Mahle Alternator 12V 80A MG540

The Mahle MG540 alternator is a new 12V, 80A unit supplied as each, with an internal regulator and clockwise rotation. It is listed as an alternator with no belt pulley fitted, so matching the pulley arrangement and drive setup on the vehicle is part of the buying check.

Mounting details matter on this unit: it has a twin leg alternator mount, 67mm inside mounting legs, a 12mm pivot hole diameter, an 11mm adjusting hole diameter, and 67.0mm mounting bores distance. The centre-to-centre mounting dimension is 165mm, which should be checked against the existing alternator before ordering.

This Mahle alternator is identified as part number MG540 and pin code IR200. It carries a one year warranty and is described as a new unit, not remanufactured. The shaft diameter is 17mm and the mounting points diameter is 85.0, both of which are useful reference points when comparing against the original part.

Key Features

• 12V alternator with 80A output
• New unit with internal regulator
• Clockwise rotation
• Twin leg alternator mount
• Without belt pulley
• Part number MG540

Specifications

• Brand: Mahle
• Product type: Alternator
• Voltage: 12
• Power rating: 80A
• Alternator charge current: 80A
• Regulator type: Internal
• Rotation: CW
• New / remanufactured: New

Fitment guidance

• Fitment is listed against CASE IH, DEUTZ-FAHR, NEW HOLLAND, and SAME applications.
• Referenced groups include CASE IH 2120, 2130, 2140, 2150 and JX-Series.
• Referenced groups include DEUTZ-FAHR 4065 E, 4080.4 E, Agrofarm, Agrolux, Agromaxx, and Agroplus.
• Referenced groups include NEW HOLLAND 4230, 4430 N, 4430 V, 4835, 5530 HC, 6530 HC, T3, TD, TN, TN-A, TT, and TT4.
• Referenced groups include SAME Antares, Aster, Centurion, Compatto, Delfino, Explorer, Frutteto, Frutteto 2, Galaxy, Laser, Solar, Tiger, and Titan.
• Fitment should still be confirmed against the exact part number and mounting measurements before purchase.

Application and Buying Notes

The main compatibility checkpoints on this Mahle MG540 are the 12V system, 80A output, internal regulator, clockwise rotation, and twin leg mount. If the replacement alternator in the machine differs on any of those points, the part should be checked carefully before ordering.

The mounting dimensions are just as important as the electrical specification. Compare the 67mm inside mounting legs, 12mm pivot hole, 11mm adjusting hole, 67.0mm mounting bores distance, and 165mm centre-to-centre mounting against the existing unit to confirm the alternator will physically sit and align correctly.

This unit is supplied without a belt pulley, so the pulley arrangement on the vehicle needs to be verified. The shaft diameter is 17mm, which is another useful cross-check when comparing the old alternator or the application listing.

Part number MG540 and pin code IR200 are the clearest identifiers for ordering. When matching by application, use the machine model, year, and mounting details together rather than relying on voltage or amperage alone, because those figures can be shared across multiple alternators.

The alternator is described as new and carries a one year warranty. The listed feature also notes compliance with international electromagnetic compatibility requirements and environmentally friendly manufacturing methods, which may be relevant for buyers who are comparing replacement quality and build standard.

If you are replacing an existing alternator, compare the old unit directly where possible. Matching the mount style, rotation, regulator type, shaft diameter, and pulley setup will usually be more reliable than comparing electrical output alone, especially when the vehicle has had previous repairs or alternator changes.

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 MG540 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 67mm, Pivot Hole Diameter 12, Pulley Section Not Applicable, Rotation CW, Suits Unit Make Mahle, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Pulleys without belt pulley, Mounting points diameter 85.0, Packaging width 18.60, Net Weight 4596, Product Group 2 ALTERNATORS, Part No. MG540, Brand MAHLE, Description Mahle Alternator 12V 80A, Adjusting Hole Diameter 11.

Mahle Alternator 12V 80A. Part number MG540 should be checked first. Listed voltage is 12. 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 Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MG540, 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 12 and output 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using part number MG540, pin code IR200, the 12V 80A rating, clockwise rotation, twin leg mount, and the listed mounting measurements before ordering.

FAQ

What is the part number for this alternator?

The part number is MG540, and the pin code listed is IR200.

Is this alternator new or remanufactured?

It is listed as a new alternator, not remanufactured.

What voltage and output does it have?

It is a 12V alternator with an 80A power rating and 80A alternator charge current.

Does it come with a pulley?

No. It is listed as without belt pulley.

What type of regulator does it use?

It uses an internal regulator.

How should fitment be confirmed before buying?

Confirm the application against MG540 and IR200, then compare the mounting measurements, rotation, pulley setup, and 12V 80A specification with the existing alternator.