OEX Alternator 12V 90A Mitsubishi Style MXA231

The OEX MXA231 is a new 12V 90A alternator in Mitsubishi style, supplied as an each unit for rotating electrical applications. It is listed with a twin leg alternator mount, 78mm inside mounting legs, an 8mm pivot hole, and an M8x1.25 adjusting hole, so the physical mounting points are the first details to check before ordering.

This unit uses an internal regulator and a 4 groove pulley with a 63mm outside diameter. Those details matter when matching the alternator to the vehicle or machine drive setup, because pulley section, mounting style, and regulator type all need to align with the original application.

The part number is MXA231 and the pin code is IR49. OEX lists this alternator as suitable for Mitsubishi units, and the fitment data provided also links it to a wide range of applications including Ford Courier, Ford Econovan, Hyundai Lantra, Hyundai Sonata, Kia Ceres, Mazda Titan, Mercedes-Benz A-Class, and several Caterpillar and Clark applications. Matching the part number and mount details remains essential.

At 5.34kg, this is a substantial rotating electrical component, so it is worth confirming clearance, belt alignment, and connector style before fitting. The warranty listed is 3 years for passenger use and 1 year for commercial use.

Key Features

• New OEX alternator
• 12V, 90A output
• Mitsubishi style unit
• Internal regulator
• 4 groove pulley
• Twin leg alternator mount

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 90A
• New / remanufactured: New
• Suits unit make: Mitsubishi
• Alternator mount: Twin leg
• Inside mounting legs: 78mm

Known application groups provided

• Caterpillar 308B and Caterpillar forklift applications are listed in the supplied fitment data.
• Clark CGC20, CGC25, CGC32, CGP20, CGP25, CGP30 and CP365D/G/L application groups are listed in the supplied fitment data.
• Ford Courier, Ford Econovan and Ford Trader application groups are listed in the supplied fitment data.
• Hyundai Lantra and Hyundai Sonata application groups are listed in the supplied fitment data.
• Kia Ceres application groups are listed in the supplied fitment data.
• Mazda T-Series, Mazda Titan and Mazda E-Series application groups are listed in the supplied fitment data.
• Mercedes-Benz A-Class application groups are listed in the supplied fitment data.
• Mitsubishi Challenger, Express, FTO, Galant, Lancer, Nimbus, RVR, Starwagon and Triton application groups are listed in the supplied fitment data.

Application and Buying Notes

Before ordering, check the part number MXA231 against the original alternator or your vehicle records, then compare the mounting layout: twin leg mount, 78mm inside mounting legs, 175mm mount centre to centre, 8mm pivot hole and M8x1.25 adjusting hole. These are the practical measurements that usually decide whether the unit will physically suit the application.

It is also important to confirm the pulley arrangement. This alternator has a 4 groove pulley with a 63mm outside diameter, so belt type and belt alignment need to match. A pulley that does not suit the belt system can cause noise, slip or installation issues, even when the electrical rating is otherwise correct.

The electrical side is equally important. This is a 12V, 90A alternator with an internal regulator, so the charging system on the vehicle or machine should be checked for the same voltage and regulator arrangement. If the original unit uses a different regulator setup, connector layout or pulley configuration, the correct replacement may be different even if the application family looks similar.

Because the fitment list covers multiple makes and models, it is best to treat the supported applications as a guide rather than a guarantee. Use the measurements, pin code IR49, part number MXA231 and the original unit details to confirm you are comparing like with like before fitting or allocating it to stock.

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 MXA231 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 78mm, Pivot Hole Diameter 8, Pulley Outside Diameter 63mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm, Weight 5.34kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA231, Brand OEX, Description OEX Alternator 12V 90A Mitsubishi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR49, Power Rating (Amp) 90, Pulley Section 4 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg.

OEX Alternator 12V 90A Mitsubishi Style. Part number MXA231 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 4 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

Compatibility note: Confirm fitment using part number MXA231, pin code IR49, the Mitsubishi style twin leg mounting layout, and the measured specifications before purchase. Application lists can include multiple vehicle and equipment groups, so final confirmation should always be made against the original alternator and the vehicle or machine details.

FAQ

What is the part number for this alternator?

The listed part number is MXA231.

What voltage and output does it have?

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

Is this alternator new or remanufactured?

It is listed as new.

What type of regulator does it use?

It uses an internal regulator.

What pulley setup is listed?

It has a 4 groove pulley with a 63mm outside diameter.

How should I confirm compatibility before buying?

Check MXA231 against the original part, then compare the twin leg mount, 78mm inside mounting legs, 175mm mount centre to centre, 8mm pivot hole, M8x1.25 adjusting hole, pin code IR49 and the 12V 90A rating.