MPA Electrical 15421 Alternator

Remanufactured Alternator for Ford Focus

MPA Electrical Part Number 15421 is a remanufactured alternator built for 12-volt charging systems with a 110-amp output. It uses an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine clutch pulley for the specified Ford application.

Compatible with 2004 Ford Focus and 2005-2006 Ford Focus with Federal Emissions, this alternator is a direct-fit charging component for vehicles needing OE-style electrical performance. The MPA Electrical remanufactured product line focuses on restored core components for charging and starting system service.

Key Features

• 110 amps, 12 volts
• Internal regulator for integrated voltage control
• Internal fan for alternator cooling
• 6-groove serpentine clutch pulley
• Clockwise rotation
• Ford application coverage for Focus charging system service
• MPA Electrical Part Number 15421

Detailed Description

This remanufactured alternator is engineered for Ford Focus charging system replacement where the original unit has failed or is no longer maintaining proper output. The 110-amp design supports standard vehicle electrical loads, while the internal regulator helps maintain stable charging voltage. The 6-groove serpentine clutch pulley and clockwise rotation match the listed Ford fitment, making Part Number 15421 a practical replacement for the specified 2004-2006 Ford Focus applications.

This part cross-references Anchor 8407 for the same application. It also interchanges with OE-style numbers including 4S4T-10300-BC and 4S4T-10300-BD.

What It Helps Fix

• Battery warning light caused by low alternator output
• Dead battery from insufficient charging
• Dim lights or unstable electrical performance
• Charging system faults in a Ford Focus
• Noise or pulley-related alternator replacement needs

Installation Notes and Tips

Fits 2004 Ford Focus, N/A. Fits 2005-2006 Ford Focus, N/A, with Federal Emissions. Alternator replacement on the 2005-2006 Ford Focus requires two people, and the repair manual should be followed for proper procedures. Verify pulley style, connector match, and charging system specifications before installation. Part Number 15421 should be matched to the vehicle’s original alternator configuration for correct fitment.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for charging-system service and application-specific fitment. This alternator is listed with OE-style interchange references for the Ford Focus platform, including Part Number 15421.