Denso 210-4213 Alternator

Denso Reman Alternator for Mazda RX-8

The Denso 210-4213 reman alternator is a 12-volt charging system component built for Mazda RX-8 applications with a 100 amp output. It is engineered for dependable electrical performance in vehicles that rely on stable charging for factory electronics and daily drivability.

Compatible With 2004 Mazda RX-8, and 2005-2007 Mazda RX-8. This reman alternator is a direct-fit replacement for the listed Mazda RX-8 applications and is identified by part number 210-4213.

Key Features

• 12.0-volt alternator with 100 amp amperage rating
• Internal fan design for charging system cooling
• Clockwise rotation
• External regulator type
• Remanufactured to Denso First Time Fit standards
• OE-family Mitsubishi design for the listed Mazda RX-8 applications

Product Details

Denso reman alternators are rebuilt through a controlled testing and inspection process that checks stators and rectifiers at high voltage and verifies rotor performance before release. Slip rings are finished to a fine surface specification to reduce brush wear, and bearings are validated to OE standards with premium lubricants. The result is a reman alternator intended to meet the electrical demands of modern vehicle systems while maintaining OE-style fit and function. The Denso 210-4213 is a practical replacement choice for Mazda RX-8 owners needing stable charging performance.

This part cross-references Mitsubishi A3TG1291 for the same application.

Common Problems This Part Can Address

• Battery warning light caused by weak charging output
• Low system voltage affecting ignition and electronics
• Dim lights or inconsistent accessory performance
• Charging noise related to worn alternator bearings
• Failure to maintain proper battery charge during driving

Installation Notes and Tips

Verify the vehicle’s build date before ordering, since the 2004 Mazda RX-8 application applies from 04/04/2003. Confirm the 12-volt system, 100 amp rating, clockwise rotation, and external regulator configuration match the original unit before installation. Inspect belt condition, pulley alignment, and charging connections during replacement to help ensure proper operation.

Quality Assurance

Denso reman alternators are processed and tested to OE-focused standards for fit, electrical performance, and durability. The 210-4213 is built to support reliable charging performance in the listed Mazda RX-8 applications.