Bosch Alternator 12V 120A 1986A00823

This Bosch alternator is a 12V, 120A unit identified by part number 1986A00823. It is listed as an alternator passenger application and is supplied as an OE product, which makes the part number and application details the key points to confirm before ordering.

The unit uses direct fastening and is specified as an alternator type excl. vacuum pump. That distinction matters when checking the replacement unit, because the mounting style and alternator design need to match the vehicle’s existing setup, not just the voltage and charge current.

A 120A alternator is selected for the charging demand of the vehicle it is fitted to, so the safest approach is to compare the current unit’s part number, mounting arrangement, and accessory drive setup before purchase. The recommended additional repair item is the V-belt or V-ribbed belt, which is worth checking while the charging system is apart.

Key Features

• Bosch OE product
• 12V charging system
• 120A charge current
• Direct fastening mount
• Alternator type: excl. vacuum pump
• Passenger vehicle alternator

Specifications

• Brand: Bosch
• Product type: Alternator passenger
• Alternator charge current: 120A
• Voltage: 12V
• Part No.: 1986A00823
• Fastening type: Direct fastening
• Alternator type: Excl. vacuum pump
• Warranty: 12 months

Application and Buying Notes

Because fitment data is not listed here, the part number 1986A00823 is the most reliable starting point for checking suitability. Compare that number with the existing alternator and confirm the vehicle uses a Bosch 12V 120A alternator with direct fastening and no vacuum pump arrangement.

The alternator’s charge current rating is 120A, so it should only be fitted where that output and design match the original unit. Even when the physical shape looks similar, differences in mounting, pulley drive, or vacuum pump provision can make a unit unsuitable.

If the alternator is being replaced due to charging complaints, it is sensible to inspect the V-belt or V-ribbed belt at the same time, as Bosch lists this as a recommended additional repair. A worn belt can affect charging performance and may lead to repeat work if it is not addressed during the repair.

This unit is sold each and carries a 12-month warranty. Before ordering, confirm the vehicle application against the part number and the alternator configuration on the vehicle, especially the fastening type and whether the replacement must be an alternator type excl. vacuum pump.

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 1986A00823 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 PASSENGER, Unit of Measure EACH, Warranty 12 Months, Fastening Type Direct fastening, Recommended additional repairs V-Belt/V-Ribbed Belt, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00823, Brand BOSCH, Description Bosch Alternator 12V 120A, Alternator Charge Current [A] 120.

Bosch Alternator 12V 120A. Part number 1986A00823 should be checked first. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00823, 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 passenger in workshop, fleet, trade, agricultural, or construction service, the listed output 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

Compatibility note: Confirm compatibility by matching part number 1986A00823, 12V system voltage, 120A charge current, direct fastening, and the excl. vacuum pump alternator type against the vehicle’s existing unit before purchase.

FAQ

What is the part number for this alternator?

The listed part number is 1986A00823. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What voltage and charge current does it have?

It is a 12V alternator with a 120A charge current. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Does this alternator have a vacuum pump?

No. The alternator type is listed as excl. vacuum pump. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.

How is this alternator mounted?

It uses direct fastening. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Is this an OE product?

Yes. The features list states OE product. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What should I check before buying?

Match the part number 1986A00823, 12V system voltage, 120A charge current, direct fastening, and the excl. vacuum pump design with the vehicle’s existing alternator and application details. For this listing, part number 1986A00823 is the main reference point. Listed output rating is 120. These details should still be checked against the original unit before ordering.