Yes, the DB Electrical 400-52252R 12V 130A Remanufactured Alternator is compatible with the 2003-2009 Acura MDX. It is designed to replace specific OEM part numbers, including the Acura 31100-RDJ-A01 and 31100-RGL-A01, which are the standard units for this vehicle range.
The DB Electrical Alternator provides a 130A output at 12V with a clockwise rotation and an internal voltage regulator. We selected this unit for our comparison because it matches the specific pulley outer diameter of 2.807″ required for the MDX’s serpentine belt system. For an alternator buyer, verifying these exact dimensions is critical because even a minor pulley diameter mismatch can cause the belt to slip or wear prematurely. This remanufactured unit replaces several high-output configurations, including Bosch AL1297N and AC Delco 334-2584. While the unit features an internal regulator, you should confirm if your specific MDX sub-model requires a pigtail adapter or if the plug-and-play wiring harness matches your current connector pin count.
What to Check Before Buying the DB Electrical Alternator
Before ordering this charging component—which is the part of your car that generates electricity to power the engine and electronics—verify these specific details against your current setup:
You can find a detailed breakdown of the technical specs for the 400-52252R to see how it compares to your needs.
- Confirm your vehicle’s OEM part number matches the 31100-RDJ-A01 or 31100-RGL-A01 designations.
- Verify that your existing wiring harness matches the pin configuration of the 130A unit.
- Check that your engine bay has sufficient clearance for the specific housing and cooling fan configuration.
- Confirm that your vehicle does not require a specific “smart” charging software update for the ECU to recognize the remanufactured unit.
- Ensure your local regulations allow for a remanufactured part rather than a new OEM component.
Comparing the DB Electrical Alternator to Other Options
The DB Electrical Alternator sits in the mid-range of the market, offering a balance between a budget-friendly price of around $108.99 and the heavy-duty requirements of an Acura SUV. Buyers with high-demand electrical accessories, such as heavy-duty winches or large auxiliary lighting arrays, might consider high-output (Heavy Duty) alternatives that exceed the 130A threshold. Conversely, if you require a brand-new unit with a full factory warranty rather than a remanufactured part, you would need to look at OEM-branded options. This unit is primarily intended for the standard owner looking to restore original charging capacity without the premium cost of a new factory assembly.
If you need a direct replacement that matches the 2.807″ pulley diameter and 130A output for your 2003-2009 Acura MDX, the DB Electrical Alternator is the correct choice.
Electrical 400-52252R 12V 130A Remanufactured Alternator” />
DB Electrical 400-52252R 12V 130A Remanufactured Alternator
For owners of other models, we have compiled a list of top performing alternators for Acura models.
$108.99 price checked August 2026
If you are researching luxury imports, see our guide on finding the best alternator for mercedes-benz owners.