The DFC brake master cylinder for 2009–2010 Chevrolet Cobalt is a replacement hydraulic component intended to restore brake-line pressure and pedal feel in the specified Cobalt models. Offered as a service part, it replaces aging or leaking master-cylinder elements so the braking system can regain proper hydraulic performance and deliver predictable stopping control for those applications.
DFC 09-10 Chevrolet Cobalt Brake Master Cylinder