Bosch AL0188X Alternator

Bosch Remanufactured Alternator AL0188X

The Bosch AL0188X is a remanufactured 12-volt alternator built for Volkswagen charging-system applications that call for a 90 amp unit. It is designed for direct replacement use on select Volkswagen Beetle, Golf, Jetta, Golf City, and R32 models with Bosch, Valeo, or Hitachi unit references where listed.

Key Features

• Remanufactured Bosch alternator for 12V charging systems
• 90 amp amperage rating for select Volkswagen applications
• Internal fan and internal regulator design
• Clockwise rotation
• Includes pulley with 6-groove belt configuration
• Aluminum case and aluminum housing construction
• External fan included and external regulator included per product data
• Part number AL0188X for ordering and cross-reference lookup

Product Line Details

Bosch Alternator (Remanufactured) units are remanufactured, tested charging components built to restore proper electrical output in vehicles that rely on stable alternator performance. This product line focuses on OE-style replacement fitment and consistent charging-system operation for Volkswagen platforms that use the specified mounting, plug, and pulley configuration.

Detailed Description

Bosch AL0188X is a remanufactured alternator engineered for Volkswagen charging systems that require a 12-volt, 90 amp replacement with a 6-groove pulley and clockwise rotation. It uses an internal fan, internal regulator, aluminum case material, and plug type 367 with rear-view plug clocking at 6 o’clock. This alternator is listed for multiple Volkswagen Beetle, Golf, Jetta, Golf City, and R32 applications, including vehicles originally equipped with Bosch, Valeo, or Hitachi units where noted. This part cross-references Bosch and Valeo OE numbers (e.g., 06A903026A, 028903028D) for the same application. The Bosch AL0188X is a practical replacement choice when the original alternator no longer maintains proper system voltage.

What It Helps Address

• Low battery charging caused by a worn alternator
• Battery warning light concerns related to charging output
• Dim lights or unstable electrical performance from weak system voltage
• Charging-system failure on select Volkswagen Beetle, Golf, Jetta, Golf City, and R32 models
• Noise or belt-drive issues tied to a failing alternator assembly

Installation Notes and Tips

Verify the vehicle’s original alternator amperage, plug type, pulley groove count, and mounting orientation before installation. Confirm the application against the listed fitment for your Volkswagen Beetle, Golf, Jetta, Golf City, or R32, since several model years use different alternator suppliers and output ratings. Match the existing belt drive and connector style to the AL0188X specifications for proper installation and charging-system operation.

Quality Assurance

Bosch states that its premium alternators are designed, built, and tested for performance and reliability. As a remanufactured charging component, the AL0188X is processed to meet Bosch’s replacement standards for electrical output and fitment consistency.

Fitment

• Fits 2010 Volkswagen Golf City, N/A — To 90 Amp Alternator; with Bosch Unit
• Fits 2010 Volkswagen Golf City, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 2010 Volkswagen Jetta, N/A
• Fits 2007 Volkswagen Jetta, N/A
• Fits 2004-2007 Volkswagen Beetle, N/A — To 90 Amp Alternator
• Fits 2001-2006 Volkswagen Golf, N/A — To 90 Amp Alternator
• Fits 1999-2005 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Bosch Unit
• Fits 2001-2005 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 1998 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 1999-2005 Volkswagen Jetta, N/A — To 90 Amp Alternator; with Bosch Unit
• Fits 1999-2005 Volkswagen Jetta, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 2005 Volkswagen Jetta, N/A — Standard; To 90 Amp Alternator
• Fits 2003-2004 Volkswagen Beetle, N/A — Standard; To 70 Amp Alternator
• Fits 1999-2004 Volkswagen Golf, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 1999-2004 Volkswagen Golf, N/A — To 90 Amp Alternator; with Bosch Unit
• Fits 2004 Volkswagen R32, N/A — To 90 Amp Alternator; with Valeo Unit
• Fits 2004 Volkswagen R32, N/A — To 90 Amp Alternator; with Bosch Unit
• Fits 2002 Volkswagen Jetta, N/A — To 90 Amp Alternator
• Fits 2001-2002 Volkswagen Jetta, N/A — To 90 Amp Alternator; with Hitachi Unit
• Fits 1999-2001 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Valeo Unit; with Marking # 047 903 018AX
• Fits 2001 Volkswagen Golf, N/A — Standard; To 90 Amp Alternator
• Fits 1999 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Valeo Unit; with Marking # 030 903 023JX; with Marking # 038 903 018
• Fits 1999 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Valeo Unit; with Marking # 038 903 018A; with Marking # 037 903 119A
• Fits 1998 Volkswagen Beetle, N/A — To 90 Amp Alternator; with Bosch Unit; From Chassis # 024256