Attention: TDR Forum Junkies 
Picked up a new fuel filter today from Cummins p#FS 19579-E and the design has changed. The former filter had a flat top and the edges were rolled down the sides along the filter media. The top stuck out form the sides about 1/16 of an inch. The filter now has the same flat top but the edges are not rolled down the side it is flat and the edge of the top of the filter sticks out about an 1/8 of an inch. I have the billet filter cap and I had to convince the top of the filter to go into the filter cap, never had to do that before. Used to I just dropped the filter in and tightened the cap. Now I have to cram the filter into the cap and push down on it to get it to tighten up.
For those that still have the oem plastic cap I am not sure how it will fit into the cap or if it will. I asked 4 times if the filter was the correct one and was told yes that they are all the same. Oh and they do not come in a box no more, they are packaged in clear plastic. The bottom of the filter is the same and has not changed. Thought I would give a heads up on this for those that have not seen one yet.
For those that still have the oem plastic cap I am not sure how it will fit into the cap or if it will. I asked 4 times if the filter was the correct one and was told yes that they are all the same. Oh and they do not come in a box no more, they are packaged in clear plastic. The bottom of the filter is the same and has not changed. Thought I would give a heads up on this for those that have not seen one yet.
