Mahle Alternator 24V 55A MG446

The MAHLE MG446 is a new 24V alternator with a 55A charge current, supplied as an each unit for applications that match the listed mounting and electrical details. It uses an internal regulator, rotates clockwise (CW), and is supplied without a belt pulley, so pulley style and drive arrangement need to be checked against the vehicle before purchase.

Key mounting dimensions for this alternator include 65mm inside mounting legs, 173mm mount centre to centre, 88.0 mounting points diameter, 63.0 mounting bores distance, and an 11mm adjusting hole diameter. The pivot hole diameter is 12, and the distance from the pulley to the alternator is 64.0, which makes dimensional matching an important part of the identification process.

MAHLE lists this unit as part number MG446, with pin code IR200 and suit unit make MAHLE. It is a 24V, 55A alternator built as a new unit, backed by a one year warranty, and described as complying with international standards for electromagnetic compatibility, manufactured using the latest technologies and materials, and ISO 9001 certified.

Key Features

• 24V alternator with 55A charge current
• Internal regulator
• Clockwise rotation (CW)
• Supplied without belt pulley
• New unit with one year warranty
• Complies with international electromagnetic compatibility standards

Specifications

• Brand: MAHLE
• Product type: Alternator
• Part No.: MG446
• Pin code: IR200
• Voltage: 24V
• Alternator charge current: 55A
• Power rating: 55A
• Regulator type: Internal

Fitment Guidance

• Listed fitment includes IVECO applications, including Eurocargo, Eurostar, Eurotech MP, Eurotech MT, and Eurotrakker.
• Listed fitment also includes Scania 3-Series applications.
• Some fitment entries are shown by model family and year ranges, including IVECO Eurocargo and Scania 3-Series from 1990 onward in the supplied fitment list.
• Confirm the alternator mounting style, electrical specification, and pulley arrangement against the vehicle before ordering.

Application and Buying Notes

This alternator should only be selected where the vehicle calls for a 24V charging system with a 55A output and an internal regulator. The listed part number is MG446, and the mounting setup is specific: twin leg mount, 65mm inside mounting legs, 173mm mount centre to centre, and 88.0 mounting points diameter. Those dimensions are the first checks to make when matching an alternator to an existing unit.

Because this unit is supplied without a belt pulley, you should confirm whether the original alternator uses a pulley that can be transferred or whether a separate pulley arrangement is required. The rotation is clockwise (CW), so rotation must also suit the application. A mismatch in pulley style, rotation, or mounting geometry can prevent installation even when the electrical rating appears correct.

The fitment information supplied points to IVECO and Scania applications, but it still needs to be confirmed against the vehicle’s exact model, year, and existing part details. The safest approach is to match the part number MG446, check the pin code IR200 if you are identifying the connection style, and compare all mounting measurements before fitting.

This is a new MAHLE unit, not a remanufactured alternator, and it carries a one year warranty. That gives a clear baseline for buyers who want a new replacement with known output and regulator type, but the vehicle side of the match still needs careful checking. Alternator selection is best done from the electrical specification, the physical mount dimensions, and the pulley arrangement together, not from one detail alone.

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 MG446 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 65mm, Pivot Hole Diameter 12, Pulley Section Not Applicable, Rotation CW, Voltage 24, Mount Cnt to Cnt 173mm, Alternator Charge Current [A] 55.

Additional published details for cross-checking include Connector / Clamp W, Mounting points diameter 88.0, Packaging length 30.5, Packaging height 20.50, Product Group 2 ALTERNATORS, Part No. MG446, Brand MAHLE, Description Mahle Alternator 24V 55A, Adjusting Hole Diameter 11.

Mahle Alternator 24V 55A. Part number MG446 should be checked first. Listed voltage is 24. Listed output rating is 55. 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 Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MG446, 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.

Compatibility note: Confirm compatibility using the part number MG446, the 24V 55A specification, the internal regulator, CW rotation, and all mounting dimensions before ordering. Where the vehicle fitment is not matched exactly, do not rely on appearance alone.

FAQ

What is the part number for this alternator?

The part number is MG446. The pin code is IR200.

What voltage and output does this alternator have?

It is a 24V alternator with a 55A charge current and 55A power rating.

Does this alternator have an internal regulator?

Yes. The regulator type is internal.

Is a pulley included?

No. The pulleys field states without belt pulley.

What mounting details are listed?

Listed mounting details include twin leg mount, 65mm inside mounting legs, 173mm mount centre to centre, 88.0 mounting points diameter, 63.0 mounting bores distance, 12mm pivot hole diameter, and 11mm adjusting hole diameter.

What vehicles are shown in the fitment information?

The supplied fitment information includes IVECO applications such as Eurocargo, Eurostar, Eurotech MP, Eurotech MT, and Eurotrakker, as well as Scania 3-Series applications. Exact fit should still be confirmed against the vehicle and part details.