MPA Electrical NM4282 Brake Master Cylinder

Brake Master Cylinder for Cadillac CTS and STS

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built as a standard replacement for vehicles with front disc brakes, it is engineered for direct OE-style braking performance on select Cadillac CTS and Cadillac STS applications.

Part number NM4282 is a new aluminum master cylinder with an included reservoir, cap, and seal. It uses DOT 3 brake fluid and a 1.003-inch bore diameter to match the hydraulic requirements of the original system.

Key Features

• Brand: MPA Electrical
• Part number: NM4282
• Standard replacement brake master cylinder
• Aluminum master cylinder construction
• Reservoir, cap, and gasket/seal included
• 1.003-inch bore diameter
• Two mounting holes with 0.425-inch mounting hole diameter
• Uses DOT 3 brake fluid
• New with front disc brakes application

Product Details

MPA Electrical NM4282 is engineered to restore braking performance by matching OE specifications through tested manufacturing processes and strict quality protocols. This brake master cylinder is listed for 2009-2015 Cadillac CTS and 2009-2011 Cadillac STS models with front disc brakes, making it a direct-fit choice for owners searching for a Cadillac CTS brake master cylinder or Cadillac STS brake master cylinder replacement. The aluminum body helps provide a durable, OE-style hydraulic component for the brake system.

This part cross-references 20837870 and 20965430 for the same application.

What It Helps Solve

• Low or inconsistent brake pedal feel
• Internal master cylinder leakage
• Brake fluid loss at the hydraulic unit
• Reduced braking response from worn seals or bore wear
• Need for a replacement master cylinder on front disc brake Cadillac CTS or STS models

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, sensor, or brake pressure switch. Bleed the brake system thoroughly after installation and use only DOT 3 brake fluid. Inspect the reservoir, lines, and related hydraulic components for contamination or wear before returning the vehicle to service.

Quality Assurance

MPA Electrical tests each unit against OE specifications using proprietary processes and strict protocols to support consistent braking performance out of the box. Part number NM4282 is a new standard replacement brake master cylinder for select Cadillac CTS and Cadillac STS applications.