MPA Electrical NM55361 Brake Master Cylinder

Brake Master Cylinder for Lexus GS300

Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM55361. It is a standard replacement for 1996-1997 Lexus GS300 models with front disc brakes and is built with an aluminum body, plastic reservoir, and DOT 3 fluid compatibility.

MPA Electrical’s New with front disc brakes product line focuses on direct-fit brake hydraulic replacement parts for vehicles that need OE-style braking performance restored. This NM55361 master cylinder is tested against OE specifications using controlled inspection processes to help deliver reliable operation after installation.

Key Features

• Fits 1996-1997 Lexus GS300, front disc brakes
• Part number NM55361
• Standard replacement brake master cylinder
• Aluminum master cylinder construction with plastic reservoir
• 1.064 in. bore diameter
• Reservoir included with cap and gasket/seal included
• 3 mounting holes with 0.356 in. mounting hole diameter
• DOT 3 brake fluid type
• Interchanges with 4720130640

Detailed Description

This brake master cylinder is engineered for 1996-1997 Lexus GS300 applications with front disc brakes, making it a direct-fit hydraulic replacement for restoring brake system pressure. The aluminum master cylinder body and included reservoir are matched to standard replacement requirements, while the 1.064-inch bore diameter supports proper hydraulic output for the vehicle’s braking system. If you are replacing a worn or leaking master cylinder on a Lexus GS300, NM55361 provides the core components needed for a clean brake hydraulic repair.

Part number NM55361 is also a practical reference when cross-checking brake master cylinder listings, and it cross-references 4720130640 for the same application.

What It Helps Fix

• Low or sinking brake pedal feel
• Brake fluid leakage at the master cylinder
• Uneven or inconsistent hydraulic brake pressure
• Brake warning symptoms caused by internal seal wear
• Reduced braking response on 1996-1997 Lexus GS300 models

Installation Notes and Tips

Before installation, confirm the vehicle is a 1996-1997 Lexus GS300 with front disc brakes and verify the bore size, mounting pattern, and reservoir configuration. Bench bleeding the master cylinder before final installation helps remove trapped air from the hydraulic circuit. Use DOT 3 brake fluid only, and inspect brake lines, fittings, and the booster interface for wear or contamination during replacement.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary inspection processes and strict protocols. That approach helps ensure consistent braking performance right out of the box for the Lexus GS300 application.