BBB Industries N14820 Alternator

BBB Industries N14820 Alternator Overview

The BBB Industries NEW ALTERNATOR N14820 is a 12-volt, 70-amp replacement alternator built for select Mercedes-Benz charging system applications. It uses an internal voltage regulator, clockwise rotation, and a conventional 6-groove serpentine pulley setup for direct-fit service on listed vehicles.

Compatible With Mercedes-Benz 190E, 300D, 300CE, 300TE, 300E, 300SDL, and 300TD applications where the OE-style Bosch alternator configuration is required. The N14820 is a practical choice when restoring charging output on older Mercedes-Benz electrical systems.

Key Features

• 12-volt alternator with 70-amp output
• Internal voltage regulator for integrated control
• Clockwise rotation
• Conventional pulley design with 6 serpentine belt grooves
• Air-cooled design with external fan type
• OE manufacturer reference: Bosch
• Negative polarity configuration
• Plug clock position: 9
• Outside pulley diameter: 2 in. / 50 mm

Detailed Description

BBB Industries NEW ALTERNATOR N14820 is engineered as an OE-style replacement for Mercedes-Benz charging systems that use a Bosch alternator layout. The 70-amp rating supports the electrical demands of the listed 1986-1993 Mercedes-Benz models, while the internal regulator helps maintain stable charging performance. This alternator is specified with a 6-groove serpentine belt interface, clockwise rotation, and air cooling with an external fan type.

This part cross-references Bosch 0-120-488-126 and 0-120-489-325 for the same application. It is a strong match for Mercedes-Benz 190E and 300D service work where the original alternator configuration must be maintained.

What It Helps Address

• Low battery charging output
• Battery warning light concerns related to alternator performance
• Dim lights or unstable electrical operation
• Charging system failure from a worn OE alternator
• Restoration of proper alternator output on Mercedes-Benz 190E and 300D models

Installation Notes and Tips

Verify pulley groove count, plug clock position, rotation direction, and regulator style against the removed unit before installation. This alternator is listed without a pulley included, so the existing pulley configuration should be confirmed during service. Always inspect the belt condition, electrical connectors, and charging circuit before completing the repair.

Fits 1986-1988 Mercedes-Benz 190E, N/A; Fits 1991-1993 Mercedes-Benz 190E, N/A; Fits 1987-1987 Mercedes-Benz 300D, N/A; Fits 1990-1991 Mercedes-Benz 300D, N/A; Fits 1992-1993 Mercedes-Benz 300D, N/A; Fits 1986-1987 Mercedes-Benz 300E, N/A; Fits 1988-1989 Mercedes-Benz 300CE, N/A; Fits 1988-1989 Mercedes-Benz 300TE, N/A; Fits 1986-1987 Mercedes-Benz 300SDL, N/A; Fits 1987-1987 Mercedes-Benz 300TD, N/A.

Quality Assurance

BBB Industries supplies replacement electrical components for service applications, and this NEW ALTERNATOR is built to match the listed OE-style Bosch configuration for the specified Mercedes-Benz vehicles.