From the book · BrakesBrake master cylinder
- Range
- $450 – $1,100
Lower-cost shop to brand dealer · part only, at a store $65–$230
- What fails first
- The seals inside it wear, not the pedal and not the lines.
- Your free check
- Engine running, in Park. Hold steady, firm pressure on the pedal for
thirty seconds. If it slowly sinks with no fluid leaking anywhere, the seals inside are the likely cause.
- Ask the shop
- "Did you bench-bleed the new one before it went on?"
- They'll add on
- A brake fluid flush, $100–$280 on its own. The system is already open
and has to be bled for this job, so ask what it costs as part of it, not on top of it.