Bosch SR4215X Starter

Bosch SR4215X Starter for Mazda Miata

The Bosch SR4215X is a remanufactured 12-volt starter built for 1990-1997 Mazda Miata applications. It combines a closed-nose aluminum housing, clockwise rotation, and an attached solenoid for direct replacement use in the starting system.

Key Features

• Remanufactured Bosch starter for Mazda Miata starting-system service
• 12-volt design with 0.95 power rating
• Clockwise starter rotation
• Closed nose with aluminum nose cone and aluminum finish
• 3 mounting bolt holes for application-specific fitment
• 8-tooth drive gear
• Solenoid attached

Product Details

Bosch Premium Starters are remanufactured, built, and tested to deliver consistent starting performance and dependable operation. The SR4215X is engineered for Mazda Miata models from 1990 through 1997 and is identified by part number SR4215X for catalog and service matching. This part cross-references Bosch OE-style numbers B61P18400 and B61R18400A for the same application.

For Mazda Miata owners addressing hard-start or no-crank concerns, this starter provides the correct electrical and mechanical configuration for the vehicle’s starting circuit. The aluminum construction and closed-nose design support a direct-fit replacement approach for the specified Miata years.

Common Issues This Starter Can Address

• No-crank condition when the ignition is turned to start
• Slow or inconsistent engine cranking
• Starter motor wear from age and mileage
• Solenoid-related starting failure
• Starting-system noise tied to a worn drive gear or internal starter wear

Installation Notes

Verify the vehicle’s year and starter configuration before installation. This Bosch SR4215X uses 3 mounting bolt holes, a clockwise rotation, and an 8-tooth drive gear, so matching the original unit is important for proper engagement. Mounting hardware and shims are not included, so reuse or source the correct vehicle-specific hardware as needed. Confirm battery condition, cable integrity, and charging-system output during diagnosis to avoid replacing a starter for an unrelated fault.

Quality Assurance

This remanufactured Bosch starter is built and tested to Bosch standards for performance and reliability. It is designed as a service replacement for 1990-1997 Mazda Miata starting-system repairs.