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Luk LMC637 Clutch Master Cylinder
Clutch Master Cylinder for Hyundai Sonata
This LuK clutch master cylinder is a new replacement part for manual transmission service on the 2008-2010 Hyundai Sonata. Part number LMC637 is built for hydraulic clutch release systems and includes the push rod and installation instructions for a more complete repair.
Key Features
- Brand: LuK
- Part number: LMC637
- Clutch master cylinder for manual transmission components
- New part construction
- Push rod included
- Installation instructions included
- Pre-filled fluid: No
- Pre-bled system: No
- Heat shield included: No
- Supplied without clutch slave cylinder
Product Details
LuK has extensive experience in hydraulic clutch release systems, drawing on long-term development work in the transition from mechanical to hydraulic operation. This LMC637 clutch master cylinder is a direct-fit service component for the 2008, 2009, and 2010 Hyundai Sonata with manual transmission equipment. It is intended for drivers replacing a worn or leaking master cylinder and restoring consistent clutch hydraulic pressure. This part cross-references Dayco 72637 for the same application.
Common Repair Reasons
- Soft or inconsistent clutch pedal feel
- Hydraulic fluid leakage at the master cylinder
- Difficulty disengaging the clutch
- Pedal travel that no longer returns normally
- Loss of hydraulic pressure in the clutch release system
Installation Notes
Fits 2008-2010 Hyundai Sonata, N/A. Installation instructions are included. The unit is not pre-filled and is not pre-bled, so the hydraulic system must be filled and bled during installation. The clutch slave cylinder is not included, and no heat shield is supplied. Verify the vehicle’s manual transmission hydraulic setup and confirm part number LMC637 before installation.
Quality Assurance
LuK is recognized for its role in the development of hydraulic clutch release systems, and this replacement master cylinder reflects that engineering background. Part number LMC637 is a new component built for service replacement on the listed Hyundai Sonata applications.
| Brand | Luk |
| Part Number | LMC637 |
| Installation Instructions Included | Yes |
| Push Rod Included | Yes |
| Heat Shield Included | No |
| Pre-Filled Fluid | No |
| Clutch Slave Cylinder Included | Without clutch slave cylinder |
| Pre-Bled System | No |
| New Part | Yes |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Hyundai | Sonata | 2.4L | L4 | N/A | |
| 2009 | Hyundai | Sonata | 2.4L | L4 | N/A | |
| 2008 | Hyundai | Sonata | 2.4L | L4 | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.