Bosch SR7587X Starter Motor

Bosch SR7587X Remanufactured Starter

The Bosch SR7587X is a remanufactured 12-volt starter built for dependable engine cranking in select Ford, Mercury, and Mazda applications. It features a clockwise rotation, an aluminum closed nose cone, and an attached solenoid for a direct replacement-style setup.

Bosch Starter (Remanufactured) products are part of Bosch’s starter line focused on tested performance and consistent starting reliability. The SR7587X follows that approach with OE-style construction details that matter in daily driving and repeat-start conditions.

• 12-volt remanufactured starter for select vehicles
• 1.4 power rating for starting performance
• Clockwise starter rotation
• Aluminum closed nose cone
• Solenoid attached
• 11-tooth drive design
• 2 mounting bolt holes
• Remanufactured Bosch starter, part number SR7587X

Vehicle Fitment

• Fits 2004-2010 Ford Focus, N/A
• Fits 2005-2010 Mercury Mariner, N/A
• Fits 2005-2009 Ford Escape, N/A
• Fits 2008 Mazda Tribute, N/A
• Fits 2005-2006 Mazda Tribute, N/A

This starter cross-references 4S4Z11002AA and 5S4Z11002A for the same application.

What It Helps Resolve

• Slow or weak engine cranking
• No-start conditions caused by starter failure
• Intermittent starting after key engagement
• Grinding or inconsistent starter engagement
• Electrical starting issues tied to a worn starter assembly

Installation Notes

Confirm the vehicle’s year, make, model, and starter configuration before installation. This unit uses a clockwise rotation, 2 mounting bolt holes, and an attached solenoid, so matching the original starter design is important for proper fitment on Ford Focus, Ford Escape, Mercury Mariner, and Mazda Tribute applications. Mounting hardware and shims are not included.

Quality Assurance

Bosch remanufactured starters are built, tested, and inspected to meet application-specific starting requirements. The SR7587X is designed to provide consistent electrical starting performance in the listed vehicle applications.