8M517560AA Drop Connector Hydraulic Release Bearing

CRB-066

Designed for hydraulic clutch systems, the 8M517560AA Drop Connector Hydraulic Release Bearing combines the release bearing and central clutch slave cylinder into one compact assembly. Its job is closely linked to clutch disengagement. Hydraulic pressure from the clutch circuit moves the internal actuator, then the release bearing transfers that movement to the clutch diaphragm spring. 

Visible features include a circular release bearing section, hydraulic actuator housing, mounting points and a side connection structure. The available replacement specifications for this OE group list a 28 mm piston diameter and three mounting bores. Hydraulic operation and plug in mounting are also listed for corresponding replacement parts. These figures describe cataloged replacement units linked to the OE number and should be confirmed against the actual approved sample before they are used as fixed production specifications.

Core Function
Clutch pedal movement needs to reach the clutch pressure plate in a controlled way. Hydraulic fluid carries the pedal force toward the central slave cylinder. Pressure moves the internal piston, and the release bearing then moves against the diaphragm spring. The pressure plate moves away from the clutch disc, allowing the transmission to disengage during gear changes.
Integrated hydraulic release assemblies place the actuator and bearing in one unit. That arrangement keeps the release movement close to the clutch assembly and removes the need for a separate external release arm in applications designed for a central slave cylinder.
The 8M517560AA Drop Connector Hydraulic Release Bearing is identified in parts catalogs as a hydraulic central slave cylinder. Cataloged replacement specifications include a 28 mm piston diameter, three mounting bores and hydraulic operation. Some listings also identify a plug in mounting method.

Why the Drop Connector Design Matters
The connector arrangement is one of the details worth checking before purchasing. Hydraulic clutch release assemblies need a correct connection between the vehicle hydraulic line and the slave cylinder. A connector position that differs from the original part can create an installation problem even when the bearing section looks similar.
The housing and mounting points also determine how the assembly sits inside the clutch system. Three mounting bores are listed for several replacement units linked to 8M517560AA. Their position should be compared against the original part during sample approval.
For distributors, these physical details are useful product identification features. They can be included in internal product records alongside the OE number, vehicle application and cross reference information.