Funky master cylinder?

[GetMeMyStogie]

Hi, I took my MM in to replace the master cylinder which has been leaking all over the booster. Despite bending over and paying their massive markup, they tried two different MC's and neither was the right one :(

Is there something unique about the master cylinders in the MM? Is it not interchangeable with the MGM?

Fwiw, mine is a 2003 300eh.

[RF Overlord]

Tascaparts lists 2- one with and one without traction control.

[tbone]

I had the same problem with incorrect ones from Rock Auto and Raybestos. But the MasterPro with resovoir from O'Reilly is correct. Pricey at $150, although I work there part time for the insurance and I paid half that.