Mahle Alternator 12V 120A MG286

Mahle Alternator 12V 120A, part number MG286, is a new rotating electrical unit supplied as each. It is rated at 12 volts and 120 amps, with an internal regulator and clockwise rotation. For buyers matching a replacement alternator, the key identifiers here are the 12V system, 120A charge output, and the MG286 part number.

This unit uses a twin leg alternator mount with inside mounting legs at 82mm, a mount centre to centre measurement of 149mm, and an M8x1.25 adjusting hole diameter. The pivot hole diameter is 8mm. Those mounting dimensions are the first checks to make against the existing unit before ordering, especially where bracket spacing and leg style need to line up exactly.

The alternator comes with a V-ribbed belt pulley in an 8 groove section, a pulley outside diameter of 61mm, and a connecting angle of 60.0 degrees. It is noted as having a suppression coil on the D+ terminal, and the insulated return is listed as No. For electrical replacement work, these details matter as much as the amp rating because pulley style, terminal arrangement, and mounting geometry all need to suit the vehicle or machine.

Key Features

• 12V alternator with 120A charge current
• Internal regulator
• New unit
• Twin leg alternator mount
• V-ribbed belt pulley, 8 groove
• Clockwise rotation

Specifications

• Part number: MG286
• Brand: Mahle
• Product type: Alternator
• Voltage: 12V
• Power rating: 120A
• Regulator type: Internal
• Rotation: CW
• Pulley outside diameter: 61mm

Compatible Applications

• Case IH Maxxum
• Case IH MXU Maxxum
• Case IH Puma
• Caterpillar 311
• Caterpillar 311C
• Caterpillar 311CU
• Caterpillar 312
• Caterpillar 312B

Application and Buying Notes

Before ordering, compare the MG286 part number, the 12V system, and the 120A output against the unit being replaced. Alternators can look similar while still differing in mount style, pulley setup, or terminal details, so matching the written identifiers is important, not just the appearance of the housing.

The mount dimensions are especially important on this unit: twin leg mount, 82mm inside mounting legs, 149mm mount centre to centre, and an 8mm pivot hole. The adjusting hole is M8x1.25, which is another useful checkpoint if you are confirming bracket compatibility on the vehicle or equipment.

Pulley and drive details should also be checked carefully. This alternator has an 8 groove V-ribbed belt pulley, a 61mm pulley outside diameter, and clockwise rotation. If the belt style, groove count, or rotation do not match the original setup, the replacement should not be treated as a direct fit without further confirmation.

Electrical connection details matter as well. The alternator is listed with an internal regulator, insulated return set to No, and a suppression coil on the D+ terminal. These points can affect how the unit connects in the vehicle, so verify the terminal arrangement and charging system layout before installation.

This is a new Mahle alternator and it carries a one year warranty. The unit weight is 5.74kg, which can be useful as a reference when comparing a removed part, but weight alone should never be used to confirm compatibility. Use the part number and the physical measurements together for the most reliable check.

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 MG286 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 82mm, Pivot Hole Diameter 8, Pulley Outside Diameter 61mm, Regulator Type Internal, Suits Unit Make Mahle, Note With suspression coil on D+ terminal, Mount Cnt to Cnt 149mm.

Additional published details for cross-checking include Insulated Return No, Pulleys with V-ribbed belt pulley, Connecting Angle [Degree] 60.0, Number of belts 8, Packaging length 24.8, Packaging height 17.50, Weight 5.74kg, Product Group 1 ROTATING ELECTRICAL, Part No. MG286, Brand MAHLE.

Mahle Alternator 12V 120A. Part number MG286 should be checked first. Listed voltage is 12. Listed output rating is 120. 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 MG286, 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 fitment using the MG286 part number, the 12V 120A rating, the twin leg mount measurements, and the 8 groove pulley details before purchase. Where applications are listed, they are only a guide and should still be checked against the exact vehicle or machine specification.

FAQ

What is the part number for this alternator?

The part number listed is MG286.

What voltage and output does this alternator have?

It is a 12V alternator with a 120A charge current rating.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal.

What pulley setup does it use?

It has a V-ribbed belt pulley with an 8 groove section and a pulley outside diameter of 61mm.

What mounting details should I check before buying?

Check the twin leg mount style, 82mm inside mounting legs, 149mm mount centre to centre, 8mm pivot hole diameter, and M8x1.25 adjusting hole diameter.

Which applications are listed for this alternator?

Listed applications include Case IH Maxxum, Case IH MXU Maxxum, Case IH Puma, Caterpillar 311 and related models, Caterpillar 910G, Caterpillar M322C, New Holland T5, T6, T6000, T7, TD 5, TL-A, and Steyr Profi. These should still be confirmed against the exact machine specification.