MPA Electrical NM52735A Brake Master Cylinder

Brake Master Cylinder for Toyota Sienna

Restore hydraulic brake performance with this MPA Electrical brake master cylinder for the 1998-2003 Toyota Sienna with front disc brakes. Part number NM52735A is a standard replacement unit built with an aluminum body and a 1-inch bore for direct brake system service.

MPA Electrical’s New with front disc brakes product line focuses on replacement parts that are tested against OE specifications using sample-based validation and controlled inspection processes. This NM52735A master cylinder is built for consistent pedal response and dependable brake fluid pressure delivery in the Toyota Sienna application.

• Brand: MPA Electrical
• Part number: NM52735A
• Standard replacement brake master cylinder
• 1-inch master cylinder bore diameter
• Aluminum master cylinder construction
• Gasket or seal included
• Two mounting holes
• Fits 1998-2003 Toyota Sienna, new with front disc brakes

Detailed Product Overview

This brake master cylinder is engineered for the Toyota Sienna brake hydraulic system and is listed for 1998-2003 models with front disc brakes. The aluminum housing helps keep weight down while maintaining the structural requirements of a hydraulic brake component. NM52735A is a direct replacement choice for drivers addressing worn internal seals, inconsistent pedal feel, or loss of hydraulic pressure in the master cylinder.

This part cross-references Toyota OE numbers 4720108010 and 4720108020 for the same application.

Common Brake Issues It Can Address

• Low or sinking brake pedal caused by internal master cylinder wear
• Uneven or delayed hydraulic pressure delivery
• Brake fluid leakage at the master cylinder seals
• Reduced braking response in a 1998-2003 Toyota Sienna
• Brake system performance loss after master cylinder failure

Installation Notes and Tips

Before installation, confirm the vehicle is a 1998-2003 Toyota Sienna with front disc brakes and verify the bore size and mounting pattern match the original unit. This master cylinder does not include a reservoir, cap, booster, push rod, sensor, pressure switch, mounting bracket, or mounting hardware, so reuse or source related components as needed based on the vehicle setup.

After installation, bleed the brake system thoroughly and inspect all hydraulic connections for leaks. Always follow the vehicle service procedure for brake fluid type, bench bleeding, and final pedal verification.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict inspection protocols to help deliver consistent braking performance out of the box. NM52735A is a new standard replacement part built for the Toyota Sienna brake hydraulic application.