Bosch Alternator 24V 80A 1986A00920

This Bosch alternator is a new 24V, 80A unit, part number 1986A00920. It is listed as an alternator type excluding vacuum pump, with internal regulator, clockwise rotation and a 8 groove pulley.

The mounting layout is a twin leg design with three-point mounting. Key dimensions provided are 101mm inside mounting legs, 197mm mount centre to centre, 13mm pivot hole diameter and 11mm adjusting hole diameter.

It is supplied as a new rotating electrical component and carries a 12 months warranty. The unit is made in China and is specified for Bosch applications.

For buyers matching an existing unit, the main identifiers are the Bosch brand, 24V voltage, 80A charge current, part number 1986A00920 and the twin leg mounting arrangement. These details are the best starting point before ordering.

Key Features

• Bosch alternator, 24V 80A
• New unit with internal regulator
• Twin leg mount with three-point fastening
• Clockwise rotation
• 8 groove pulley
• Alternator type excludes vacuum pump

Specifications

• Part number: 1986A00920
• Voltage: 24V
• Power rating: 80A
• Charge current: 80A
• Regulator type: Internal
• Rotation: CW
• Mount type: Twin Leg
• Fastening type: Three-point mounting

Fitment guidance

• Supported fitment includes Volvo applications.
• Fitment references Volvo FH, Volvo FH II, Volvo FH16, Volvo FH16 II, Volvo FM, Volvo FM II and Volvo FMX.
• Sample application data includes Volvo FH 2005, Volvo FH 2006, Volvo FH 2007 and later FH entries shown in the fitment preview.
• Always confirm the existing alternator’s mounting style, pulley setup and part number before ordering.

Application and Buying Notes

The most important checks on this alternator are the 24V electrical system, 80A output, twin leg mount and three-point mounting arrangement. The listed 101mm inside mounting legs and 197mm mount centre to centre are critical dimensions, as a close visual match is not enough when the fixing points differ.

The pulley detail matters as well. This unit uses an 8 groove pulley with a 72mm outside diameter, so the belt type and pulley profile on the vehicle need to match. The listing also notes recommended additional repairs are V-Belt or V-Ribbed Belt, which is worth checking if the existing belt shows wear.

Because this alternator is specified as excluding a vacuum pump, it should only be considered where the vehicle’s original unit matches that arrangement. The internal regulator specification is another key point, since regulator type must line up with the application and wiring setup.

If you are replacing an existing Bosch alternator, compare the part number 1986A00920, the mount measurements, the clockwise rotation and the pulley section before placing the order. Those details give the clearest confirmation that the unit is the correct style for the vehicle.

A 12 months warranty is included, but warranty cover does not replace the need to confirm application details first. The safest approach is to match the original unit against the Bosch brand, 24V rating, 80A output and the physical mounting dimensions listed here.

For commercial vehicle electrical parts, it is also wise to inspect the belt condition, mounting points and surrounding components while the alternator is being replaced. The listing’s recommended belt repair note reflects that related wear items may need attention at the same time.

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 1986A00920 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, Inside Mounting Legs 101mm, Pivot Hole Diameter 13, Pulley Outside Diameter 72mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Fastening Type Three-point mounting, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 22.5, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00920, Brand BOSCH, Description Bosch Alternator 24V 80A, Adjusting Hole Diameter 11, Pin Code IR98.

Bosch Alternator 24V 80A. Part number 1986A00920 should be checked first. Listed voltage is 24. Listed output rating is 80. 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. 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 1986A00920, 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 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching the part number 1986A00920, 24V 80A output, twin leg three-point mounting, 101mm inside mounting legs, 197mm mount centre to centre, 8 groove pulley and the vehicle’s original application details before ordering.

FAQ

What is the part number for this Bosch alternator?

The part number is 1986A00920.

What voltage and output does this alternator have?

It is a 24V alternator rated at 80A.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

What mount type does this alternator use?

It uses a twin leg alternator mount with three-point mounting.

Which Volvo applications are referenced for fitment?

The fitment references Volvo FH, FH II, FH16, FH16 II, FM, FM II and FMX, with sample FH entries shown for model years including 2005, 2006 and 2007.

Is this a new unit or a remanufactured unit?

It is listed as a new alternator and is supplied with a 12 months warranty.