Bosch SR444X Starter Motor

Reliable Starter for BMW 750iL and 850 Series Vehicles

The Bosch Starter (Remanufactured) SR444X is designed to provide dependable starting power for select BMW models, including the 750iL, 850Ci, 850CSi, and 850i. This 12-volt starter ensures consistent engine engagement with a clockwise rotation and a durable aluminum closed nose cone.

• Voltage: 12V for standard automotive electrical systems
• Power Rating: 2.2 kW for efficient engine cranking
• Mounting Bolt Hole Quantity: 2 for secure installation
• Nose Cone Material: Aluminum with a closed nose design
• Starter Rotation: Clockwise to match OEM specifications
• Solenoid Attached: Yes, integrated for streamlined operation
• Tooth Quantity: 9 for proper engagement with the flywheel
• Remanufactured unit meeting OE recommendations

About the Bosch Starter (Remanufactured) Product Line

The Bosch Starter (Remanufactured) line offers remanufactured starters that meet original equipment manufacturer standards. These units are rebuilt using quality components and tested to ensure reliable performance. The SR444X starter is part of this line, providing a cost-effective alternative to new starters while maintaining compatibility and durability for BMW vehicles.

Product Details and Compatibility

This remanufactured starter is specifically compatible with BMW 750iL, 850Ci, 850CSi, and 850i models. Featuring a 12-volt system and a 2.2 kW power rating, it delivers the necessary torque to start your engine efficiently. The aluminum closed nose cone enhances durability and heat dissipation, while the clockwise rotation matches the original starter’s operation. The unit includes an attached solenoid but does not come with mounting hardware or shims, so ensure you have the necessary components for installation.

Common Applications and Issues Addressed

• Replaces faulty or worn-out starters in BMW 750iL and 850 series vehicles
• Resolves intermittent or no-start conditions caused by starter failure
• Eliminates grinding or unusual noises during engine start-up
• Addresses slow cranking or weak starter motor performance
• Restores reliable engine engagement for smooth vehicle operation

Installation Notes and Tips

Before installation, verify compatibility with your BMW model and engine type. The SR444X starter requires two mounting bolts and does not include mounting hardware or shims, so retain or acquire these parts as needed. Ensure the electrical connections are clean and secure, and confirm the starter rotation is clockwise to match your vehicle’s specifications. Professional installation is recommended to avoid damage and ensure proper function.

Quality Assurance and Warranty

This Bosch remanufactured starter meets original equipment recommendations and undergoes rigorous testing to ensure performance and reliability. While specific warranty details may vary, Bosch remanufactured starters typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.