HomeTransmission > Manual Transmission ComponentsLuk LMC391 Clutch Master Cylinder
Part #: LMC391

Luk LMC391 Clutch Master Cylinder

⚙️ 21 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, Baja, Legacy, Outback, Forester, and Impreza
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Clutch Master Cylinder for Subaru Manual Transmissions

The Luk LMC391 clutch master cylinder is designed specifically for Subaru models including the Baja, Forester, Impreza, Legacy, and Outback. This new part ensures precise clutch control and smooth operation for manual transmission systems.

  • Includes installation instructions for straightforward replacement
  • Comes with a push rod for complete assembly
  • Does not include a heat shield or clutch slave cylinder
  • New part, not pre-filled or pre-bled

Product Details and Specifications

The Luk LMC391 clutch master cylinder is engineered as a direct replacement for Subaru manual transmission vehicles. It arrives as a new component without pre-filled fluid or a pre-bled system, requiring proper bleeding during installation. The included push rod facilitates proper engagement with the clutch pedal, while the absence of a heat shield and clutch slave cylinder means these components must be sourced separately if needed. Installation instructions are provided to assist with the replacement process, ensuring compatibility and fitment with Subaru Baja, Forester, Impreza, Legacy, and Outback models.

Common Applications and Problem Resolution

  • Restores clutch pedal pressure and responsiveness
  • Eliminates clutch fluid leaks from a worn master cylinder
  • Resolves issues with clutch disengagement or engagement
  • Addresses spongy or inconsistent clutch pedal feel
  • Prevents clutch system failure due to master cylinder wear

Installation Notes and Tips

Installation of the Luk LMC391 clutch master cylinder requires proper bleeding of the clutch hydraulic system since the part is not pre-bled or pre-filled. Ensure the push rod is correctly aligned with the clutch pedal for optimal performance. Follow the included installation instructions carefully to avoid air in the system and to maintain clutch function. Because this part does not include a clutch slave cylinder or heat shield, verify the condition of those components during installation and replace if necessary.

Quality Assurance and Warranty Information

The Luk LMC391 clutch master cylinder is a new, OEM-quality replacement part designed to meet or exceed original equipment specifications. While specific warranty details may vary, Luk parts typically come with a limited warranty covering defects in materials and workmanship. Using this part helps maintain the reliability and safety of your Subaru manual transmission system.

This part fits 21 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2006SubaruBajaSport2.5LH4N/A
2005SubaruBajaSport2.5LH4N/A
2004SubaruBaja2.5LH4N/A
2004SubaruLegacy2.5LH4N/A
2004SubaruOutback2.5LH4N/A
2003SubaruBaja2.5LH4N/A
2003SubaruLegacy2.5LH4N/A
2003SubaruOutback2.5LH4N/A
2002SubaruForester2.5LH4N/A
2002SubaruLegacy2.5LH4N/A
2002SubaruOutback2.5LH4N/A
2001SubaruForester2.5LH4N/A
2001SubaruImpreza2.5LH4N/A
2001SubaruLegacy2.5LH4N/A
2001SubaruOutback2.5LH4N/A
2000SubaruForester2.5LH4N/A
2000SubaruImpreza2.5LH4N/A
2000SubaruLegacy2.5LH4N/A
2000SubaruOutbackN/A
1999SubaruForester2.5LH4N/A
1999SubaruImpreza2.5LH4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

136.4700235013237230AE010511052010072391727198CM141781CM640038M1504SH5258

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.