MPA Electrical 1001-2118M Disc Brake Pad Set - Rear

Rear Brake Pads for Subaru WRX and WRX STI

MPA Electrical Quality-Built Premium Semi-Metallic Brake Pads are built for rear brake service on select Subaru performance sedans. This set is engineered for 2024-2026 Subaru WRX rear applications and 2018-2021 Subaru WRX STI rear applications, with a friction formula focused on restoring consistent stopping performance.

Key Features

• Quality-Built Premium Semi-Metallic Brake Pads for rear axle service
• Application-specific friction compound for direct-fit replacement use
• Copper-free formulation for 2025 compliance
• Low brake dust and quiet operation
• Pad shims included for added noise control
• Abutment clips included
• Integrally molded friction material attachment
• Standard replacement grade
• New condition

Product Line Details

The Quality-Built Premium Brake Pads line is focused on vehicle-specific friction formulas rather than one universal compound. For Subaru WRX and Subaru WRX STI rear brake service, that means the pad material is matched to the application to help restore like-new braking feel across a wide temperature range. Part number 1001-2118M is part of that line and is built for straightforward rear brake pad replacement.

Detailed Description

These rear disc brake pad sets are made for drivers servicing a Subaru WRX or Subaru WRX STI and looking for a standard replacement pad with modern friction materials. The copper-free semi-metallic formula is engineered for dependable braking performance in everyday driving and changing thermal conditions, while the included shims help reduce noise during operation. Part number 1001-2118M is a direct-fit rear brake pad option for 2024-2026 Subaru WRX and 2018-2021 Subaru WRX STI rear brake applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It Can Address

• Worn rear brake pads causing reduced stopping performance
• Brake noise from aged pad material or missing shims
• Excess brake dust from older friction compounds
• Uneven rear brake feel during normal driving
• Loss of consistent braking response as pads wear

Installation Notes and Tips

Verify rear fitment before installation: Fits 2024-2026 Subaru WRX, rear and Fits 2018-2021 Subaru WRX STI, rear. Inspect rotors, caliper hardware, and abutment contact points before installing new pads. Brake lubricant is not included, and mounting hardware is not included, so confirm the vehicle’s service needs before beginning the job. Proper bedding-in after installation helps establish stable pad-to-rotor contact.

Quality Assurance

MPA Electrical Quality-Built Premium Semi-Metallic Brake Pads use a copper-free friction formula that meets 2025 compliance requirements and is engineered for low dust, quiet operation, and dependable performance across a broad temperature range. Part number 1001-2118M is a new, standard replacement brake pad set for rear Subaru brake service.