Bosch SR443X Starter Motor

Reliable Starter for BMW 3 and 5 Series Models

The Bosch Starter (Remanufactured) SR443X is designed to provide dependable starting power for select BMW vehicles. Engineered to meet original equipment specifications, this 12-volt starter ensures consistent performance for models including the BMW 325e, 325is, and 528e.

• Voltage: 12V for standard automotive electrical systems
• Power Rating: 1.4 kW delivering sufficient torque for engine cranking
• Mounting Bolt Hole Quantity: 2 for secure installation
• Nose Cone Material: Durable aluminum with a closed nose design
• Starter Rotation: Clockwise to match OEM requirements
• 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 adhere to strict quality standards and OE specifications. This ensures that the SR443X starter provides reliable starting performance while supporting sustainability through remanufacturing processes. The product line focuses on delivering components that meet or exceed original equipment requirements for various vehicle applications.

Detailed Product Description

The SR443X starter is specifically designed for BMW models such as the 325e, 325es, 325i, 325is, 325iX, 525i, and 528e. Featuring a robust aluminum closed nose cone, this starter resists corrosion and mechanical wear. The clockwise rotation and 9-tooth pinion gear ensure proper meshing with the engine’s flywheel, providing smooth and reliable engine starts. The integrated solenoid simplifies installation and operation, while the two mounting bolt holes allow for a secure fit. This remanufactured starter is built to meet OE recommendations, making it a suitable replacement for original Bosch starters.

Common Applications and Issues Addressed

• Resolves engine crank failure or slow cranking issues
• Replaces worn or damaged starters in BMW 3 and 5 Series vehicles
• Addresses intermittent starting problems caused by solenoid failure
• Eliminates starter noise due to worn pinion teeth or nose cone damage
• Improves starting reliability in cold weather conditions

Installation Notes and Tips

Installation requires removal of the existing starter and mounting the SR443X using the two bolt holes provided. Note that mounting hardware and shims are not included, so reuse existing components or acquire replacements as needed. Ensure electrical connections are clean and secure for optimal solenoid operation. Verify clockwise rotation compatibility with your specific BMW model before installation.

Quality Assurance and Warranty

This Bosch remanufactured starter is produced under strict quality control standards and meets original equipment manufacturer recommendations. While specific warranty details are not provided here, Bosch remanufactured starters typically come with a limited warranty covering defects in materials and workmanship. Refer to Bosch or your parts provider for exact warranty terms.