LuK Clutch Slave Cylinder P/N:LSC423
LuK LSC612 clutch slave cylinder for the 2008-2009 Audi A5 Quattro V6 3.2L, the 2010-2013 A5 Quattro 4-cylinder 2.0L and other vehicles turns hydraulic pressure from the pedal into the movement that releases the clutch. It sits in the release system between the pedal and the clutch, which sets how easy the clutch is to operate.
A spongy or sinking clutch pedal, gears that are hard to select, or fluid leaking near the clutch can mean the slave cylinder is worn, though the clutch master cylinder or a hydraulic line can be behind the same signs.
The 2008-2009 Audi A5 Quattro V6 3.2L, the 2010-2013 A5 Quattro 4-cylinder 2.0L, the 2008-2012 Audi S5 V8 4.2L, the 2013 S5 V6 3.0L and the 2010-2013 Audi A4 Quattro 4-cylinder 2.0L take this clutch slave cylinder, and so do more Audi models. It meets or exceeds OE specifications. Driving a different Audi? Look up its year and engine in the "Vehicles it fits" section. This listing is one slave cylinder, and the 2008-2012 Audi S5 V8 4.2L takes one.
Interchange: 8K0 721 257 A · 0 986 486 619 · 6283 000 090 · 6283 654 015
3102419 · 5120401100 · SH6514
This part cross-references / interchanges with the following part numbers:
Does the LuK LSC612 work as a clutch slave cylinder for the 2008-2012 Audi S5 V8 4.2L?
Yes. LuK LSC612 is listed for the 2008-2012 Audi S5 V8 4.2L and the 2013 S5 V6 3.0L, one per vehicle. Owners of other Audi models can find their year and engine in the "Vehicles it fits" section.
What does the integrated travel sensor on LuK clutch slave cylinders do?
On LuK slave cylinders that carry one, the integrated travel sensor reads clutch pedal position. Start-stop, electric parking brake, hill-start and speed control use that signal.
My clutch pedal feels spongy, so could the LuK LSC612 slave cylinder fix it?
If the slave cylinder is the cause, the LuK LSC612 replaces it, but a spongy pedal can have other causes. A shop can test the clutch hydraulics before you order.
Is 8K0 721 257 A the same part as the LuK LSC612?
Yes. 8K0 721 257 A is one of the other numbers that the LuK LSC612 clutch slave cylinder replaces.
Is the LuK LSC612 made in the United States?
Yes. The country of origin listed for the LuK LSC612 clutch slave cylinder is the United States.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.