Bosch SR0445X Starter Motor

Reliable Starter for BMW 3 Series and 5 Series Models

The Bosch Starter (Remanufactured) SR0445X 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 318i, 318is, 320i, 325i, 525i, 525iT, and M3.

• 12-volt electrical system compatibility
• 1.4 kW power rating for efficient engine cranking
• Three mounting bolt holes for secure installation
• Aluminum closed nose cone for durability and heat resistance
• Clockwise starter rotation matching OEM requirements
• Attached solenoid for integrated operation
• Nine teeth on the starter gear for proper engagement
• 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 units are rebuilt using original components and tested to ensure reliable performance and longevity. The SR0445X 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 SR0445X starter features a robust aluminum closed nose cone that enhances heat dissipation and protects internal components. The attached solenoid simplifies installation and operation by integrating the engagement mechanism. With a 1.4 kW power rating and a clockwise rotation, this starter matches the exact requirements of compatible BMW engines. The three mounting bolt holes ensure a secure fit, while the nine-tooth gear provides reliable engagement with the flywheel. As a remanufactured unit, it offers a balance of performance and value, meeting OE recommendations for quality and durability.

Common Applications and Issues Addressed

• Replacement for faulty or worn-out starters in BMW 318i, 318is, 320i, 325i, 525i, 525iT, and M3 models
• Resolves intermittent or no-start conditions caused by starter failure
• Addresses slow engine cranking due to starter motor wear
• Fixes starter solenoid engagement problems
• Eliminates grinding or unusual noises from starter gear misalignment

Installation Notes and Tips

Ensure the vehicle battery is fully charged before installation. This starter requires three mounting bolts (not included) and does not come with mounting hardware or shims, so retain original parts or source replacements as needed. Verify the clockwise rotation matches your vehicle’s engine specifications. Proper alignment of the starter gear with the flywheel teeth is critical to avoid premature wear. Consult the vehicle’s service manual for torque specifications and safety precautions during installation.

Quality Assurance and Warranty

The Bosch Starter (Remanufactured) SR0445X is remanufactured to meet original equipment standards and undergoes rigorous testing to ensure reliable operation. Bosch supports this product with a limited warranty covering defects in materials and workmanship. This warranty provides assurance of quality and performance for your BMW starter replacement needs.