Brake Booster Diameter
Thread Starter
3rd Gear
Joined: Jun 2014
Posts: 3
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Brake Booster Diameter
Anybody know the diameter of the booster on the C6, years 2009-2013? After talking to a local shop there seem to be two versions (OEM numbers 25845638 and 20758337), the difference being the "heavy duty braking" option. Also, the 207 is only offered on the Z06 and ZR1, while the 258 works on everything. If somebody with a C6 could help me out that'd be great. Thanks!
Safety Car
Joined: Jan 2004
Posts: 4,974
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From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
I don't know the size, but the difference in the boosters is the feel, or amount of assist. Essentially, a firmer pedal for the Z cars.
However, the standard booster will easily work the the bigger brakes and feels fine.
However, the standard booster will easily work the the bigger brakes and feels fine.
