Bosch SR0448N Starter Motor

Reliable Starter for BMW Models

The Bosch Starter (New) SR0448N is designed to provide dependable engine starting performance for a range of BMW vehicles. Engineered with quality materials and precise specifications, this 12-volt starter ensures consistent operation for models including the BMW 318i, 325i, 330i, and others.

• Voltage: 12V for standard automotive electrical systems
• Power Rating: 1.4 kW for efficient engine cranking
• Mounting Bolt Hole Quantity: 2 for secure installation
• Nose Cone Material: Aluminum for lightweight durability
• Starter Rotation: Clockwise to match OEM specifications
• Solenoid Attached: Yes, integrated for simplified wiring
• Tooth Quantity: 9 for proper engagement with flywheel
• Starter Finish: Aluminum for corrosion resistance
• New unit, not remanufactured, ensuring original quality

Detailed Product Description

This Bosch Starter (New) SR0448N is a direct replacement starter designed specifically for select BMW models such as the 318i, 323i, 325i, 328i, 330i, 525i, and M3, among others. The starter operates at 12 volts with a power rating of 1.4 kW, providing sufficient torque to crank the engine reliably. Featuring a durable aluminum nose cone and casing, it offers resistance to wear and corrosion. The clockwise rotation and 9-tooth pinion gear ensure compatibility with the original flywheel design. The solenoid is attached, streamlining installation and electrical connections. This starter requires two mounting bolts for secure attachment but does not include mounting hardware or shims.

Compatible Vehicles and Applications

• Replacement starter for BMW 318i, 318is, 318ti
• Compatible with BMW 323Ci, 323i, 323is
• Fits BMW 325Ci, 325i, 325xi models
• Suitable for BMW 328Ci, 328i, 328is
• Works with BMW 330Ci, 330i, 330xi
• Also compatible with BMW 525i, 528i, 530i, M3, X3, Z3, Z4

Common Issues This Starter Addresses

• Engine fails to crank or slow cranking
• Intermittent starting problems
• Grinding noise during engine start
• Starter motor does not engage
• Electrical faults related to solenoid failure

Installation Notes and Tips

Ensure the vehicle battery is fully charged before installation. This starter requires two mounting bolts; verify bolt condition and torque specifications during installation. Since mounting hardware and shims are not included, reuse existing components or source replacements as needed. Confirm the starter rotation is clockwise to match the vehicle’s flywheel. Proper electrical connections to the attached solenoid are essential for reliable operation.

Quality Assurance and Warranty

The Bosch Starter (New) SR0448N is a new, original equipment quality part designed to meet or exceed OEM standards. Bosch’s Starter (New) product line focuses on delivering reliable starting performance with durable materials such as aluminum housings and integrated solenoids. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties to ensure customer confidence and product reliability.