OEX Alternator 12V 90A Mitsubishi Style MXA308

This OEX alternator is a 12V, 90A unit identified by part number MXA308. It is listed as a new alternator with a Mitsubishi style fitment, twin leg alternator mount, internal regulator and a 5 groove pulley, so the physical layout and charging specification are both important checks before purchase.

The unit has an inside mounting leg measurement of 79mm, a mount centre to centre measurement of 175mm, a pivot hole diameter of 8mm and an adjusting hole thread of M8x1.25. Those dimensions matter when comparing the alternator against the original unit in the vehicle, especially where bracket spacing and bolt sizes need to match.

This alternator is marked as 12 volt with a 90 amp power rating and a pulley outside diameter of 55mm. It weighs 4.82kg and is supplied as an each unit, which makes it suitable for buyers replacing a worn or failed charging unit and wanting to verify the exact mounting and electrical setup before fitting.

Key Features

• 12V alternator with 90A output
• OEX part number MXA308
• Mitsubishi style design
• Internal regulator
• Twin leg alternator mount
• 5 groove pulley

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: MXA308
• Voltage: 12V
• Power rating: 90A
• Regulator type: Internal
• Alternator mount: Twin leg
• Pulley section: 5 groove

Fitment details to check

• Suits unit make: Mitsubishi
• Fitment family referenced: Subaru
• Fitment list includes Subaru Forester
• Fitment list includes Subaru Impreza
• Fitment list includes Subaru Legacy
• Fitment list includes Subaru Liberty
• Fitment list includes Subaru Outback

Application and Buying Notes

Before ordering, compare the MXA308 part number, Mitsubishi style housing, twin leg mount and the listed dimensions against the alternator already on the vehicle. The 79mm inside mounting legs, 175mm mount centre to centre measurement and M8x1.25 adjusting hole are the most practical points to confirm when matching brackets and bolt locations.

The electrical side also needs checking. This unit is 12V and rated at 90A, with an internal regulator. If the vehicle uses a different voltage, charging output, regulator arrangement or pulley setup, the alternator may not be the correct replacement even if the housing looks similar.

The pulley detail is another useful checkpoint. This alternator has a 55mm outside pulley diameter and a 5 groove pulley section, so the belt profile and belt alignment need to suit the existing drive system. The alternator is listed as new, so it is intended as a replacement unit rather than a remanufactured part.

Fitment information supplied with this item references Mitsubishi as the unit make and also lists Subaru applications. Where a vehicle is shown in the fitment data, it still needs to be checked against the exact part number, mounting style and electrical specification on the vehicle before purchase. That is especially important on charging components, where small differences in brackets or pulleys can prevent a straightforward swap.

The warranty listed is 3 years for passenger use and 1 year for commercial use. That does not remove the need to verify fitment first, but it does give a clear reference point for the intended use category. As with any alternator, confirm the existing wiring connection, mounting points and belt arrangement before fitting to avoid avoidable downtime.

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 MXA308 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, Inside Mounting Legs 79mm, Pivot Hole Diameter 8, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm, Weight 4.82kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA308, Brand OEX, Description OEX Alternator 12V 90A Mitsubishi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR48, Power Rating (Amp) 90, Pulley Section 5 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg.

OEX Alternator 12V 90A Mitsubishi Style. Part number MXA308 should be checked first. Listed voltage is 12. Listed output rating is 90. 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 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MXA308, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility by matching part number MXA308, the Mitsubishi style twin leg mount, the 12V 90A specification, and the listed measurements against the vehicle’s original alternator and application details before ordering.

FAQ

What is the part number for this alternator?

The part number is MXA308.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator with a 90A power rating.

Does it have an internal regulator?

Yes, the regulator type is listed as internal.

What mounting and pulley details are provided?

It has a twin leg alternator mount, 79mm inside mounting legs, 175mm mount centre to centre, an 8mm pivot hole, M8x1.25 adjusting hole, a 55mm pulley outside diameter and a 5 groove pulley section.

What warranty is listed?

The warranty is 3 years for passenger use and 1 year for commercial use.