Bosch Alternator 24V 140A Part No. 1986A00003

The Bosch Alternator 24V 140A is a new rotating electrical unit, supplied as an each item and identified by part number 1986A00003. It is rated at 24 volts and 140 amps, with an internal regulator and a twin leg alternator mount for applications that match these physical and electrical requirements.

This alternator is listed as an alternator type excl. vacuum pump, with a short shaft noted for Scania applications. Key mounting dimensions include 180mm inside mounting legs, 208mm mount centre to centre, a 12mm pivot hole diameter, and an M12x1.5 adjusting hole diameter.

It is a Bosch unit with a one year warranty and is described as using high quality raw materials, non-recycled copper, vehicle-specific regulators, and premium quality bearings. For buyers matching a replacement alternator, the part number 1986A00003 and the fitment details should be checked carefully before ordering.

Key Features

• 24V alternator rated at 140A
• Internal regulator
• Twin leg alternator mount
• Alternator type excl. vacuum pump
• Short shaft for Scania applications
• New unit, supplied each

Specifications

• Part No.: 1986A00003
• Voltage: 24V
• Charge current / power rating: 140A
• Regulator type: Internal
• Alternator mount: Twin leg
• Fastening type: Double pivot lever
• Inside mounting legs: 180mm
• Mount centre to centre: 208mm

Listed fitment applications

• MAN 26.402
• MAN 26.41#
• MAN 26.423
• MAN 30.362
• MAN 30.402
• MAN TGA
• SCANIA
• SCANIA 4 - SERIES

Application and Buying Notes

Before ordering, compare the part number 1986A00003, the 24V rating, and the 140A output with the original alternator being replaced. The mounting layout also matters: this unit has 180mm inside mounting legs, 208mm mount centre to centre, a 12mm pivot hole, and an M12x1.5 adjusting hole, so the physical fit needs to line up with the vehicle setup.

The alternator is listed as type excl. vacuum pump and includes a short shaft note for Scania applications. That makes the exact application important, particularly where the original unit uses a different shaft arrangement or accessory layout. Confirm the original mounting style is twin leg and that the replacement specification matches the vehicle before fitting.

The unit is described as new, with an internal regulator and premium quality bearings. It is also noted that a V-belt or V-ribbed belt may be a recommended additional repair item, so it is sensible to inspect the belt condition at the same time as the alternator replacement.

For compatibility, the safest approach is to match the Bosch part number 1986A00003 against the vehicle’s existing alternator details and any supporting application information. If the original unit differs in mounting, shaft length, regulator type, or vacuum pump arrangement, do not assume interchangeability without checking the vehicle application carefully.

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 1986A00003 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 12, Regulator Type Internal, Suits Unit Make Bosch, Note Short shaft for Scania applications, 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. 1986A00003, Brand BOSCH, Description Bosch Alternator 24V 140A, Adjusting Hole Diameter M12x1.5, Pin Code IR36.

Bosch Alternator 24V 140A. Part number 1986A00003 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 1986A00003, 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: Please confirm fitment using part number 1986A00003, the 24V 140A specification, and the mounting and application details before purchase.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A00003. For this listing, part number 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is rated at 24V with a 140A charge current / power rating. For this listing, part number 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. 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 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. These details should still be checked against the original unit before ordering.

What mounting details are provided?

It is a twin leg alternator mount with 180mm inside mounting legs, 208mm mount centre to centre, a 12mm pivot hole, and an M12x1.5 adjusting hole. For this listing, part number 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. These details should still be checked against the original unit before ordering.

Is this alternator for units with a vacuum pump?

No. It is listed as an alternator type excl. vacuum pump. For this listing, part number 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. These details should still be checked against the original unit before ordering.

What fitment applications are listed?

Listed applications include MAN 26.402, MAN 26.41#, MAN 26.423, MAN 30.362, MAN 30.402, MAN TGA, SCANIA, SCANIA 4 - SERIES, SCANIA 4 - SERIES BUS, and SCANIA K - SERIES. For this listing, part number 1986A00003 is the main reference point. Listed voltage is 24. Listed output rating is 140. Published fitment references include MAN 26.402, MAN 26.402 1997, MAN 26.402 1998. These details should still be checked against the original unit before ordering.