Remy 12758 Alternator

Remanufactured Alternator for Mazda Applications

This Remy Premium Remanufactured alternator is a 12-volt, 100-amp charging unit built for select Mazda vehicles. It includes an internal voltage regulator, internal fan, and pulley, making it a direct replacement option for common charging system service needs.

Remy Premium Remanufactured focuses on remanufactured electrical components for vehicle charging and starting systems. Part number 12758 is built to match the OE-style application requirements for Mazda 3, Mazda 3 Sport, Mazda 6, and MX-5 Miata coverage listed below.

Key Features

• Remanufactured alternator for charging system replacement
• 100 amp amperage rating for select Mazda electrical loads
• 12-volt unit with internal voltage regulator
• Internal fan design
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Mitsubishi
• Part number 12758

Fitment Details

• Fits 2010-2013 Mazda 3, N/A; 100 Amps, fits various alternator models; Premium Remanufactured
• Fits 2010-2013 Mazda 3 Sport, N/A; 100 Amps, fits various alternator models; Premium Remanufactured
• Fits 2006-2013 Mazda 6, N/A; 100 Amps, fits various alternator models; Premium Remanufactured
• Fits 2006-2008 Mazda MX-5 Miata, N/A; 100 Amps, fits various alternator models; Premium Remanufactured

What This Alternator Helps Address

• Battery warning light caused by charging system output loss
• Dim lights or electrical instability while driving
• Slow battery recovery after starting
• Alternator noise or charging irregularities
• Replacement needs for a worn Mazda alternator

Installation Notes and Tips

Verify pulley alignment, connector style, and mounting points against the removed unit before installation. Confirm the vehicle’s charging system condition, battery health, and belt condition so the replacement alternator can operate correctly after installation. This part cross-references Mitsubishi-style applications such as A2TJ0391 and A2TJ0991A for the same application.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured electrical components built for charging-system service. Part number 12758 is specified as a remanufactured alternator with OE manufacturer reference to Mitsubishi and application coverage for select Mazda models.