Remy 20047 Alternator

Remanufactured Alternator for Ram ProMaster

The Remy Premium Remanufactured alternator, part number 20047, is a 12-volt charging component built for Ram ProMaster 1500, 2500, and 3500 vans from 2014-2021. It delivers 220 amps and uses an external voltage regulator, making it a direct-fit option for vehicles that need stable charging output under demanding electrical loads.

Remy’s Premium Remanufactured line focuses on OE-style replacement parts rebuilt to meet application-specific requirements. This alternator is remanufactured from an OE manufacturer base by Nippondenso and includes a pulley for installation on the correct clockwise rotation setup.

• 220 amp output for higher electrical demand
• 12-volt alternator with external voltage regulator type
• Internal fan design for charging system cooling
• Clockwise rotation
• Pulley included
• Remanufactured OE-manufacturer-based unit from Nippondenso

Fitment Details

• Fits 2014-2021 Ram ProMaster 1500, N/A; Opt; 220 Amps; Premium Remanufactured
• Fits 2014-2021 Ram ProMaster 2500, N/A; Opt; 220 Amps; Premium Remanufactured
• Fits 2014-2021 Ram ProMaster 3500, N/A; Opt; 220 Amps; Premium Remanufactured

This part cross-references 421000-7110 and 4727756AA for the same application.

What This Alternator Helps Address

• Battery warning lights caused by weak charging output
• Low system voltage during accessory-heavy operation
• Dim lights or inconsistent electrical performance
• Charging failure from a worn or damaged alternator
• Voltage regulation issues tied to the charging system

Installation Notes and Tips

Verify the vehicle uses the 220 amp optional charging setup before ordering. Confirm clockwise rotation, external voltage regulator configuration, and pulley fitment against the original unit. For Ram ProMaster 1500, Ram ProMaster 2500, and Ram ProMaster 3500 applications, compare the OE part number and connector layout before installation.

Quality Assurance

Remy Premium Remanufactured parts are rebuilt to OE-based specifications for the listed application. Part number 20047 is intended for direct replacement use on the confirmed Ram ProMaster fitments above.