Bosch SR0861N Starter

Bosch Starter SR0861N for BMW

The Bosch SR0861N is a new 12-volt starter built for BMW applications that need reliable cranking performance and precise fitment. It uses a permanent magnet gear reduction design with a grounded aluminum case and integrated solenoid for consistent engagement.

Bosch Premium Starters are part of the Bosch Starter (New) line, focused on new replacement starters that are built and tested for dependable operation in modern vehicles, including automatic start/stop systems.

Key Features

• 12-volt starter with permanent magnet gear reduction design
• PMGR family construction for efficient starting performance
• Clockwise rotation with 11-tooth drive
• Integrated solenoid attached
• Grounded aluminum case and aluminum closed nose cone
• Designed for automatic start/stop operation
• New unit, not remanufactured
• Direct replacement part number SR0861N

Detailed Description

The Bosch SR0861N starter is engineered for BMW 228i, 320i, 328i, 428i, 528i, X1, X3, X4, and Z4 applications listed below. Its permanent magnet gear reduction layout helps deliver strong cranking performance in a compact 9.015748-inch housing, while the 2.1 power rating supports dependable engine starts in daily driving conditions. The aluminum housing and closed nose design are built for a precise OE-style fit, and the clockwise rotation matches the required starting direction for the listed vehicles. This part cross-references Genuine 12418614519 and 12418612576 for the same application.

What It Helps Fix

• Engine no-crank or intermittent crank conditions
• Slow starter engagement during ignition
• Clicking at key-on caused by starter failure
• Hard starting related to worn starter internals
• Start/stop restart issues on equipped BMW models

Fitment

• Fits 2013-2018 BMW 320i, N/A
• Fits 2013-2018 BMW 320i xDrive, N/A
• Fits 2015-2018 BMW X4, N/A
• Fits 2014-2017 BMW X3, N/A
• Fits 2014-2016 BMW 228i, N/A
• Fits 2015-2016 BMW 228i xDrive, N/A
• Fits 2012-2016 BMW 328i, N/A
• Fits 2014-2016 BMW 328i GT xDrive, N/A
• Fits 2013-2016 BMW 328i xDrive, N/A
• Fits 2014-2016 BMW 428i, N/A
• Fits 2015-2016 BMW 428i Gran Coupe, N/A
• Fits 2014-2016 BMW 428i xDrive, N/A
• Fits 2015-2016 BMW 428i xDrive Gran Coupe, N/A
• Fits 2014-2016 BMW 528i, N/A
• Fits 2014-2016 BMW 528i xDrive, N/A
• Fits 2014-2016 BMW Z4, N/A
• Fits 2014-2015 BMW X1, N/A
• Fits 2012 BMW X1, N/A

Installation Notes

Verify the mounting flange dimensions, tooth count, starter rotation, and solenoid configuration before installation. Mounting hardware and shims are not included, so reuse or source the correct hardware as required by the vehicle. Because this starter uses a flange mount and a single mounting bolt hole, confirm the OE mounting style on the BMW 320i, 328i, 428i, X1, X3, X4, or Z4 application before replacement.

Quality Assurance

Bosch designs, builds, and tests its Premium Starters to meet the demands of modern starting systems. The SR0861N is a new starter assembly intended for direct replacement use in the listed BMW applications.