Bosch SR4315X Starter

Bosch Remanufactured Starter for Subaru

Bosch SR4315X is a remanufactured 12-volt starter built for Subaru applications that need consistent cranking performance and dependable starting. It is a direct-fit electrical starting component for select WRX, Forester, Crosstrek, Impreza, and XV Crosstrek models.

Bosch Premium Starters are remanufactured, tested units engineered to deliver reliable operation in everyday driving conditions. The SR4315X uses a closed nose design with an aluminum nose cone and aluminum finish, along with an attached solenoid for a complete starter assembly layout.

Key Features

• 12-volt remanufactured starter for Subaru starting system repair
• 1.2 power rating for OE-style cranking performance
• Counterclockwise starter rotation
• Closed nose design with aluminum nose cone
• Solenoid attached for simplified replacement
• 2 mounting bolt holes and 8-tooth drive configuration
• Direct replacement part number SR4315X

Detailed Description

The Bosch SR4315X starter is built for Subaru vehicles that require a remanufactured replacement with the correct electrical and mechanical specifications. It is compatible with 2015-2020 Subaru WRX, 2014-2018 Subaru Forester, 2016-2017 Subaru Crosstrek, 2012-2016 Subaru Impreza, and 2013-2015 Subaru XV Crosstrek. This part cross-references 23300AA63A and 23300AA631 for the same application.

For buyers searching for a remanufactured Subaru WRX starter, Subaru Forester starter replacement, or a Bosch starter for Subaru Impreza and Crosstrek models, SR4315X provides the correct fitment details and starter configuration. The aluminum construction and closed nose layout support a clean OE-style installation profile.

Common Starting Problems It Can Address

• No-crank condition when the ignition key or start button is engaged
• Slow or weak engine cranking
• Intermittent starter engagement
• Starter noise during cranking
• Failure caused by worn internal starter components

Installation Notes and Tips

• Verify vehicle year, model, and starter rotation before installation.
• Confirm the 2-bolt mounting pattern and 8-tooth drive match the original unit.
• Inspect battery condition, charging output, and cable connections before replacing the starter.
• Mounting hardware and shims are not included.
• Follow factory service procedures for removal, installation, and electrical connection checks.

Quality Assurance

Bosch remanufactured starters are built, tested, and inspected to meet application-specific performance requirements. SR4315X is a remanufactured starter assembly designed for dependable starting service in confirmed Subaru applications.