Bosch SR0448X Starter Motor

Reliable Starter for BMW Models

The Bosch Starter (Remanufactured) SR0448X is designed to provide dependable starting power for a range of BMW vehicles. Engineered to meet original equipment specifications, this 12-volt starter ensures consistent performance and durability for your BMW 3 Series, 5 Series, M3, X3, Z3, and Z4 models.

• Voltage: 12V for standard automotive electrical systems
• Power Rating: 1.4 kW for efficient engine cranking
• Mounting Bolt Holes: 3 for secure installation
• Nose Cone Material: Aluminum with a closed nose design
• Starter Rotation: Clockwise to match OEM requirements
• Solenoid Attached for integrated operation
• Tooth Quantity: 9 for proper engagement with 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. These starters are rebuilt using original components and tested to ensure reliable performance. The SR0448X model is part of this line, providing a cost-effective alternative to new starters without compromising on quality or fitment for BMW vehicles.

Detailed Product Description

This Bosch SR0448X starter features a durable aluminum nose cone with a closed nose design, enhancing protection against environmental elements. The 12-volt, 1.4 kW power rating delivers sufficient torque to crank engines efficiently. With three mounting bolt holes and a clockwise rotation, it is engineered to fit precisely on compatible BMW models including the 318i, 320i, 325i, 328i, 330i, 525i, 530i, M3, X3, Z3, and Z4. The attached solenoid simplifies installation and operation, while the 9-tooth pinion ensures proper engagement with the flywheel for smooth starts.

Common Applications and Issues Addressed

• Replacement for faulty or worn-out starters in BMW 3 Series and 5 Series vehicles
• Resolves intermittent or no-start conditions caused by starter failure
• Eliminates grinding or unusual noises during engine start
• Addresses slow cranking or weak engine turnover
• Suitable for restoring reliable starting performance in BMW M3, X3, Z3, and Z4 models

Installation Notes and Tips

Ensure the vehicle battery is fully charged before installation. This starter requires three mounting bolts and does not include mounting hardware or shims, so retain original parts or acquire replacements as needed. Verify the clockwise rotation matches your vehicle’s starter specifications. Properly connect the solenoid wiring and secure all electrical connections to avoid starting issues. Consult your vehicle’s service manual for torque specifications and safety precautions during installation.

Quality Assurance and Warranty

The Bosch Starter (Remanufactured) SR0448X is remanufactured to meet original equipment manufacturer standards and is recommended by OE guidelines. Each unit undergoes rigorous testing to ensure reliable operation and durability. While specific warranty details may vary, Bosch remanufactured starters typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.