MPA Electrical 13940 Alternator

Remanufactured Alternator for Nissan Altima

MPA Electrical Part Number 13940 is a remanufactured alternator built for 12-volt charging systems with a 110-amp output. It is a direct-fit electrical replacement for select Nissan Altima applications and uses an internal regulator, internal fan, and a 6-groove serpentine pulley.

Key Features

• 110 amps for stable charging performance
• 12-volt alternator with internal regulator
• Internal fan design for charging system cooling
• 6-groove serpentine pulley
• Clockwise rotation
• Manufacturer listed as Hitachi
• Remanufactured MPA Electrical part 13940

Product Details

This remanufactured alternator is engineered for Nissan Altima charging system service where the original unit has failed or is no longer maintaining proper voltage. The 110-amp rating supports everyday electrical demand, while the internal regulator helps maintain consistent output in a 12-volt system. The 1:30 clock position and 6-groove serpentine pulley are important fitment details for matching the original configuration. This part cross-references BBB Industries 13940 for the same application.

Compatible With 2002-2006 Nissan Altima and 2006 Nissan Altima. Search terms such as 2002 Nissan Altima alternator 110 amp, 2006 Nissan Altima remanufactured alternator, and MPA Electrical 13940 alternator replacement align with this application. The part number 13940 is also referenced in interchange listings for OE-style replacement matching.

Common Issues This Part May Resolve

• Battery warning light caused by low charging output
• Dim lights or electrical accessories losing power
• Battery not staying charged during normal driving
• Alternator noise or charging system failure
• Voltage irregularities from a worn original unit

Installation Notes and Tips

Verify pulley groove count, rotation direction, clock position, and connector alignment before installation. Confirm the vehicle’s charging system specifications against the original alternator to ensure the 6-groove serpentine pulley and 110-amp output match the application. For best results, inspect the battery, belt condition, and charging cables during replacement on Nissan Altima models.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore charging-system function using application-specific specifications. Part 13940 is listed with Hitachi manufacturer data and OE-style interchange references for select Nissan Altima applications.