Fuel Pump elements alternative P/N

[Kylemontanaro]

E31 850i from 1992 with the M70 engine of course.
I'm planning to replace the fuel pumps (including the submerged hoses) as it looks like in 31 years, no-one has ever been in the fuel tank yet. Can anyone throw a few Part Numbers at me?
Sreten mentioned Quantum HFP-439 pumps on his YT channel.
Ebay on the other hand keeps pointing me towards pumps for the E34 5er, are the pump elements themselves really identical between the E34 and E31?

Thanks everyone

[henryc]

V12Throttle have complete assemblies -
https://e31-v12throttle.com/products...-pump-assembly

/Henry

[Kylemontanaro]

Thanks I've seen that already but sadly I'm in Europe.

[dragon850]

You may luck out and not have cracks in the top cap once you put everything back in. The plastic molded lines are not pliable anymore and will shatter if you are not careful. So if you are going to do a rebuild, ONLY use these bosch pumps(link below). If you attempt to install some aftermarket pump like Hiflow or Qauntum you will soon melt the carrier at the ground pin because they will draw too much amperage and will heat that pin up until it melts the plastic around it and leak. I have rebuilt over 200 of these units before manufacturing new ones so this is from my experience. You will for sure need the side rubber shocks and the lower filter screen sock. Also just a thought, after buying the pumps, shocks, sock you will be in it for over $400 and may save a little money over a new unit however you will still have the old crack prone carrier and hours of your time into it, not sure if it's forth the effort. Here is the link to the correct bosh pumps: https://www.fcpeuro.com/.../bmw-electric-fuel-pump-750il...

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Thanks I've seen that already but sadly I'm in Europe.

I will also send you a private message.