Metzger 002 154 85 06 Alternator Voltage Regulator 12V for Bosch Alternators

The Metzger 002 154 85 06 is a replacement alternator voltage regulator designed for use with Bosch alternators. It regulates and controls the voltage output of the alternator, ensuring a stable and consistent charge is delivered to the vehicle's 12-volt electrical system and battery.

Key Specifications:

• Rated System Voltage: 12V
• Operating (Charging) Voltage: 14.5V
• Resistance: 180 Ohm
• Alternator Type Compatibility: Negatively regulating (negative ground) Bosch alternators
• Brush Intake Diameter: 14 mm

Key Features:

• Direct OE-quality replacement for worn or failed alternator regulators
• Restores proper alternator charging voltage and output stability
• Compatible with a wide range of Bosch internal alternators across multiple Mercedes-Benz platforms
• Sold as a single unit

OEM & Cross-Reference Part Numbers:

• Mercedes-Benz OEM: 002 154 85 06 / 0021548506 / A0021548506
• Metzger Catalog Number: 2390008
• Bosch: 1987237077 / 1197311213
• Also cross-references: 0021548706, 002154850664, A0021549206

This voltage regulator is a critical component of the vehicle's charging system. A failed regulator can result in erratic battery voltage, undercharging, or overcharging conditions. Replacing it with a quality unit like the Metzger 002 154 85 06 restores reliable alternator operation.