MPA Electrical NM55153 Brake Master Cylinder

Brake Master Cylinder for Hyundai and Kia

The MPA Electrical NM55153 brake master cylinder is a standard replacement hydraulic component for vehicles with front disc brakes. It is built with an aluminum master cylinder body, plastic reservoir, and included cap to help restore consistent brake pedal response on the listed Hyundai and Kia applications.

Compatible with 1999-2005 Hyundai Sonata, 2002-2005 Hyundai XG350, 2001-2005 Kia Magentis, 2001-2003 Kia Optima, and 2001 Hyundai XG300, this NM55153 master cylinder is specified for DOT 3 or DOT 4 brake fluid service.

Key Features

• Standard replacement brake master cylinder for front disc brake applications
• Aluminum master cylinder construction with plastic reservoir
• 1-inch bore diameter for hydraulic brake system operation
• Two mounting holes with 0.34-inch mounting hole diameter
• Reservoir and master cylinder cap included
• Fluid type specification: DOT 3 or DOT 4
• New condition part from MPA Electrical

Product Details

MPA Electrical NM55153 is engineered to restore braking performance by matching OE specifications through tested manufacturing processes and controlled inspection protocols. The brand line, “New with front disc brakes,” identifies the application focus for vehicles equipped with front disc brake systems, including Hyundai Sonata, Hyundai XG350, Kia Magentis, and Kia Optima models listed above. This part cross-references 5851038304 and 5851039300 for the same application.

Common Brake Issues It May Address

• Low or inconsistent brake pedal feel
• Internal hydraulic leakage in the master cylinder
• Brake fluid loss at the master cylinder assembly
• Uneven or delayed brake response
• Brake warning symptoms related to master cylinder wear

Installation Notes

Before installation, verify vehicle fitment by year, make, model, and brake configuration. This master cylinder does not include mounting hardware, brake booster, push rod, gasket or seal, sensor, or brake pressure switch. Bench bleeding is recommended before final installation, and the brake system should be filled with the correct DOT 3 or DOT 4 fluid and checked for leaks after service.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict inspection protocols to support consistent braking performance out of the box. The NM55153 is a new replacement part built for the listed Hyundai and Kia applications.