MPA Electrical NM55348 Brake Master Cylinder

Brake Master Cylinder for Acura and Honda

Restore consistent brake pedal response with this new MPA Electrical brake master cylinder, part number NM55348. It is a standard replacement for select Acura MDX, Acura ZDX, and Honda Odyssey models with front disc brakes, built to match OE specifications for dependable hydraulic performance.

Key Features

• Standard replacement brake master cylinder for hydraulic brake repair
• Aluminum master cylinder body with plastic reservoir
• Reservoir, cap, and gasket/seal included
• 0.879 in. bore diameter for OE-style brake system operation
• Uses DOT 3 or DOT 4 brake fluid
• Fits 2007-2013 Acura MDX, 2010-2013 Acura ZDX, and 2005-2010 Honda Odyssey with front disc brakes

Product Details

MPA Electrical NM55348 is engineered to restore braking performance by replacing a worn or leaking master cylinder with a new hydraulic unit. The aluminum construction helps provide a durable foundation, while the included plastic reservoir, cap, and seal support a complete service-ready assembly. MPA Electrical tests each unit against OE specifications using controlled processes and sample-based validation to help ensure consistent brake pedal feel and hydraulic output.

This part number NM55348 is a direct-fit style replacement for vehicles in the Acura MDX, Acura ZDX, and Honda Odyssey lineup that use front disc brakes. It cross-references 46101SHJ305 and 46101STXA01 for the same application.

Common Problems This Part Can Address

• Low or sinking brake pedal caused by internal master cylinder wear
• Brake fluid leakage around the master cylinder body or reservoir area
• Uneven or inconsistent hydraulic pressure in the brake system
• Reduced braking response after master cylinder seal failure
• Brake warning symptoms related to hydraulic performance loss

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and brake configuration before installation. This master cylinder does not include mounting hardware, brake booster, push rod, or brake pressure switch. Bench bleeding the master cylinder before installation helps remove trapped air and supports proper pedal feel after the system is filled with DOT 3 or DOT 4 brake fluid.

Quality Assurance

MPA Electrical uses OE sample references and strict testing protocols to check each brake master cylinder against original specifications before release. That process supports consistent hydraulic performance and reliable operation on compatible Acura MDX, Acura ZDX, and Honda Odyssey applications.