Mahle Alternator 12V 120A MG308

The MAHLE MG308 is a new 12V alternator rated at 120A, supplied as an each unit and listed with part number MG308. It uses an internal regulator and is configured as a twin leg mount, with a CW rotation and no belt pulley fitted.

Key physical details include 82mm inside mounting legs, 82.0mm mounting bores distance, 86.0mm mounting points diameter, an 8mm pivot hole diameter, M8x1.25 adjusting hole diameter, and a 17mm shaft diameter. The unit is noted as dust proof, which is useful to check against the vehicle’s mounting environment and replacement part.

This alternator is listed for Mahle fitment and is described as a 12V, 120A unit with power rating 120A. It is supplied new, carries a one year warranty, and the product information also notes compliance with international electromagnetic compatibility requirements and the use of environmentally friendly technologies and materials.

Key Features

• 12V alternator with 120A output
• New unit, supplied each
• Internal regulator
• Twin leg alternator mount
• CW rotation
• Without belt pulley

Specifications

• Brand: MAHLE
• Part No.: MG308
• Voltage: 12V
• Alternator charge current: 120A
• Power rating: 120A
• Type: Alternator
• Unit of measure: Each
• New / remanufactured: New

Fitment guidance

• Supported fitment groups include CASE IH, CHALLENGER, FORD, FORD TRANSIT, MASSEY FERGUSON, and NEW HOLLAND.
• Sample applications listed include CASE IH FARMALL, CASE IH JX-SERIES, CASE IH MAXXUM, CHALLENGER MT, FORD TRANSIT, MASSEY FERGUSON 6445, MASSEY FERGUSON 6455, MASSEY FERGUSON 6465, NEW HOLLAND 5640, NEW HOLLAND 8160, NEW HOLLAND 8260, and NEW HOLLAND 8360.
• Additional grouped fitment references shown include CASE IH PATRIOT, CASE IH PUMA, FORD 7000-SERIES, FORD 8000-SERIES, MASSEY FERGUSON 6475, MASSEY FERGUSON 6480, MASSEY FERGUSON 7465, MASSEY FERGUSON 7475, MASSEY FERGUSON 7480, and NEW HOLLAND C185, C227, C232, and C238.
• Where a model line is listed, individual year or variant application still needs to match the vehicle’s original alternator arrangement, mount style, pulley setup, and electrical specification.

Application and Buying Notes

Before ordering, confirm the part number MG308 against the removed alternator and check the mount details carefully. The key physical points here are the twin leg mount, 82mm inside mounting legs, 82.0mm mounting bores distance, 86.0mm mounting points diameter, 8mm pivot hole diameter, and M8x1.25 adjusting hole diameter.

The electrical specification is equally important: this unit is 12V and rated at 120A with an internal regulator. If the vehicle originally uses a different voltage, charge output, or regulator arrangement, this alternator should not be assumed to be a direct match.

Pulley configuration must also be checked. This alternator is supplied without a belt pulley, so the existing pulley arrangement, belt drive, and shaft requirements need to be verified before fitment. The shaft diameter is 17mm and the rotation is CW, both of which are useful reference points when comparing to the original unit.

The listed applications cover a range of CASE IH, CHALLENGER, FORD, FORD TRANSIT, MASSEY FERGUSON, and NEW HOLLAND equipment, but model naming alone is not enough to confirm compatibility. Use the part number, physical dimensions, mount style, and charging specification together to avoid ordering the wrong alternator.

The unit is described as dust proof and supplied new with a one year warranty. Those details may be relevant for workshop planning and replacement confidence, but they do not replace a physical comparison with the original alternator and vehicle application details.

If you are replacing a failed alternator, compare the original connector layout, mounting ears, pulley setup, and shaft dimensions before installation. The connecting angle is listed at 60.0°, which can also help when comparing the replacement unit to the one already fitted.

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 MG308 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 Section Not Applicable, Rotation CW, Suits Unit Make Mahle, Note Dust proof, Mount Cnt to Cnt 149mm.

Additional published details for cross-checking include Alternator Charge Current [A] 120, Mounting Bores Distance 82.0, Mounting points diameter 86.0, Packaging width 18.60, Net Weight 5587, Product Group 2 ALTERNATORS, Part No. MG308, Brand MAHLE, Description Mahle Alternator 12V 120A.

Mahle Alternator 12V 120A. Part number MG308 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 Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MG308, 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 part number MG308 and the application details, then verify voltage, 120A output, twin leg mounting, CW rotation, and the no-pulley configuration against the original alternator before purchase.

FAQ

What is the part number for this alternator?

The listed part number is MG308.

What voltage and output does this alternator have?

It is a 12V alternator rated at 120A.

Does this alternator come with a pulley?

No. The listing states it is supplied without a belt pulley.

What type of regulator does it use?

It uses an internal regulator.

What mounting style does it have?

It is listed as a twin leg alternator mount, with 82mm inside mounting legs and 82.0mm mounting bores distance.

Which vehicle groups are listed against this alternator?

The listed fitment groups include CASE IH, CHALLENGER, FORD, FORD TRANSIT, MASSEY FERGUSON, and NEW HOLLAND.