HomeTransmission > Manual Transmission ComponentsLuk LMC390 Clutch Master Cylinder
Part #: LMC390

Luk LMC390 Clutch Master Cylinder

⚙️ 5 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, Legacy, Forester, and Impreza
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Clutch Master Cylinder for Subaru Vehicles

The Luk LMC390 clutch master cylinder is designed specifically for Subaru Forester, Impreza, and Legacy models. This new manual transmission component ensures precise clutch operation and improved pedal feel for your vehicle.

Key Features of Luk LMC390 Clutch Master Cylinder

  • Includes installation instructions for straightforward replacement
  • Comes with a push rod for complete assembly
  • New part, ensuring no prior wear or damage
  • Does not include clutch slave cylinder, heat shield, or pre-filled fluid
  • Pre-bled system not included, requires bleeding during installation

Detailed Product Description

The Luk LMC390 clutch master cylinder is engineered to meet the specifications of Subaru Forester, Impreza, and Legacy models. As a critical component in the manual transmission system, it transfers hydraulic pressure from the clutch pedal to the clutch slave cylinder, enabling smooth gear shifts. This part is supplied new and includes a push rod to facilitate proper connection and function. While it does not come pre-filled or pre-bled, the included installation instructions provide guidance for proper bleeding and setup. The absence of a heat shield and clutch slave cylinder means this part is intended as a direct replacement for the master cylinder only.

Common Applications and Issues Addressed

  • Restores clutch pedal pressure and responsiveness
  • Eliminates clutch engagement problems caused by master cylinder failure
  • Resolves hydraulic fluid leaks in the clutch system
  • Prevents clutch slippage due to insufficient hydraulic pressure
  • Addresses inconsistent clutch pedal feel or sinking pedal issues

Installation Notes and Tips

  • Installation instructions are included to assist with proper mounting and connection
  • Ensure the hydraulic system is fully bled after installation to avoid air pockets
  • Check compatibility with Subaru Forester, Impreza, and Legacy models before installation
  • Use appropriate tools to avoid damage to the push rod or mounting points

Quality Assurance and Warranty

The Luk LMC390 clutch master cylinder is a new part manufactured to meet OEM standards for durability and performance. While specific warranty details are not provided, Luk products typically adhere to strict quality control processes to ensure reliability in manual transmission applications.

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1999SubaruLegacy2.5LH4N/A
1998SubaruForester2.5LH4N/A
1998SubaruImpreza2.5LH4N/A
1998SubaruLegacy2.5LH4N/A
1998SubaruLegacy2.2LH4N/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:

136.4700137230FC000511051910072390729777800103CM640040M1501SH5280

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