Bosch SR0448X Starter Motor

Bosch Remanufactured Starter for BMW

The Bosch SR0448X is a remanufactured 12-volt starter built for BMW applications that require Bosch unit fitment. It features a 1.4 power rating, clockwise rotation, and an attached solenoid for direct replacement use in select BMW 3 Series, 5 Series, Z3, Z4, and X3 models.

Bosch Starter (Remanufactured) products are part of the Bosch premium starter line, which focuses on OE-style starting performance and tested reliability for import vehicles. The SR0448X is an OE recommendation part and cross-references Bosch application numbers for the same use case.

Key Features

• 12-volt remanufactured starter for BMW starting system service
• 1.4 power rating for OE-style cranking performance
• Clockwise starter rotation
• Attached solenoid for simplified replacement
• Aluminum nose cone with closed nose design
• 3 mounting bolt holes and 9-tooth drive
• OE recommendation part for select Bosch-equipped BMW applications

Detailed Description

Bosch SR0448X is a remanufactured starter designed for BMW vehicles that use a Bosch starter unit. It is built with an aluminum finish, aluminum nose cone, and closed nose configuration, and it is engineered to match the electrical and mechanical requirements of the original application. This part number, SR0448X, is used across multiple BMW platforms including 323i, 325i, 330i, 525i, 530i, Z3, Z4, and X3 coverage where Bosch fitment is specified.

This part cross-references Bosch OE numbers 12411712937 and 12411740373 for the same application.

Vehicle Fitment

• Fits 2006 BMW 323i, with Bosch Unit
• Fits 2001-2006 BMW 325Ci
• Fits 2001-2006 BMW 330Ci
• Fits 2004-2006 BMW X3
• Fits 2004-2005 BMW 320i, with Bosch Unit
• Fits 2001-2005 BMW 325i
• Fits 1993-1994 BMW 325i
• Fits 2001-2005 BMW 325xi
• Fits 2001-2005 BMW 330i
• Fits 2001-2005 BMW 330xi
• Fits 2004-2005 BMW 525i
• Fits 2001-2005 BMW 530i
• Fits 2003-2005 BMW Z4
• Fits 2001-2003 BMW 320i
• Fits 1996-2002 BMW Z3
• Fits 2000 BMW 323Ci
• Fits 1998-2000 BMW 323i
• Fits 2000 BMW 328Ci
• Fits 1997-2000 BMW 328i
• Fits 1997-2000 BMW 528i
• Fits 1999 BMW 318ti
• Fits 1995-1996 BMW 318ti
• Fits 1998-1999 BMW 323is
• Fits 1996-1999 BMW 328is
• Fits 1997-1999 BMW M3
• Fits 1995-1996 BMW 318i
• Fits 1992-1996 BMW 318is
• Fits 1996 BMW 328i, with Bosch Unit

Installation Notes and Tips

Confirm the vehicle uses a Bosch starter unit before ordering. Verify the 12-volt system, 3-bolt mounting pattern, clockwise rotation, and 9-tooth drive against the removed starter. Mounting hardware and shims are not included, so reuse or source the correct hardware as needed. Check electrical connections, battery condition, and charging system output during installation to avoid repeat no-start concerns.

Quality Assurance

Bosch remanufactured starters are built, tested, and inspected to support reliable starting performance in BMW applications. The SR0448X is an OE recommendation part designed to meet the requirements of the original Bosch-equipped starting system.