MPA Electrical NM4143 Brake Master Cylinder

Brake Master Cylinder for Dodge Nitro and Jeep Liberty

Restore consistent brake pedal feel with this MPA Electrical brake master cylinder, part number NM4143. Built as a standard replacement for vehicles with front disc brakes, it is engineered for direct hydraulic performance on the 2007-2011 Dodge Nitro and 2008-2011 Jeep Liberty.

The MPA Electrical New with front disc brakes product line focuses on replacement brake hydraulics that are tested against OE specifications using controlled procedures and sample-based validation. NM4143 is supplied as a new aluminum master cylinder with a plastic reservoir, reservoir cap, gasket or seal, and DOT 3 fluid compatibility.

Key Features

• Brake master cylinder for 2007-2011 Dodge Nitro and 2008-2011 Jeep Liberty
• Standard replacement grade for brake hydraulic service
• 1.063-inch master cylinder bore diameter
• Aluminum master cylinder body with plastic reservoir
• Reservoir included with cap and gasket or seal
• DOT 3 brake fluid type
• Two mounting holes with 0.345-inch mounting hole diameter
• New condition, front disc brake application

Detailed Description

MPA Electrical NM4143 is a brake master cylinder designed for direct replacement on the Dodge Nitro and Jeep Liberty platforms listed above. It uses a 1.063-inch bore diameter and a two-hole mounting pattern to match the specified brake hydraulic setup. The aluminum housing and included reservoir support reliable fluid transfer for vehicles equipped with front disc brakes.

This part cross-references Mopar 068004467AA and 68004467AA for the same application. Use NM4143 when servicing a brake master cylinder on a 2007-2011 Dodge Nitro or 2008-2011 Jeep Liberty with front disc brakes.

What It Helps Fix

• Low or inconsistent brake pedal response
• Internal master cylinder fluid bypass
• Brake fluid leakage at the master cylinder body or seals
• Loss of hydraulic pressure in the brake system
• Brake warning symptoms related to master cylinder wear

Installation Notes and Tips

Verify the vehicle uses the listed front disc brake configuration before installation. Confirm bore size, mounting hole spacing, and reservoir style against the original unit. Bench bleeding the master cylinder before final installation helps remove trapped air and supports proper pedal feel after the system is reassembled.

Quality Assurance

MPA Electrical tests its brake master cylinders against OE specifications using proprietary processes and strict validation protocols to help ensure consistent braking performance out of the box. NM4143 is a new replacement part built for the listed Dodge Nitro and Jeep Liberty applications.