Quote:
Originally Posted by Hellcat94
What is the difference between the W126 master cylinder PN: 0044300901 and 0044302601?
I'm trying to order one to fit it to a salvaged 1983 300SD brake booster, and I just need to know which will fit, and if they both fit, which is better.
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Physically, either one will bolt to the booster.
The earlier one has a 15/16" front circuit bore, the later one a 1" front circuit bore. The change in bore results in a difference in pedal feel & stroke.