MPA Electrical NM4208 Brake Master Cylinder

Brake Master Cylinder for Saturn Ion

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built for 2003-2007 Saturn Ion models with front disc brakes, Part Number NM4208 is a standard replacement unit made with a cast iron body and a 0.872-inch bore for direct hydraulic performance.

MPA Electrical’s New with front disc brakes product line focuses on OE-style replacement parts that are tested against original specifications. This NM4208 master cylinder is engineered for dependable brake hydraulic operation on Saturn Ion applications, including 2003, 2004, 2005, 2006, and 2007 models.

Key Features

• Fits 2003-2007 Saturn Ion, front disc brakes
• Part Number NM4208 for easy catalog matching
• Cast iron master cylinder construction
• 0.872-inch bore diameter
• Standard replacement grade
• Gasket or seal included
• Uses DOT 3 brake fluid
• Two mounting holes with 0.336-inch mounting hole diameter
• New product condition

Product Details

This brake master cylinder is built to restore hydraulic braking performance by converting pedal force into brake pressure for the vehicle’s front disc brake system. It does not include the reservoir, brake booster, push rod, mounting hardware, sensor, or brake pressure switch. The cast iron housing and OE-based testing process support consistent fit and function for Saturn Ion brake service. This part cross-references GM OE numbers 22706459 and 22713090 for the same application.

Common Brake Issues It May Address

• Low or inconsistent brake pedal feel
• Internal master cylinder leakage
• Brake fluid loss at the hydraulic unit
• Reduced braking response after master cylinder wear
• Need for replacement during brake system repair

Installation Notes and Tips

Before installation, verify the vehicle is a 2003-2007 Saturn Ion with front disc brakes and confirm the bore size, mounting pattern, and fluid specification. Bench bleeding is recommended before final installation to help remove trapped air from the hydraulic circuit. Transfer any required external components from the original system as needed, since this unit is supplied without a reservoir, booster, push rod, or mounting hardware.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using controlled procedures and sample-based validation from its OE reference library. That process supports consistent hydraulic performance for Saturn Ion brake service right out of the box.