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240K Coupe Brake booster / master cylinder

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Can some one tell me what size brake booster / master cylinder came out on a original '73 Coupe,

I was looking at mine today, and the booster is small, 5 inches by the looks, with a 3/4 master cylinder.





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this is the original one.... I have it on my 73 sedan as well, part # 47210 - R3000

many of us change it to the bigger master of the c210, but now adays all old enthusiast go back to it. searching even for

faulty ones , cause it makes the car look stock.

to make sure I ll give some mesurements

diameter 122 mm

width 86 mm

short distance between fixing bolts 88 mm

long distance between fixing bolts 96 mm

distance between the front bolts 68 mm

Edited by skyc110

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