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Luk LSC641 Clutch Slave Cylinder
| Brand | Luk LSC641 |
|---|---|
| Fits | Audi · 16 vehicles |
Hydraulic clutch release. Part of a complete clutch release system for smooth, precise operation.
LuK expertise. Built on extensive experience in clutch release system development.
Cross-references Four Seasons 73641, Sachs SH6540 and 8K0721257E for the same application. See all 4.
Clutch Slave Cylinder for Audi Manual Transmissions
The LuK LSC641 clutch slave cylinder is a hydraulic release component for select Audi manual transmission applications. It is built for 2013-2017 Audi A4 Quattro, A5 Quattro, S4, and S5 models, including 2013 vehicles built from 01/29/2013.
- Hydraulic clutch slave cylinder for manual transmission clutch release systems
- Fits 2014-2017 Audi A5 Quattro
- Fits 2014-2017 Audi S5
- Fits 2014-2016 Audi A4 Quattro
- Fits 2014-2016 Audi S4
- Fits 2013 Audi A4 Quattro, from 01/29/2013
- Fits 2013 Audi A5 Quattro, from 01/29/2013
Product Details
LuK has extensive experience in clutch release systems and hydraulic actuation, with a background in the transition from mechanical to hydraulic clutch operation. The LSC641 is a direct-fit clutch slave cylinder for Audi A4 Quattro, Audi A5 Quattro, Audi S4, and Audi S5 manual transmission service work. This part cross-references Sachs SH6540 for the same application.
Common Repair Symptoms
- Hard or inconsistent clutch pedal feel
- Difficulty disengaging the clutch
- Hydraulic fluid leakage at the slave cylinder
- Gear engagement problems related to clutch release
- Loss of clutch release performance in manual transmission operation
Installation Notes
Verify vehicle build date before ordering, especially for 2013 Audi A4 Quattro and A5 Quattro applications listed from 01/29/2013. Confirm the original part number and hydraulic connection style against the removed component before installation. Bleed the clutch hydraulic system after replacement to restore proper pedal and release operation.
Quality Assurance
LuK is part of Schaeffler’s clutch release system expertise, with engineering focused on hydraulic clutch actuation components. Part number LSC641 is cataloged for the listed Audi applications and is supported by OE-style interchange references including Four Seasons 73641 and OE reference 8K0721257E.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Audi | A5 Quattro | 2.0L | L4 | N/A | — |
| 2017 | Audi | S5 | 3.0L | V6 | N/A | — |
| 2016 | Audi | A4 Quattro | 2.0L | L4 | N/A | — |
| 2016 | Audi | A5 Quattro | 2.0L | L4 | N/A | — |
| 2016 | Audi | S4 | 3.0L | V6 | N/A | — |
| 2016 | Audi | S5 | 3.0L | V6 | N/A | — |
| 2015 | Audi | A4 Quattro | 2.0L | L4 | N/A | — |
| 2015 | Audi | A5 Quattro | 2.0L | L4 | N/A | — |
| 2015 | Audi | S4 | 3.0L | V6 | N/A | — |
| 2015 | Audi | S5 | 3.0L | V6 | N/A | — |
| 2014 | Audi | A4 Quattro | 2.0L | L4 | N/A | — |
| 2014 | Audi | A5 Quattro | 2.0L | L4 | N/A | — |
| 2014 | Audi | S4 | 3.0L | V6 | N/A | — |
| 2014 | Audi | S5 | 3.0L | V6 | N/A | — |
| 2013 | Audi | A4 Quattro | 2.0L | L4 | N/A | From 01/29/2013 |
| 2013 | Audi | A5 Quattro | 2.0L | L4 | N/A | From 01/29/2013 |
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