MPA Electrical NM4041 Brake Master Cylinder

Brake Master Cylinder for Ford, Lincoln, and Mercury

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM4041. It is a standard replacement unit with a 1-inch bore, aluminum construction, and an included reservoir and cap for service on select Ford, Lincoln, and Mercury vehicles with front disc brakes.

Compatible with 2001-2011 Ford Crown Victoria, 2004-2011 Lincoln Town Car, 2001-2011 Mercury Grand Marquis, and 2003-2004 Mercury Marauder, this NM4041 master cylinder is built for direct brake hydraulic replacement on supported applications.

Key Features

• Standard replacement brake master cylinder
• 1-inch master cylinder bore diameter
• Aluminum master cylinder body
• Reservoir included
• Master cylinder cap included
• Uses DOT 3 brake fluid
• Two mounting holes with 0.415-inch mounting hole diameter
• New condition

Product Details

MPA Electrical NM4041 is engineered to restore braking performance by replacing a worn or leaking master cylinder in the brake hydraulic system. The unit is tested against OE specifications using controlled inspection and validation processes based on OE sample references, helping deliver consistent brake pedal feel and hydraulic operation after installation. This part number NM4041 is a direct-fit style replacement for front disc brake applications on the Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, and Mercury Marauder listed above.

This part cross-references 1W1Z2140BA and 6W1Z2140BA for the same application.

What It Helps Fix

• Low or sinking brake pedal
• Brake fluid leakage from the master cylinder
• Uneven or inconsistent hydraulic pressure
• Delayed brake response during pedal application
• Brake performance loss caused by internal seal wear

Installation Notes

Verify vehicle fitment by year, make, model, and front disc brake configuration before installation. This master cylinder does not include mounting hardware, gasket or seal, brake booster, push rod, sensor, or brake pressure switch. Bench bleeding the master cylinder before installation and using clean DOT 3 brake fluid will help support proper hydraulic priming and pedal feel.

Quality Assurance

MPA Electrical uses OE sample references and strict testing protocols to validate brake master cylinders against OE specifications before release. That process supports consistent hydraulic performance and dependable replacement quality for NM4041.