Bosch Alternator 12V 150A Part No. 1986A00770

This Bosch alternator is a 12V, 150A unit with Part No. 1986A00770, listed as an alternator type excluding vacuum pump. It is supplied as an each item and carries a 12 months warranty.

The alternator uses a single pivoted lever fastening type and is identified with a 150A charge current. For buyers matching a charging system requirement, the voltage, amperage and part number are the key details to check before ordering.

The recommended additional repair is a V-Belt/V-Ribbed Belt. That is a useful checkpoint when replacing the alternator, especially if the drive belt is worn, glazed or due for service at the same time.

Key Features

• 12V electrical system
• 150A alternator charge current
• Part No. 1986A00770
• Alternator type: excl. vacuum pump
• Single pivoted lever fastening type
• Corrosion resistant construction

Specifications

• Brand: Bosch
• Product type: Alternator
• Unit of measure: Each
• Power rating: 150 amp
• Voltage: 12
• Warranty: 12 months
• Manufactured in: China
• Packaging dimensions: 23.9 cm x 20 cm x 20 cm

Fitment guidance

• Listed fitment data includes Mercedes-Benz and Mercedes-Benz S-Class applications.
• Sample applications shown include Mercedes-Benz S-Class 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 and 2006.
• Fitment is not confirmed across all Mercedes-Benz models from the available details, so the part number and charging system configuration should still be checked carefully.

Application and Buying Notes

The most important match points on this alternator are the 12V system, 150A output, Part No. 1986A00770 and the note that it is an alternator type excluding vacuum pump. If the replacement unit differs in any of those areas, it may not suit the vehicle.

The listed corrosion resistant construction and reduction drive are useful product features, but they do not replace fitment checking. Confirm the vehicle application, mounting style, belt arrangement and part number against the existing alternator before ordering.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number 1986A00770 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty 12 Months, Voltage 12, Fastening Type Single pivoted lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 20, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00770.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Alternator 12V 150A, Power Rating (Amp) 150, Alternator Charge Current [A] 150, Alternator Type excl. vacuum pump, Packaging length 23.9, Packaging height 20, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 150A. Part number 1986A00770 should be checked first. Listed voltage is 12. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00770, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999, MERCEDES-BENZ S-CLASS 2000. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm compatibility using Part No. 1986A00770, the 12V 150A specification, the single pivoted lever fastening type and the alternator configuration excluding vacuum pump before purchase.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A00770. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.

What voltage and amperage does this alternator use?

It is a 12V alternator with a 150A charge current and 150 amp power rating. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. It is listed as an alternator type excluding vacuum pump. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment data?

The fitment data lists Mercedes-Benz and Mercedes-Benz S-Class applications, with sample years from 1998 through 2006 for Mercedes-Benz S-Class. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.

What additional repair is recommended with this alternator?

A V-Belt/V-Ribbed Belt is listed as a recommended additional repair. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.

What warranty is supplied with this alternator?

It carries a 12 months warranty. For this listing, part number 1986A00770 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 1998, MERCEDES-BENZ S-CLASS 1999. These details should still be checked against the original unit before ordering.