I have an RD4 SN: 4G4587 that had one of the lifters for the fuel pump break in half. I was wondering if anyone could help me with a part number or any place that I could get one. The part numbers i have for the Pump housing is 2a3310 and the Cam is 2a3869 if that helps. I have tried looking on the forums and online with no luck. Thanks

Bill Walter on this forum should be able to fix you up.

"Neil" wrote:

Any idea what the cause was? Concerned that if you fit another in there, it might break if there's still a vulnerability.

Not sure, It had a crack from the top going down the threads, so maybe somewhere along the way it was over-tightened and slowly broke. It was running good the other day, then the next I had hardly any power so thought maybe a plunger was stuck; but when I was checking them this one was free to move by hand. It did have a broken piece that looked like it was smashed down but not sure how that could happen in the housing the spring was fine and scarring or cuts in the housing. I can only guess wear from over time. This was only the second day it had been started in the last few years from when I got it though.

Part number is 2A5578. Same lifter used in all the forged body pumps. Should not be a problem to find. Is kind of rare to break one.

"Old wrote:

Part number is 2A5578. Same lifter used in all the forged body pumps. Should not be a problem to find. Is kind of rare to break one.

I figured it was a rare thing, I couldn't find anyone else with the same problem on here. I guess I was kind of blind in not finding the Part number. I looked through here for hours and read the post you had for this part number at least twice but it just didn't click that that was what I was looking for. Anyway, I very much appreciate it.