Bosch Alternator 12V 150A 1986A00586

This Bosch alternator is a new 12V unit with a 150A power rating and part number 1986A00586. It is an OE product in the rotating electrical group, supplied as an alternator only and specified as excluding a vacuum pump.

The unit uses a pad alternator mount with foot-mounted fastening, a clockwise rotation, and an internal regulator. Key measurements listed are a 57mm pulley outside diameter, 47mm mount centre-to-centre, and 50mm mount leg thickness, so those points are worth checking against the existing unit before ordering.

A 8 groove pulley is fitted, and the recommended additional repair is a V-belt/V-ribbed belt. That makes belt condition an important part of the job, especially where the original belt shows wear, glazing, or noise. The alternator is manufactured in China and sold each.

For buyers working from the vehicle rather than the old part, the most reliable identifiers here are Bosch, 12V, 150A, and 1986A00586. Those details, together with the mount style and pulley configuration, are the practical checks to confirm before fitting.

Key Features

• Bosch OE product
• New alternator, not remanufactured
• 12V system
• 150A charge current
• Internal regulator
• 8 groove pulley

Specifications

• Part No.: 1986A00586
• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Power rating: 150A
• Alternator charge current: 150A
• New / remanufactured: New
• Regulator type: Internal

Application and Buying Notes

Confirm the part number 1986A00586 against the alternator you are removing before you order. The mounting style on this unit is pad mount with foot-mounted fastening, and the listed mount centre-to-centre measurement is 47mm with a 50mm mount leg thickness, so matching the physical layout is just as important as matching the Bosch name and 12V 150A rating.

The pulley is specified as 8 groove with a 57mm outside diameter, so the belt must suit that configuration. If the vehicle uses a V-belt or V-ribbed belt, the belt condition should be checked at the same time because the listed recommended additional repair is the belt itself.

This alternator is described as excluding a vacuum pump, which matters on applications where the original unit may have a different accessory arrangement. The internal regulator and clockwise rotation are also important checkpoints, especially when comparing to a removed unit that may appear similar at first glance.

Use the old unit, mounting points, pulley count, and part number together when verifying compatibility. If any of those details do not line up, pause before installation and confirm the application with the vehicle details and the alternator identification already fitted to the vehicle.

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 1986A00586 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 One Year, Power Rating (Amp) 150, Pulley Section 8 Groove, Rotation CW, Alternator Mount Pad, New / Reman. New, Fastening Type Foot-mounted, Recommended additional repairs V-Belt/V-Ribbed Belt.

Additional published details for cross-checking include Packaging width 20, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00586, Brand BOSCH, Description Bosch Alternator 12V 150A, Mount Leg Thickness 50mm, Pulley Outside Diameter 57mm, Regulator Type Internal, Voltage 12.

Bosch Alternator 12V 150A. Part number 1986A00586 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.

Mount style is Pad. Regulator type is Internal. Pulley configuration is 8 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 1986A00586, 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.

Compatibility note: Confirm fitment by matching Bosch part number 1986A00586, 12V system requirements, 150A output, pad mount/foot-mounted configuration, 8 groove pulley, clockwise rotation, and the exclusion of a vacuum pump against the vehicle and the removed alternator.

FAQ

What type of alternator is this?

It is a Bosch alternator, new, with a 12V system and 150A power rating. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

What is the part number?

The listed part number is 1986A00586. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

What pulley setup does it use?

It has an 8 groove pulley with a 57mm outside diameter. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

Is a vacuum pump included?

No. The alternator type is listed as excluding a vacuum pump. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

What should I check before buying?

Check the part number 1986A00586, 12V rating, 150A output, pad mount and foot-mounted layout, clockwise rotation, and the 8 groove pulley against the unit being replaced. For this listing, part number 1986A00586 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.