Fuel Filter - DeLorean Parts USA Modern replacement fuel filter, tried and tested - has the correct outlet on the bottom (not a captive nut). Supplied with new washers - the bottom seals with PTFE tape. Fuel Filter - DeLorean Parts USA Fuel filter - DeLorean Motor Company The Fuel Filter P/N 100523 is located inside the left rear "leg" of the frame, near the transmission. It is mounted by a circular bracket that encloses the filter and is in turn bolted to the frame rail with two M6 bolts and lock nuts. The tightness of the bracket is adjusted by an M4 through-bolt and nylock nut.