Bosch Alternator 12V 120A 1986A00838

This Bosch alternator is a 12V unit with a 120A power rating and part number 1986A00838. It is supplied as one each and sits in the rotating electrical product group, which makes it a straightforward option for buyers replacing a worn alternator in a 12-volt charging system.

The listed warranty is 12 months, and the construction note states it is made from the highest quality raw materials to support long life and optimal performance. As with any alternator purchase, the key check is matching the part number 1986A00838 and confirming the vehicle’s charging system requirements before ordering.

If you are comparing alternators, the most useful figures here are the 12V operating voltage and 120A output rating. Those two details should be matched carefully to the vehicle application, particularly where the original unit’s output or mounting arrangement needs to be kept consistent.

Key Features

• Bosch alternator
• 12V operating voltage
• 120A power rating
• Part number 1986A00838
• Supplied as each
• 12 months warranty

Specifications

• Brand: Bosch
• Product type: Alternator
• Description: Bosch Alternator 12V 120A
• Voltage: 12
• Power rating: 120A
• Part No.: 1986A00838
• Unit of measure: Each
• Warranty: 12 months

Application and Buying Notes

Before purchasing, confirm the existing alternator’s part number, 1986A00838, and check that the vehicle uses a 12V charging system with a 120A alternator specification. Alternators are not a one-size-fits-all part, so the voltage and output rating are as important as the physical unit itself.

If the original alternator has a different amperage rating, the replacement may still look similar but may not be the correct match for the application. The safest approach is to verify the part number, charging system voltage, and any vehicle-specific application details against the removed unit or the vehicle records.

This alternator is listed as a Bosch rotating electrical component and is sold individually. That makes it suitable for buyers who are replacing one unit only, but it also means you should check whether any related charging-system issues need attention at the same time, such as wiring condition, belt drive condition, or battery health, before fitting the replacement.

The stated construction note refers to high-quality raw materials aimed at long life and optimal performance, but the correct outcome still depends on matching the application properly. Use the 12V and 120A figures as your main compatibility checkpoints, and only proceed once the replacement matches the vehicle’s requirements and the part number aligns.

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 1986A00838 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, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00838, Brand BOSCH, Description Bosch Alternator 12V 120A, Power Rating (Amp) 120.

Additional published details for cross-checking include Product Group 2 ALTERNATORS.

Bosch Alternator 12V 120A. Part number 1986A00838 should be checked first. Listed voltage is 12. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00838, 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 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 fitment by matching part number 1986A00838, 12V system voltage, and 120A output against the vehicle application before ordering.

FAQ

What is the voltage of this Bosch alternator?

It is a 12V alternator. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What is the output rating?

The listed power rating is 120A. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is 1986A00838. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Is this alternator sold as a pair or individually?

It is supplied as each, so one alternator per order unit. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What warranty is listed?

The listed warranty is 12 months. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

How should fitment be checked?

Confirm the part number 1986A00838, the 12V system voltage, and the 120A output rating against the vehicle application and the removed unit before buying. For this listing, part number 1986A00838 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.