Luk LMC439 Clutch Master Cylinder

Clutch Master Cylinder for Nissan Altima and Maxima

The LuK LMC439 clutch master cylinder is a new hydraulic replacement for manual transmission systems in select Nissan applications. It is built for 2003-2006 Nissan Altima and 2004-2006 Nissan Maxima models, with installation instructions and a push rod included for a more straightforward service job.

Key Features

• New clutch master cylinder for manual transmission hydraulic release systems
• Fits 2003-2006 Nissan Altima and 2004-2006 Nissan Maxima
• Push rod included
• Installation instructions included
• Pre-filled fluid: No
• Pre-bled system: No
• Clutch slave cylinder not included
• Heat shield not included

Product Details

LuK has extensive experience in the evolution of clutch release systems from mechanical to hydraulic designs, and that background is reflected in the LMC439. This clutch master cylinder is intended for drivers servicing a worn or leaking hydraulic clutch circuit on Nissan Altima and Nissan Maxima manual transmission vehicles. The LMC439 cross-references Sachs SH5499 and Dorman First Stop CM640050 for the same application.

Common Problems This Part Can Address

• Soft or inconsistent clutch pedal feel
• Hydraulic fluid leakage at the master cylinder
• Difficulty disengaging the clutch
• Pedal travel that no longer matches normal operation
• Clutch release issues caused by internal cylinder wear

Installation Notes

Fits 2003-2006 Nissan Altima and 2004-2006 Nissan Maxima, manual transmission hydraulic clutch applications. Installation instructions are included, and the push rod is included with the cylinder. Because the system is not pre-filled or pre-bled, the hydraulic circuit must be filled and bled after installation. The clutch slave cylinder is not included, so inspect the rest of the hydraulic system before reassembly.

Quality Assurance

LuK is recognized for its long-standing development work in hydraulic clutch release systems, backed by Schaeffler’s engineering experience in complete clutch release system components. Part number LMC439 is a new replacement component built for direct service use in the listed Nissan applications.