Raybestos MC391323 Brake Master Cylinder
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Raybestos
 Element3; New

Raybestos MC391323 Brake Master Cylinder

Brand Raybestos MC391323
Mounting Hole Quantity 2
Master Cylinder Material Aluminum
Mounting Hole Diameter 0.343
Bore Size 0.938
Number of Ports 2
Primary Port Thread A M10x1
Secondary Port Thread A M10x1
Product line Element3; New
Fits Subaru · 27 vehicles

Aluminum construction. Lightweight housing with corrosion-resistant material for brake hydraulics.

Dual-port design. Two M10x1 ports support the specified hydraulic connection layout.

Element3 line. Raybestos brake hydraulics product line for focused replacement coverage.

Cross-references Cardone New 13-3285, Centric Parts 130.47029 and Quality-Built NM55375 for the same application. See all 7.

$124.85Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $124.85
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Brake Master Cylinder Overview

Raybestos Element3 brake master cylinder, part number MC391323, is built for Subaru Legacy and Subaru Outback applications listed below. It uses an aluminum body with a 0.938 bore and dual M10x1 ports for a direct hydraulic replacement.

Key Features

  • Aluminum master cylinder construction for a lightweight, corrosion-resistant housing.
  • 0.938 bore size for consistent hydraulic pressure delivery.
  • Two mounting holes and two M10x1 ports for the specified brake system layout.
  • Raybestos Element3 New line for a focused brake hydraulics replacement.
  • Part number MC391323 for accurate ordering and fitment verification.

Detailed Description

This brake master cylinder is engineered for Subaru Legacy and Subaru Outback models in the fitment list, including 2005-2008 Legacy and 2005-2008 Outback applications, with a 2008 Legacy listing that excludes Dynamic Stability Control and a 2005 Outback listing that also excludes Dynamic Stability Control. The aluminum construction, dual-port design, and 0.938 bore size support proper brake fluid movement through the hydraulic system. Raybestos MC391323 is part of the Element3 New product line, and the MC391323 reference should be matched carefully to the vehicle application before installation.

Common Issues This Part Can Address

  • Brake pedal travel that feels excessive or inconsistent.
  • Loss of hydraulic pressure in the brake system.
  • Fluid leakage from the master cylinder assembly.
  • Internal seal wear that affects brake response.
  • Brake performance concerns tied to a failing master cylinder.

Installation Notes and Tips

Verify the vehicle’s brake configuration against the fitment notes before ordering, especially the Dynamic Stability Control exclusions listed for certain Subaru Legacy and Subaru Outback applications. Confirm port thread size, bore size, and mounting hole layout during replacement. Proper bleeding of the brake system is required after installation to restore hydraulic performance.

Related reading

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionNotes
2008SubaruLegacy2.5iAutomaticw/o Dynamic Stability Control; Element3; New
2008SubaruLegacy2.5iManualElement3; New
2008SubaruLegacy2.5i Special Edition—Element3; New
2008SubaruLegacy2.5i Limited—w/o Dynamic Stability Control; Element3; New
2008SubaruOutbackXT Limited—Element3; New
2008SubaruOutback2.5i Limited—Element3; New
2007SubaruLegacyGT Limited—Element3; New
2007SubaruLegacy2.5i Special Edition—Element3; New
2007SubaruLegacy2.5i Limited—Element3; New
2007SubaruOutback2.5i—Element3; New
2007SubaruOutbackXT Limited—Element3; New
2007SubaruOutback2.5i Limited—Element3; New
2007SubaruOutback2.5i Basic—Element3; New
2006SubaruLegacy——Element3; New
2006SubaruOutbackR—Element3; New
2006SubaruOutback2.5i—Element3; New
2006SubaruOutbackXT—Element3; New
2006SubaruOutbackR L.L. Bean Edition—Element3; New
2006SubaruOutback2.5i Limited—Element3; New
2005SubaruLegacy——Element3; New
2005SubaruOutbackLimited—Element3; New
2005SubaruOutbackR—Element3; New
2005SubaruOutbacki—Element3; New
2005SubaruOutbackXT—Element3; New
2005SubaruOutbackXT Limited—Element3; New
2005SubaruOutbackVDC Limited—w/o Dynamic Stability Control; Element3; New
2005SubaruOutbackR L.L. Bean Edition—w/o Dynamic Stability Control; Element3; New
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Cardone New — 13-3285Centric Parts — 130.47029Quality-Built — NM5537511-328526401AG010506168NMC11155