BOSCH Brake Master Cylinder 8640ZA PMC801 OEM Used

This is a genuine OEM Bosch brake master cylinder assembly (Part #8640ZA / PMC801). The unit is in very good used condition. The assembly includes the integrated white plastic reservoir with fluid level sensor and black electrical connector (male double-pin configuration). All mounting brackets, threaded ports, and connection points are intact with no visible cracks or damage. The pushrod shows normal wear consistent with use. ELECTRICAL CONNECTOR: Features a black plastic male connector housing mounted on the reservoir for the brake fluid level warning system. The two connector pins are recessed inside the housing for protection and appear intact. You must verify that your vehicle’s female connector plug matches this male double-pin configuration before purchasing, as connector designs vary by vehicle year and brake system type. WHAT’S INCLUDED: Complete master cylinder assembly as shown in all photos - Bosch cylinder body, integrated reservoir, fluid level sensor with electrical connector, and mounting bracket. NOT INCLUDED: brake fluid, mounting hardware, brake lines, vehicle wiring harness, or reservoir cap. This is a used part sold AS-IS. Professional installation strongly recommended. COMPATIBILITY MANDATORY BEFORE PURCHASE: Compare part numbers: YOUR existing master cylinder MUST show 8640ZA or PMC801. Verify your brake system type: Check if your vehicle has ABS, stability control, or other brake assist systems. Check mounting configuration: Compare the mounting bracket bolt pattern with your current part. Confirm reservoir type: Verify your current master cylinder uses an integrated reservoir (not remote). Verify electrical connector: Compare the black electrical connector housing on your current master cylinder - it MUST match this male double-pin connector configuration. Check connector pin count: Verify your vehicle’s female connector plug has the same number of pins and matching configuration. VIN verification: Contact a dealer with your VIN to confirm this exact part number is correct for your vehicle. IMPORTANT DISCLAIMERS: 1. PART NUMBER VERIFICATION IS MANDATORY. 2. BRAKE SYSTEM CRITICAL SAFETY COMPONENT - Professional installation strongly recommended. 3. NO COMPATIBILITY GUARANTEES. 4. USED PART - AS-IS CONDITION. 5. PROFESSIONAL INSTALLATION REQUIRED. 6. PROGRAMMING MAY BE REQUIRED. Feel free to message if you have any questions!