Bosch SR0809X Starter Motor

Bosch Remanufactured Starter for BMW V8 Applications

The Bosch SR0809X is a remanufactured 12-volt starter built for BMW applications that demand consistent cranking performance and reliable engagement. It is a direct-fit starter for select BMW 545i, 645Ci, 745i, 745Li, 550i, 650i, 750i, 750Li, and X5 models.

Bosch Premium Starters are remanufactured, tested, and built to deliver dependable starting performance. This unit features a clockwise rotation, a closed aluminum nose cone, an attached solenoid, and a 9-tooth drive for the specified BMW applications.

Key Features

• Brand: Bosch
• Part number: SR0809X
• Remanufactured 12-volt starter
• 1.7 power rating
• Clockwise starter rotation
• Closed nose design with aluminum nose cone and aluminum finish
• Solenoid attached
• 9-tooth drive
• 2 mounting bolt holes
• OE recommendation: Yes

Detailed Product Overview

The Bosch SR0809X starter is engineered for BMW starting systems that require a remanufactured OE-style replacement with the correct electrical and mechanical configuration. Its 12-volt design, clockwise rotation, and 9-tooth drive support proper starter engagement, while the closed nose aluminum housing helps match the original application layout. If you are replacing a worn starter on a BMW 550i, 650i, or X5, this Bosch starter provides the correct fitment profile for the listed vehicles.

This part cross-references Bosch OE numbers 12417536690 and 12417537513 for the same application.

What This Starter Helps Resolve

• Slow or weak engine cranking
• No-start condition caused by starter failure
• Intermittent starter engagement
• Grinding or clicking during start-up
• Electrical starting issues tied to a worn starter motor

Installation Notes and Tips

• Verify the vehicle’s starter configuration before installation, including rotation, tooth count, and mounting style.
• Mounting hardware and shims are not included.
• Inspect battery condition, charging system output, and starter cables before replacing the starter.
• Confirm the OE part number and vehicle fitment for your BMW 545i, 645Ci, 745i, 745Li, 550i, 650i, 750i, 750Li, or X5 before installation.

Quality Assurance

Bosch remanufactured starters are built and tested to meet application-specific performance and reliability requirements. The SR0809X is an OE-recommended replacement for the listed BMW applications and is designed to match the original starter specifications for proper operation.