maxiblue 352 #1 Posted December 13, 2020 I had to replace ny fuel pump on my D-250, so I went to the service manual only to find that there was no infor on doing that.And yes there are mechanical fuel pumps available for the D-250, well any ways I went at it on my own 2 bolts and it was put kind of like doing a chevy V-8 it was that easy. Pump must run off the cam for there no push rod. Just wanted to let you know. Most engine parts I find over seas, have new fuel pumps cost about $44 each that includes shipping from the factory. Share this post Link to post Share on other sites