I have a 2003 350z DE and I recently found out my oem clutch slave cylinder (csc) is bad and thought buying an aftermarket one would be better choice than oem since it seems to be a common failure with oem csc. I tried to do some research but only found information about the HR csc. I realize that zspeed makes an HD heavy duty concentric master and slave cylinder but its only available for 2007 Z's and up. My question is what can I do, other than buying another oem csc that might fail on me again. Is there a company that provides a good aftermarket clutch slave cylinder for 03-06 350z?

 

There's been little demand for an aftermarket VQ35DE slave. The HR uses a concentric slave cylinder (CSC), which is a different design. The DE uses an external slave, which is better isulated from heat and vibration, and the OEM unit (or aftermarket equvalent) is much more reliable.

 

Never knew there was any demand for an aftermarket DE slave.

 

You're looking at it, right here...

 

Here, Dorman slave cyl:

 

157k on my Original slave and master, I should probably rebuild them.