Bosch SR9506X Starter Motor

Bosch SR9506X Remanufactured Starter

The Bosch SR9506X is a remanufactured 12-volt starter built for direct replacement use in select BMW applications. It features a clockwise rotation, a closed aluminum nose cone, and an attached solenoid for a clean OE-style setup.

Compatible with BMW Z4, BMW M3, and BMW Z3 applications listed below, this Bosch starter is built around the specifications needed for reliable engine cranking and consistent starting performance. The SR9506X is a practical choice when replacing a worn starter on a BMW Z4, BMW M3, or BMW Z3.

Key Features

• 12-volt remanufactured starter for automotive starting systems
• 1.3 power rating for OE-style starting performance
• Clockwise starter rotation
• Closed nose design with aluminum nose cone and aluminum finish
• Attached solenoid for simplified replacement
• 3 mounting bolt holes and 9-tooth drive configuration
• Direct interchange references: 12417830793, 12417835735

Product Details

Bosch Starter (Remanufactured) SR9506X is part of Bosch Premium Starters, a product line focused on remanufactured starting components that are built and tested for performance and reliability. This starter is engineered for BMW starting-system service where the original unit uses a 12-volt, clockwise-rotation design with a closed nose and integrated solenoid. It is a fitment-based replacement for 2001-2006 BMW M3, 2002 BMW Z3, and 2006-2008 BMW Z4 applications.

This part cross-references Bosch OE numbers 12417830793 and 12417835735 for the same application. The Bosch SR9506X is a remanufactured starter intended for drivers and technicians replacing a failing OE starter on BMW M3, BMW Z3, or BMW Z4 vehicles.

Common Problems This Starter Can Address

• Engine no-crank condition when the starter motor no longer engages
• Slow or weak cranking during startup
• Intermittent starting caused by worn internal starter components
• Starter noise from a damaged drive or solenoid issue
• Starting-system failure on BMW M3, BMW Z3, or BMW Z4 applications

Installation Notes and Tips

• Verify the vehicle year, model, and starter configuration before installation.
• Confirm the 3-bolt mounting pattern and 9-tooth drive match the original unit.
• Inspect battery condition, cables, and charging-system output before replacing the starter.
• Mounting hardware and shims are not included.
• Use the vehicle service procedure for proper electrical connection and torque specifications.

Quality Assurance

Bosch Premium Starters are remanufactured, built, and tested to meet the performance and reliability expectations associated with Bosch starting components. The SR9506X is designed as a service replacement for the listed BMW applications and follows Bosch’s remanufactured product standards.