Bosch Alternator 24V 120A 1986A01022

The Bosch Alternator 24V 120A is a heavy commercial rotating electrical unit supplied as an OE product and identified with part number 1986A01022. It is a 24 volt alternator with a 120 amp charge current, and it is listed as an alternator type excl. vacuum pump.

This unit carries OEM number 0124655331 and is manufactured in Spain. For buyers working on a compatible heavy commercial application, those identifiers are the most reliable reference points when checking an alternator replacement against the vehicle or existing part.

The fastening type is listed as Double Pivot Lever, and the recommended additional repair is a V-Belt/V-Ribbed Belt. As with any charging system component, the alternator should be matched carefully to the application and compared against the original part number and physical mounting arrangement before purchase.

Key Features

• OE product
• 24V heavy commercial alternator
• 120A charge current
• Excl. vacuum pump
• Double Pivot Lever fastening
• Manufactured in Spain

Specifications

• Brand: Bosch
• Part No.: 1986A01022
• OEM Number: 0124655331
• Alternator Charge Current [A]: 120
• Type: Alternator Heavy Comm
• Alternator Type: excl. vacuum pump
• Fastening Type: Double Pivot Lever
• Warranty: One Year

Verified fitment applications

• Volvo FH
• Volvo FH II
• Volvo FM
• Volvo FM II
• Volvo FMX
• Volvo FH 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
• Volvo FH II 2012

Application and Buying Notes

Before ordering, compare the Bosch part number 1986A01022 and OEM number 0124655331 against the alternator currently fitted to the vehicle. The listed 24V, 120A specification is important because a charging system mismatch can create installation issues or charging complaints, especially on heavy commercial Volvo applications.

This alternator is listed as excl. vacuum pump, so the physical design must match the vehicle setup exactly. Confirm the mounting arrangement, the Double Pivot Lever fastening type, and the available space around the unit before fitting, as the wrong alternator configuration can differ even when the voltage looks similar.

Packaging dimensions are listed as 28 x 22.5 x 22.5, which may assist with bench handling and freight planning. For workshop use, the practical checkpoint remains the same: match the part number, confirm the mounting style, and verify the vehicle application before assuming interchangeability.

The fitment information supplied points to Volvo FH, FH II, FM, FM II and FMX applications, including FH model years from 2005 through 2012 and FH II 2012. Even with those application references, it is still best practice to confirm the existing unit and vehicle details because alternator configurations can vary within a model range.

If you are replacing a failed charging component, the safest approach is to inspect the original alternator label and compare it with the Bosch identifiers on this unit. A 24V 120A heavy commercial alternator is not a universal fit, so careful checking of the part number, OEM number, fastening type and vehicle model remains essential.

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 1986A01022 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 HEAVY COMM, Unit of Measure EACH, Warranty One Year, Alternator Charge Current [A] 120, Alternator Type excl. vacuum pump, Packaging length 28, Packaging height 22.5, Product Group 2 ALTERNATORS, Part No. 1986A01022.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Alternator 24V 120A, OEM Number 0124655331, Fastening Type Double Pivot Lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 22.5, Manufactured in Spain, Product Group 1 ROTATING ELECTRICAL.

Bosch Alternator 24V 120A. Part number 1986A01022 should be checked first. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A01022, 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 heavy comm in workshop, fleet, trade, agricultural, or construction service, the listed output 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching Bosch part number 1986A01022, OEM number 0124655331, the 24V 120A specification, and the excl. vacuum pump mounting details against the vehicle before ordering.

FAQ

What is the voltage and charge output of this alternator?

It is a 24V alternator with a 120A charge current. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.

What part number should I match for ordering?

The listed Bosch part number is 1986A01022, and the OEM number is 0124655331. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. The alternator type is listed as excl. vacuum pump. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment information?

The supplied fitment references Volvo FH, FH II, FM, FM II and FMX, including FH model years from 2005 through 2012 and FH II 2012. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.

What mounting style is listed for this alternator?

The fastening type is Double Pivot Lever. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.

Is there a recommended related repair item?

Yes. The recommended additional repair is a V-Belt/V-Ribbed Belt. For this listing, part number 1986A01022 is the main reference point. Listed output rating is 120. Published fitment references include VOLVO FH, VOLVO FH 2005, VOLVO FH 2006. These details should still be checked against the original unit before ordering.