Beck/Arnley Brake Master Cylinder P/N:072-9821
Turn pedal effort into the hydraulic pressure your brakes rely on with the BECK ARNLEY brake master cylinder, part number 072-9949. This complete new assembly is designed to match OE form, fit and function, and it installs as a direct replacement on the 2003-2005 Mazda 6. See the Buyer's Guide tab for engine-specific details.
The master cylinder converts force from the brake pedal into hydraulic pressure and sends it through the brake lines to the wheels. Signs that the master cylinder on your 2003-2005 Mazda 6 may need replacing include a soft or sinking pedal, brake fluid leaking at the cylinder or reservoir, or a brake warning light. These symptoms can have other causes, so diagnose the brake system before you replace parts. After installation, bleed the brake system as directed by the vehicle's service information.
Interchange: 18M2610 · 147583878 · 13045217 · M630431 · GJ6F4340ZA · GJ6F4340ZR0A · MC142447 · MC142448
This part cross-references / interchanges with the following part numbers:
What vehicle does the Beck/Arnley 072-9949 fit?
It is listed for the 2003-2005 Mazda 6. See the Buyer's Guide tab for engine-specific details.
What's involved in replacing this brake master cylinder?
The brake lines are disconnected, the old unit is removed, and the new cylinder is installed before the brake system is bled. Follow the vehicle's service information for the exact procedure and torque values.
Does it come with a reservoir and sensor?
Beck/Arnley provides the reservoir and sensor where they apply to the application. Compare the new unit with your original before installing.
Which part numbers does the 072-9949 replace?
It is listed as an interchange for 18M2610, 147583878, 13045217, M630431, GJ6F4340ZA, GJ6F4340ZR0A, MC142447 and MC142448.
What are signs a brake master cylinder may be failing?
Warning signs include a soft or sinking pedal, fluid leaking at the cylinder, or a brake warning light. Other brake faults cause similar symptoms, so diagnose the system before replacing parts.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.