MPA Electrical NM4205 Brake Master Cylinder

Brake Master Cylinder for PT Cruiser

Restore consistent brake pedal response with this MPA Electrical brake master cylinder for the 2005-2009 Chrysler PT Cruiser with front disc brakes. Built as a standard replacement, NM4205 is engineered to match OE specifications for dependable hydraulic performance in daily driving.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacements for vehicles equipped with front disc brake systems. This NM4205 master cylinder is built for the Chrysler PT Cruiser application and is tested against OE references to help deliver consistent braking performance right out of the box.

Key Features

• Fits 2005-2009 Chrysler PT Cruiser, N/A, with front disc brakes
• Brake master cylinder for brake hydraulic service
• Aluminum master cylinder body with plastic reservoir
• 0.87 in. bore diameter for OE-style hydraulic output
• Reservoir included with cap and gasket/seal included
• Standard replacement grade
• Uses DOT 3 brake fluid
• Mounting hole quantity: 2
• New condition

Detailed Description

MPA Electrical NM4205 is a brake master cylinder built for the 2005, 2006, 2007, 2008, and 2009 Chrysler PT Cruiser with front disc brakes. It is intended to restore hydraulic pressure at the master cylinder and support normal brake pedal feel in vehicles that need a direct replacement for the original unit. The aluminum housing, plastic reservoir, and 0.87-inch bore diameter align with standard replacement requirements for this application. This part cross-references 5142503AA for the same application.

What It Helps Address

• Low or inconsistent brake pedal response
• Internal master cylinder leakage
• Brake fluid loss at the reservoir or seals
• Soft pedal feel caused by hydraulic wear
• Brake performance decline in a PT Cruiser with front disc brakes

Installation Notes and Tips

Verify the vehicle is a 2005-2009 Chrysler PT Cruiser with front disc brakes before installation. Transfer only the components required by the vehicle configuration, and use DOT 3 brake fluid during service. Bleed the brake system thoroughly after installation to remove trapped air and confirm a firm pedal. Mounting hardware, brake booster, push rod, sensor, and brake pressure switch are not included.

Quality Assurance

MPA Electrical states that its brake master cylinders are tested against OE specifications using proprietary processes and strict protocols. That validation helps ensure the NM4205 is ready for service as a direct replacement for the Chrysler PT Cruiser brake hydraulic system.