Bosch Alternator 24V 140A Part No. 1986A00007

This Bosch alternator is a new 24V, 140A unit with part number 1986A00007. It is listed as an alternator type excluding vacuum pump, with an internal regulator and twin leg mount arrangement, so checking the mounting style and electrical requirements before ordering is important.

The key mounting measurements are 180mm inside mounting legs and 208mm mount centre to centre, with a M12 / 12 pivot hole diameter and M12x1.5 adjusting hole diameter. The shaft diameter is 30mm, and the unit is noted as a long shaft version.

As supplied, this alternator is for Bosch applications and is identified as a new unit. The listed pin code is IR36, the charge current is 140A, and the product carries a one year warranty. If your existing unit is a short shaft version, the listed alternatives are 1986A00003 or BXA9011.

The construction notes point to high quality raw materials, non-recycled copper, application-specific regulators, and premium quality bearings. These details matter on heavy-duty electrical systems where correct fitment, stable charging output, and durable component design are essential.

Key Features

• 24V alternator with 140A charge current
• Bosch part number 1986A00007
• Internal regulator
• Twin leg mount
• Long shaft version
• Excludes vacuum pump

Specifications

• Type: Alternator
• Brand: Bosch
• Voltage: 24V
• Charge current / power rating: 140A
• Part No.: 1986A00007
• Regulator type: Internal
• Alternator type: Excl. vacuum pump
• Alternator mount: Twin leg

Known application groups

• John Deere 770D
• MAN 10.180
• MAN 12.223
• MAN 15.28#
• MAN 26.402
• MAN 26.41#
• MAN 26.423
• MAN 30.362

Application and Buying Notes

Before ordering, match the part number 1986A00007 against your existing alternator and compare the mounting layout carefully. This unit uses a twin leg mount, 180mm inside mounting legs, 208mm mount centre to centre, and M12 / 12 pivot hardware, so the bracket style and hole sizes need to line up with the vehicle installation.

The alternator is rated at 24V and 140A, which makes it important to confirm the vehicle’s electrical system is also 24V. If the machine or truck uses a different voltage, or if the original unit has a different current rating, this part may not be the correct replacement even if the mounting appears similar.

This is a long shaft version and is noted as excluding a vacuum pump. If the existing alternator is a short shaft version, the listed alternatives are 1986A00003 or BXA9011. That makes shaft length and accessory layout two of the most important checks when comparing units.

The regulator is internal and the alternator uses a M12x1.5 adjusting hole with a 30mm shaft diameter. Those details are useful when checking the physical swap, especially on heavy vehicle and machinery applications where several alternator variants can look very similar from the outside.

A recommended additional repair is the V-belt or V-ribbed belt. If the belt shows wear, glazing, cracking, or incorrect tension, it should be assessed at the same time as the alternator so the replacement can be installed into a sound drive system.

The listed construction features are aimed at durability: high quality raw materials, non-recycled copper, application-specific regulators, and premium quality bearings. Even so, the right way to buy is to verify the part number, voltage, mount style, shaft length, and whether the application requires a vacuum pump before fitting it 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 1986A00007 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, Inside Mounting Legs 180mm, Pivot Hole Diameter M12 / 12, Regulator Type Internal, Suits Unit Make Bosch, Note Long shaft version, for short shaft use 1986A00003 or BXA9011, Mount Cnt to Cnt 208mm, Alternator Charge Current [A] 140.

Additional published details for cross-checking include Alternator Type excl. vacuum pump, Packaging length 34.2, Packaging height 27.8, Product Group 2 ALTERNATORS, Part No. 1986A00007, Brand BOSCH, Description Bosch Alternator 24V 140A, Adjusting Hole Diameter M12x1.5, Pin Code IR36.

Bosch Alternator 24V 140A. Part number 1986A00007 should be checked first. Listed voltage is 24. Listed output rating is 140. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 1986A00007, 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 24 and output 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using part number 1986A00007, the 24V 140A specification, long shaft layout, twin leg mount dimensions, and whether your application requires an alternator with or without a vacuum pump. If your original unit is a short shaft version, check 1986A00003 or BXA9011 instead.

FAQ

Is this alternator 24V or 12V?

This alternator is listed as 24V and rated at 140A.

What is the Bosch part number?

The listed part number is 1986A00007.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

Is this a new unit?

Yes. The unit is listed as new, not remanufactured.

Does it suit a vacuum pump application?

No. It is listed as an alternator type excluding vacuum pump.

What should I check before ordering?

Confirm the part number, 24V system voltage, 140A rating, long shaft layout, twin leg mount dimensions, and whether your application needs a unit with or without a vacuum pump.