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Review on πŸ”§ Professional Grade Brake Master Cylinder - Raybestos MC390255 by Sam Bhushan

Revainrating 5 out of 5

So far it works as well or even better than the original.

The OEM master cylinder has done 100,000 miles and the fluid looked dirty. So I backflushed to pump out the fluid and replaced the master cylinder with this professional Raybestos MC390255 master cylinder. I wasn't concerned about pumping on the bench but using a vacuum and then the old "pump and hold brakes" method. The pedal is solid and doesn't leak.

Pros
  • Great for me
Cons
  • No instructions