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Brembo P54039X Disc Brake Pad Set - Front or Rear
| Brand | Brembo P54039X |
|---|---|
| Position | Front and Rear |
| 11741 | 23092, 23325 |
| Pad Wear Sensor Included | Yes |
| Friction Material Composition | Low-metallic |
| Grade Type | Performance |
| Brake Lubricant Included | No |
| FMSI Number | D10017902, d10017942 |
| Weight | 2.17 |
| Pad Wear Sensor Type | Mechanical |
| Prepared For Pad Wear Sensor | Yes |
| Outer Pad Height | 77 |
| Inner Pad Height | 77 |
| Outer Pad Width | 132 |
| Inner Pad Width | 132 |
| Outer Pad Overall Thickness | 15 |
| Inner Pad Overall Thickness | 15 |
| Product line | XTRA Low-Met |
| Fits | Buick, Mitsubishi, Subaru, and Toyota · 38 vehicles |
Performance grade. Low-metallic friction material for responsive braking characteristics.
Sensor-ready design. Prepared for mechanical pad wear sensor applications.
Application-specific fitment. Cataloged for select Subaru, Toyota, Mitsubishi, and Buick brake service.
Cross-references Akebono Performance ASP1001, Anchor 2972 and Anchor 2975 for the same application. See all 105.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
Brembo XTRA Low-Met disc brake pad set P54039X is a performance-grade brake pad option for select Subaru, Toyota, Mitsubishi, and Buick applications. It uses a low-metallic friction material and is prepared for a mechanical pad wear sensor, making it a focused replacement for drivers who want consistent braking response and sensor compatibility.
Compatible With Subaru WRX, WRX STI, BRZ, and Impreza applications, plus Toyota 86, Mitsubishi Lancer, and Buick Regal fitments listed below. The Brembo P54039X part number appears in interchange references for several equivalent applications, including Brembo P54039X and related cross-reference listings.
Key Features
- Low-metallic friction material for performance-oriented braking characteristics.
- Prepared for pad wear sensor use with a mechanical sensor type.
- Pad wear sensor included for applications that require it.
- Front and rear fitments listed for specific vehicle applications.
- Pad dimensions listed for accurate application matching.
Product Details
The Brembo XTRA Low-Met line is aimed at drivers who want a performance-focused brake pad formulation with application-specific fitment. This disc brake pad set P54039X uses a low-metallic compound and is listed with FMSI numbers D10017902 and D10017942. The fitment data covers front applications for 2003-2006 and 2008-2014 Mitsubishi Lancer, 2004-2012 and 2014 Subaru Impreza, 2013-2017 Subaru WRX STI, 2014 Subaru WRX, 2017-2020 Subaru BRZ, and 2019-2020 Toyota 86, plus rear applications for 2012-2013 Buick Regal and 2013 Subaru Impreza. This part cross-references Monroe Shocks & Struts (e.g., 181585) for the same application.
What It Helps Address
- Brake pad replacement for worn friction material.
- Sensor-related service needs on equipped vehicles.
- Performance brake service for low-metallic pad applications.
- Fitment-specific replacement for listed Subaru, Toyota, Mitsubishi, and Buick models.
Installation Notes
Verify the vehicle year, make, model, position, and sensor requirements before installation. Match the pad dimensions and FMSI numbers to the existing brake setup, and confirm whether the application uses a mechanical wear sensor. Professional installation is recommended for brake service.
Quality Assurance
Brembo’s XTRA Low-Met product line is built around performance-oriented brake pad formulations and application-specific cataloging. The P54039X listing includes defined pad measurements, sensor preparation, and FMSI references to support accurate parts matching.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2021 | Subaru | WRX | Limited | 2.0L | H4 | Front | XTRA Low-Met |
| 2020 | Subaru | BRZ | — | 2.0L | H4 | Front | XTRA Low-Met |
| 2020 | Subaru | WRX | Limited | 2.0L | H4 | Front | XTRA Low-Met |
| 2020 | Toyota | 86 | — | 2.0L | H4 | Front | XTRA Low-Met |
| 2019 | Subaru | BRZ | — | 2.0L | H4 | Front | XTRA Low-Met |
| 2019 | Toyota | 86 | TRD Special Edition | — | — | Front | XTRA Low-Met |
| 2018 | Subaru | BRZ | — | 2.0L | H4 | Front | XTRA Low-Met |
| 2017 | Subaru | BRZ | — | 2.0L | H4 | Front | XTRA Low-Met |
| 2017 | Subaru | WRX STI | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2016 | Subaru | WRX STI | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2015 | Subaru | WRX STI | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2014 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2014 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2014 | Subaru | WRX | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2014 | Subaru | WRX STI | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2013 | Buick | Regal | — | — | — | Rear | XTRA Low-Met |
| 2013 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2013 | Subaru | Impreza | — | — | — | Rear | XTRA Low-Met |
| 2013 | Subaru | WRX STI | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2012 | Buick | Regal | — | — | — | Rear | XTRA Low-Met |
| 2012 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2012 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2011 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2011 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2010 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2010 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2009 | Mitsubishi | Lancer | Evolution GSR | 2.0L | L4 | Front | XTRA Low-Met |
| 2009 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2008 | Mitsubishi | Lancer | Evolution GSR | 2.0L | L4 | Front | XTRA Low-Met |
| 2008 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2007 | Subaru | Impreza | WRX STI | 2.5L | H4 | Front | XTRA Low-Met |
| 2006 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2006 | Subaru | Impreza | WRX STI | 2.5L | H4 | Front | XTRA Low-Met |
| 2005 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2005 | Subaru | Impreza | WRX STI | 2.5L | H4 | Front | XTRA Low-Met |
| 2004 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
| 2004 | Subaru | Impreza | — | 2.5L | H4 | Front | XTRA Low-Met |
| 2003 | Mitsubishi | Lancer | — | 2.0L | L4 | Front | XTRA Low-Met |
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