Hey BMW Z3 owners!
If you're noticing a spongy brake pedal or any leaks under the hood, it might be time for a new master cylinder.
This one is a direct replacement for the 1997-2000 Z3 with the L6-2.8L engine, specifically the models equipped with DSC.
It's a brand new unit from AM High Quality Autoparts, so you're not getting some sketchy rebuilt part with who-knows-what inside.
The manufacturer part number is 34-31-6-754-048, but it also crosses over to M630901, NM55673, and 34-31-6-752-542, so double-check those against your old one.
This cylinder has four ports with a thread size of M12x1.
The bore diameters are 23.8mm and 20.6mm, which are the exact specs your Z3 needs for proper brake bias.
It's made from premium materials and has a nice, clean finish.
Best of all?
It comes with a 1-year warranty, so you can install it with confidence.
Don't mess around with brake parts—get a quality replacement that's going to keep you safe.
This is the one you want.
