Master Cylinder replacement on 2001 Mazda Tribute

My husband has a 2001 Mazda Tribute. It has 120,000 miles on it. We recently had his oil change in his car two weeks ago and were told that his Master Cylinder has just started leaking. They quoted us $500-700 to replace it. Does that sound about right or should we get another quote? We go to Meineke and so far their prices have been reasonable for stuff that we needed to get done on our cars.

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1 answer 2 comments
It appears to be about $100+ higher than I would expect, but I checked it as a 2wd and a 4 cylinder. But, it does give you an idea of cost.
Have you been adding brake fluid, or was it low?
Is that something they do when you get an oil change? If not, then no. But, we were also told that he has to get his brakes done, too. I think just the front ones.
It is something that should be checked during normal oil service.
If the front brakes need to be replaced, the brake fluid should not be full. When the brake pad is nearing it's minimum thickness the fluid in the master cylinder will be low.

I would like to perform our check over on the vehicle.