Raybestos SC37817 Clutch Slave Cylinder

Raybestos SC37817 Clutch Slave Cylinder is a professional-grade replacement part for manual transmissions that rely on a hydraulic clutch system, identified by part number SC37817 and marketed under the Raybestos brand to restore proper clutch actuation when the original slave cylinder has worn, leaked, or failed, helping maintain consistent pedal feel and engagement timing. Retail listings for SC37817 show historical compatibility with certain early '90s Mitsubishi and Plymouth models (noted as MISTU & PLY 90-94 in some product descriptions), reflecting Raybestos' coverage for common older domestic and import applications with hydraulic release systems. Interchange data from aftermarket catalogs indicates the SC37817 number also appears alongside Dorman CS37817 and BrakeBest CSA37817, suggesting potential cross-brand compatibility or substitution options across catalogs, subject to exact year, engine, and transmission configuration. In operation, the clutch slave cylinder sits in the clutch hydraulics line and converts hydraulic pressure from the master cylinder into movement of the slave piston, which actuates the release bearing to disengage the clutch during gear changes.