Bosch SR3310X Starter Motor

Bosch SR3310X Remanufactured Starter

The Bosch SR3310X is a remanufactured 12-volt starter built for direct replacement in select Subaru, Toyota, and Scion applications. It uses a closed nose aluminum housing, an attached solenoid, and a counterclockwise rotation design to match the original starting system requirements.

Bosch Starter (Remanufactured) products are part of Bosch’s starter line focused on tested electrical performance and dependable cranking operation. The SR3310X follows that approach with OE-style construction details for vehicles that need a precise starter match.

• 12-volt remanufactured starter for starting-system replacement
• 1.4 power rating for OE-style cranking performance
• Counterclockwise starter rotation
• Closed nose design with aluminum nose cone and aluminum finish
• Solenoid attached for a complete starter assembly
• 9-tooth drive configuration
• 2 mounting bolt holes for proper fitment

Vehicle Fitment

• Fits 2013-2020 Subaru BRZ, N/A
• Fits 2017-2020 Toyota 86, N/A
• Fits 2013-2016 Scion FR-S, N/A

This part cross-references Bosch OE numbers 23300AA730 and SU00300451 for the same application.

Common Starting Issues It May Solve

• Engine no-crank condition
• Slow or weak cranking during startup
• Intermittent starter engagement
• Clicking at key start with no engine rotation
• Starter wear related to internal electrical or drive component failure

Installation Notes and Tips

Verify the vehicle’s original starter configuration before installation, including 12-volt system requirements, counterclockwise rotation, 9-tooth drive count, and 2-bolt mounting pattern. Mounting hardware and shims are not included, so reuse or source the correct hardware as needed. Confirm battery condition, cable integrity, and charging-system output before replacing the starter to avoid repeat no-start concerns.

Quality Assurance

This Bosch remanufactured starter is built, tested, and inspected to support reliable starting performance. The aluminum nose cone and attached solenoid reflect an OE-style replacement design for the Subaru BRZ, Toyota 86, and Scion FR-S applications listed above.