MPA Electrical 13942 Alternator

Remanufactured Alternator for VW and Audi

MPA Electrical Part Number 13942 is a remanufactured 12-volt alternator built for select Volkswagen and Audi applications with a Hitachi charging system. It delivers 120 amps of output and uses an internal regulator, internal fan, and a 6-groove serpentine clutch pulley for OE-style fitment.

This remanufactured MPA Electrical alternator is intended for vehicles that use the Hitachi 120 amp alternator setup, including Volkswagen Golf, Jetta, Beetle, R32, and Golf City, plus Audi TT and TT Quattro models. Part number 13942 is also listed under Bosch 13942 for cross-reference purposes.

Key Features

• 120 amp output for 12-volt charging systems
• Internal regulator for integrated voltage control
• Internal fan design
• 6-groove serpentine clutch pulley
• Clockwise rotation
• Clock position: 3:00
• Remanufactured by MPA Electrical
• Manufacturer: Hitachi

Detailed Description

MPA Electrical 13942 is a remanufactured alternator engineered for vehicles equipped with a Hitachi alternator platform. The unit is specified at 120 amps and 12 volts, with a clockwise rotation, internal regulator, and internal cooling fan to match the electrical and mounting requirements of the original application. The 6-groove serpentine clutch pulley supports proper belt engagement in the charging system.

Compatible With 2007 Volkswagen Golf City, 2006 Audi TT, 2003-2006 Audi TT Quattro, 2001 Audi TT Quattro, 2000-2006 Volkswagen Beetle, 2002-2006 Volkswagen Golf, 2002-2005 Audi TT, 2001-2005 Volkswagen Jetta, 2004 Volkswagen R32, 2002 Audi TT Quattro, and 2001 Audi TT. This part cross-references Bosch 13942 for the same application.

What It Helps Address

• Low charging output from a worn alternator
• Battery warning light caused by charging system failure
• Dim lights or electrical instability at idle
• Accessory performance issues from insufficient alternator output
• Noise or belt-related concerns tied to a failing pulley or alternator assembly

Installation Notes and Tips

Verify the vehicle uses a Hitachi 120 amp alternator before ordering. Match the pulley style, clock position, rotation, and electrical connector layout to the original unit to confirm fitment. Inspect the serpentine belt and charging system wiring during replacement, and compare the old alternator to the new unit before installation.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore proper charging-system function for the listed Volkswagen and Audi applications. Part number 13942 is specified for OE-style replacement use on the confirmed fitment vehicles.