Bosch SR9507X Starter Motor

Bosch SR9507X Remanufactured Starter

The Bosch SR9507X is a remanufactured 12-volt starter built for direct replacement use in select BMW applications with a Denso unit. It features a 1.4 power rating, clockwise rotation, a closed aluminum nose cone, and an attached solenoid for a clean OE-style starting system repair.

Bosch Premium Starters are part of the Bosch Starter (Remanufactured) line, which focuses on rebuilt starting components that are tested for performance and reliability. The SR9507X follows that product-line approach with application-specific construction for BMW 320i and BMW 323i starting systems.

Key Features

• Remanufactured Bosch starter for electrical, charging, and starting system service
• 12-volt design with 1.4 power rating
• Clockwise starter rotation
• Closed nose design with aluminum nose cone and aluminum finish
• Solenoid attached for streamlined replacement
• 9-tooth starter drive
• 2 mounting bolt holes
• Built for BMW applications using a Denso unit

Detailed Product Overview

Use Bosch SR9507X when replacing a worn starter in a BMW 320i or BMW 323i equipped with a Denso unit. This remanufactured starter is engineered around the original starting-system layout, with the correct voltage, rotation, tooth count, and mounting configuration for the listed vehicles. The Bosch SR9507X is a practical choice for restoring dependable engine cranking in 2004-2005 BMW 320i and 2006 BMW 323i models.

This part cross-references Bosch OE-style starter applications for the same vehicle fitment.

What This Starter Helps Address

• Slow or weak engine cranking
• No-crank conditions caused by starter wear
• Intermittent starting due to internal starter failure
• Grinding or engagement issues related to worn starter drive components
• Starting-system repair needs on BMW 320i and BMW 323i models with a Denso unit

Installation Notes and Tips

Verify the vehicle uses the listed Denso unit before installation. Confirm the starter rotation, tooth count, and mounting bolt pattern match the original part. Mounting hardware and shims are not included, so reuse or source the correct vehicle-specific hardware as needed. Inspect battery condition, cable connections, and charging-system output during replacement to help prevent repeat starting issues.

Quality Assurance

Bosch Premium Starters are built and tested to meet the demands of starting-system service. This SR9507X remanufactured starter is produced under Bosch’s starter program for consistent fit and function in the specified BMW applications.