OE slave cylinder
 

Will a OE slave cylinder hold up to a clutchmasters stage 4 clutch?

That's on a de motor.

Should. I use oem parts on mine and haven't had any issue with comp clutch stage 4 (same as clutchmasters), os giken twin disk and now carbonetics triple disk.

Master and slaves do wear out over time so if yours is old there is a chance that it will just go out but they go out with a stock clutch. OEM price is around 40$ for one so it's no big deal. The HR concentric slave cylinders are the ones that are junk and need upgraded.

Thanks.