Sachs 3151231031 Clutch Release Bearing

The Sachs 3151231031 is a precision-engineered clutch release bearing, also known as a throwout bearing, designed to provide reliable clutch operation in BMW manual transmission vehicles. This OE-quality component forms the critical connection between the rotating clutch assembly and the stationary actuation system, ensuring smooth engagement and disengagement of the clutch.

Key Features:

• High-precision ball bearing construction with high-strength steel inner and outer rings
• Special synthetic material housing designed for reduced weight and enhanced wear resistance
• Factory-lubricated with specialized grease for maintenance-free operation throughout service life
• Engineered to compensate for assembly and tolerance-related offset
• Decouples engine vibrations to reduce driveline noise and harshness
• Available in both pull-type and push-type configurations

OEM Cross-References: This bearing supersedes and replaces multiple BMW part numbers including 21511204419, 21511207275, 21511208423, 21511223168, 21511223366, 21511225203, 21512225619, 21512226729, and 21517521471. Also known by Sachs alternate part number SN3759.

As a component manufactured by Sachs, a ZF Aftermarket brand and leading OEM supplier to European automakers for over 120 years, this release bearing meets or exceeds original equipment specifications. Professional installation is recommended, and the bearing should always be replaced whenever clutch service is performed to ensure optimal clutch system performance and longevity.