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The bumper for my 1986 528e arrived today and it is spotless! Thank you so much for the quick shipment and for the care you put into the preparation and delivery. You were very detailed as to the condition before I purchased it and it arrived in even better condition than I expected. I will be in touch for needs as they arrive in the future. Much appreciated. -- KP

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Tech Article

BMW ZF 3HP-22 Transmission

Last Updated: 08/30/2017
Parts Group: Transmission
This article discusses the ZF 3HP-22 transmission for the 1982 and 1984 E28. If you're not here for the technical analysis but would rather buy a used unit from us, guaranteed to work and fit, then please select the link below:

A client with a 1979 BMW E23 630CS contacted me, looking for part internal to this transmission. His speedo drive gear has issues and he doesn't just want to plug the hole, but fix it the right way. I love that.

It'd be nice to help a 630CS be complete ... super rare and cool cars.

Sadly I've sold my last 3HP22 and I don't have another one, or any parts ... I've checked with the US ZF distributor and also struck out there.

So, what are good options? That transmission got superseded by the ZF 4HP-22 which showed up in 1984 on BMWs, so we can expect to find ZF 3HP-22 transmissions on the automatics through 1983 which to me means the E21 (320i), E28 (528e, 633i), E24 (630 CS, 633CSi), E23 (733i) ... those are quite a few options.

And I doubt BMW was the only company that used this transmission, since ZF is an independent company.

I could start hunting for a transmission but essentially I'd want to sell the whole thing, not just the speedo gear. So I asked the prospect if that's in his budget, buying an entire transmission, assuming I can find one. Then again, another option might be to upgrade to an 4HP22. The bell housing should be the same. In the long run that would help keep the car on the road. One important question is: is this a concours show car that he'd like to keep totally original ...?
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