade" your system.