OEX Alternator 12V 120A Mitsubishi Style MXA2108

The OEX MXA2108 is a new 12V alternator rated at 120A and built in Mitsubishi style with a pad mount and internal regulator. It is listed with a 6 groove pulley, 52mm pulley outside diameter, and a mount leg thickness of 50mm, so those physical details should be checked against the vehicle before ordering.

This alternator is supplied under part number MXA2108 and is one of two identical looking units with different regulator functions. OEX notes that confirmation by OE number is recommended, which makes the regulator function and matching application details important checkpoints rather than assuming the unit will swap purely by appearance.

For identification and handling, the unit is listed as each, weighs 5.94kg, and uses pin code IR212 with mount hole diameter noted as 10/10/12. Those are the practical details that matter when matching the alternator to the existing setup, especially where the original unit looks similar but uses a different control arrangement.

Key Features

• 12V alternator with 120A output
• New unit, not remanufactured
• Internal regulator type
• Mitsubishi style, pad mount
• 6 groove pulley
• Part number MXA2108

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Amperage: 120A
• Part number: MXA2108
• Regulator type: Internal
• Mount type: Pad
• Suits unit make: Mitsubishi

Known fitment guidance

• Fitment tokens supplied reference Holden applications, including Holden Calais, Holden Caprice and Holden Commodore.
• Sample applications listed include Holden Calais 2006 through to 2016.
• The fitment data provided does not confirm every engine, series or charging system variation, so the OE number remains the safest match point.
• Because two identical looking alternators are noted with different regulator functions, appearance alone is not enough to confirm interchange.

Application and Buying Notes

When comparing this alternator to the one already on the vehicle, start with the part number MXA2108, the 12V rating, and the 120A output. The unit is also described as Mitsubishi style with an internal regulator and pad mount, so these details need to line up with the existing charging system before the part is fitted.

The physical mounting details matter just as much as the electrical rating. Check the 50mm mount leg thickness, 10/10/12 mount hole diameter, 6 groove pulley, and 52mm pulley outside diameter against the original alternator. If any of those differ, the unit may look close but still not be the correct match.

OEX specifically notes that this is one of two identical looking alternators with different regulator functions. That makes the OE number the best confirmation point. If the vehicle has had previous repairs, replacement wiring, or an alternator change, it is worth comparing the old unit carefully rather than relying on vehicle model name alone.

The supplied fitment references include Holden Calais, Holden Caprice and Holden Commodore applications, with Holden Calais examples shown across 2006 to 2016. Even so, those references are not a substitute for confirming the OE number, regulator type and pulley arrangement on the actual vehicle.

Warranty is listed as 3 years for passenger use and 1 year for commercial use. That does not change the need to match the correct application, but it does give a clear indication of how OEX separates passenger and commercial use when assessing the part after installation.

If you are replacing an alternator due to charging problems, make sure the fault diagnosis is complete before fitting a new unit. A correct alternator still depends on the battery condition, wiring integrity and charging circuit being in proper order, so the safest approach is to verify the whole system as part of the job.

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 MXA2108 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 3yr Passenger 1yr Commercial, Mount Leg Thickness 50mm, Power Rating (Amp) 120, Pulley Section 6 Groove, Suits Unit Make Mitsubishi, Note One of two identical looking alternators, both with different regulator functions. Confirm by OE number., Item Type Alternator, Weight 5.94kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA2108, Brand OEX, Description OEX Alternator 12V 120A Mitsubishi Style - See Note, Mount Hole Diameter 10/10/12, Pin Code IR212, Pulley Outside Diameter 52mm, Regulator Type Internal, Voltage 12, Alternator Mount Pad.

OEX Alternator 12V 120A Mitsubishi Style - See Note. Part number MXA2108 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 Pad. Regulator type is Internal. Pulley configuration is 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MXA2108, 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 by matching part number MXA2108, OE number, regulator function, mounting details and pulley specification before purchase. The alternator is one of two identical looking units with different regulator functions, so the OE reference is essential.

FAQ

What is the part number for this alternator?

The listed part number is MXA2108.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator rated at 120A.

What regulator type does it use?

It uses an internal regulator.

What pulley setup is listed?

The alternator is listed with a 6 groove pulley and a 52mm pulley outside diameter.

What should I confirm before ordering?

Confirm the OE number, regulator function, mounting details and pulley specification. OEX notes that this is one of two identical looking alternators with different regulator functions.