RD4 Diesel lift pump leaking on input shaft

They went through a couple style pumps and seal arrangements. Looks like you will have to make do or move up to the next style pump from sr. #4G9568 to 7J635 that used a different double seal. I believe all of them were a graphite packing.

Old Magnet, do you mean get a different pump or do you mean the the seals for the 4G9568-7J635 will work in my pump

That's a different pump.....still similar style....but uses different double seals and from what I can make out from the parts book the seal related parts are different dimensions and they are different part numbers.

May not get you out of the woods until parts availability was checked also.

That's a different pump.....still similar style....but uses different double seals and from what I can make out from the parts book the seal related parts are different dimensions and they are different part numbers.

May not get you out of the woods until parts availability was checked also.

Thanks Old Magnet, I think I will try making a new packings with some rope, and I will use a press to get that stuff packed tight, hopefully this will work, the old packing probably old, hard and drieded out, I appreciate your support😊

Pat, those leaded seals should still be available, I bought 2 from cat, last yr or the one before. Like $4 a piece.

KidNV, would you happen to have a part #, it isn't a later style pump like Old Magnet was talking about is it?

Pat, was just lookin it up.. 2A831 changed to 4B9051, then 5M6038. Got them from Foley Cat in KS in 05, for $2.47 ea. Their # is 620-792-5246. Steve or Mike

KidNV,
Are you sure they are all the same seal?.....cause the spring, seat and retainer numbers all change to. Might be close enough to give you something to work with though....price is right.