Based on what I've read about the clutch MC replacement options, I shipped an e21 clutch MC (part number 21 52 1 150 449) to the mechanics doing the work on the '74. They are telling me they can't get it to fit. I can't find any definitive write-up about adapting this MC for use on the coupe. Is there such a thread?
e21 Clutch Master Cylinder
- Thread starter halboyles
- Start date
It could be as simple as unthreading and swapping your eyebolt onto the new master? But I seem to be an expert on sending people off in the wrong direction...
All clutch masters are now clocked to the right about 25 degrees. On my e9 I had to tap the edge of the booster mount opening in the firewall to get it to sit flat, then bend the alu clutch pipe a little bit. It should work.
Baikal Bimmer
Well-Known Member
Worked on my 72’
I use the e12 Version- did you reverse the e21 numbers?
L6 Clutch Master Cylinder
1979 - 1981 528i Sedan E12
Part Number: 21521156004
Review this product | See All Fitments
CHECK FITMENT
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L6 Clutch Master Cylinder
1979 - 1981 528i Sedan E12
Part Number: 21521156004
Review this product | See All Fitments
CHECK FITMENT
TEXT A PRODUCT LINK
Mesa in CA sells complete kit with lines and fittings to adapt e12 clutch master
Mesa Performance Parts...BMW Clutch Hydraulics
We specialize in parts and accessories for BMW and Porsche, and have items for Mercedes and Audi available.We offer monthly specials for our net customers, and feature online catalogs with secure online ordering. We have real time chat, an interactive bulletin...
www.mesaperformance.com
Yes indeed! It looks like that part cross references to the e21, 5 series, .... It must have become a generic part somewhere along the way.
I called Jim at Mesa Performance and he is sending one directly to the shop for installation. We had a great conversation about the 35 Bavarias he has owned and racing them. He is a great resource for our vintage BMWs.
BMW Parts and Porsche Parts..Mesaperformance.com
We specialize in parts and accessories for BMW and Porsche, and have items for Mercedes available. We offer monthly specials and catalogs with secure online ordering.CLICK HERE
Thanks to all for your insights!
The clutch master fit all late 70s/80s BMWs.