Genuine 34311160617 Brake Master Cylinder O-Ring

The Genuine BMW brake master cylinder O-ring (part number 34311160617) is a critical sealing component designed to maintain hydraulic integrity in your vehicle's brake master cylinder assembly. This factory-specification O-ring prevents brake fluid leakage and ensures consistent hydraulic pressure delivery to your braking system.

Key Features:

• Genuine BMW factory replacement part ensures exact fit and optimal performance
• Precision-molded from high-quality, brake fluid-resistant rubber compound
• Designed to withstand high hydraulic pressures and temperature extremes
• Maintains proper seal to prevent air infiltration and brake fluid contamination
• Direct OEM replacement for worn or damaged seals during master cylinder service

This O-ring is an essential component during brake master cylinder rebuilds or replacements. Using genuine BMW parts ensures proper fitment, material compatibility with DOT-approved brake fluids, and reliable long-term performance. Replace this seal any time the master cylinder is serviced to maintain optimal brake system function and safety.