OEM Dodge Challenger Brake Master Cylinder

Dodge Challenger Brake Master Cylinder Parts and Q&A

• Master Cylinder
  68048551AC
  Q: How to Remove the Brake Master Cylinder on Dodge Challenger?

  A:

  Before removing the brake master cylinder, open the vacuum in the brakes by pedaling the brakes about 4 or 5 times with the engine switched off. Take out the negative connector from the battery post. To reach the master cylinder, open the cover in the cowl area. Cleans all of the brake fluid reservoir and master cylinder with Mopar(R) Brake Parts Cleaner or an alternative. Remove the brake fluid level sensor from the wiring harness connector in the master cylinder brake fluid reservoir. Cut the connection between the master cylinder and both primary and secondary brake tubes and insert sealing plugs in the exposed ports at each end. Always clean the master cylinder and the booster before removing the master cylinder, so no dirt enters the booster. Remove both nuts that hold the master cylinder to the power Brake Booster, then pull it out of the system straight. Whenever you take out the master cylinder, replace the vacuum seal after removing it and use care when doing so.
• Master Cylinder
  68048548AA
  Q: How to install a Brake Master Cylinder on Dodge Challenger?

  A:

  You should completely bleed the master cylinder before you install it. A new vacuum seal (1) needs to be put on the master cylinder. Fit the new vacuum seal (1) carefully onto the rear of the master cylinder (2) so that it fits tightly in its place. Place the master cylinder (3) over the studs of the power Brake Booster, so the push rod of the booster matches up with the cylinder's piston. Screw the two mounting nuts for the master cylinder (2) to their stop points and then tighten them to 15 Nm (133 in. lbs.). Insert the primary and secondary brake tubes into the master cylinder's primary and secondary ports and secure them with length to 20 Nm (177 in. lbs.). Connect the other end of the wiring harness connector (4) to the brake fluid level sensor (2) in the brake fluid reservoir (1) and then correctly connect the negative Battery Cable (2) to the battery post. Make sure to carefully add new, clean Mopar(R) Brake Fluid or an alternative, to the reservoir (1) in the master cylinder. Installing the access panel in the cowl area comes last. Check that your brake pedal isn't too loose (i.e., easy to push) before proceeding; if it is, bleed the entire brake system and check for leaks. Testing of the brakes should be done during a road test.