OEX Alternator 12V 90A Mitsubishi Style MXA398

The OEX MXA398 is a new 12V, 90A alternator in Mitsubishi style, supplied as an each unit for rotating electrical applications. It uses a twin leg alternator mount, with 78mm inside mounting legs, an 8mm pivot hole diameter, and an M8 x 1.25 adjusting hole.

This alternator has an internal regulator and a 4 groove pulley section, so those details should be checked against the vehicle’s existing unit before ordering. The listed mount centre to centre measurement is 175mm, and the unit weight is 5.5kg.

For buyers comparing replacement alternators, the most useful identifiers here are the OEX brand, part number MXA398, 12V voltage, and 90 amp output. Those details are the first checkpoints when matching an alternator to the vehicle and the original fitment.

OEX states its products are sourced from original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factories used to support engineering, testing, and quality control procedures. The warranty listed is 3 years for passenger use and 1 year for commercial use.

Key Features

• New alternator, not remanufactured
• 12V, 90A output
• Mitsubishi style unit
• Internal regulator
• 4 groove pulley section
• Twin leg alternator mount

Specifications

• Brand: OEX
• Part No.: MXA398
• Product Type: Alternator
• Voltage: 12V
• Power Rating: 90A
• Regulator Type: Internal
• New / Reman.: New
• Suit Unit Make: Mitsubishi

Known application groups

• Mitsubishi
• Mitsubishi Outlander
• Mitsubishi Triton
• Zhongxing (ZX Auto)
• Zhongxing (ZX Auto) Grand Tiger

Application and Buying Notes

Before ordering, compare the part number MXA398 with the original alternator and check the physical mounting details: twin leg mount, 78mm inside mounting legs, 175mm mount centre to centre, 8mm pivot hole diameter, and M8 x 1.25 adjusting hole. These measurements matter as much as the electrical rating because alternators that look similar can still differ at the brackets and pulley.

The 12V, 90A rating and internal regulator are key electrical checks. If the existing unit is a different voltage, amperage, regulator type, or pulley configuration, this alternator may not be the correct replacement even if the body style appears close.

The pulley section is listed as 4 groove, so confirm the belt setup on the vehicle before purchase. Matching the pulley groove count is important for belt alignment and drive compatibility.

This unit is listed as a Mitsubishi style alternator and the fitment data includes Mitsubishi, Mitsubishi Outlander, Mitsubishi Triton, Zhongxing (ZX Auto), and Zhongxing (ZX Auto) Grand Tiger applications. Even within those groups, the correct replacement still needs to be verified against the vehicle’s current alternator and mounting arrangement.

The listed warranty is 3 years for passenger use and 1 year for commercial use. That warranty class should be considered alongside how the vehicle is used, especially if the alternator is for commercial duty where operating conditions can be more demanding.

If you are unsure, compare the original unit’s tag, mounting ears, pulley type, and regulator arrangement before fitting. Alternators are best matched on both the electrical specification and the mechanical fit, not on appearance alone.

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 MXA398 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 Section 4 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. MXA398, Brand OEX, Description OEX Alternator 12V 90A Mitsubishi Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR70, Power Rating (Amp) 90, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm.

OEX Alternator 12V 90A Mitsubishi Style. Part number MXA398 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.

For part number MXA398, 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.

Available application references include MITSUBISHI OUTLANDER, MITSUBISHI OUTLANDER 2001, MITSUBISHI OUTLANDER 2002, MITSUBISHI OUTLANDER 2003, ZHONGXING (ZX AUTO) GRAND TIGER, ZHONGXING (ZX AUTO) GRAND TIGER 2013. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Please confirm fitment using the part number MXA398 and the listed application details, plus the vehicle’s original alternator measurements and pulley arrangement, before ordering.

FAQ

What is the part number for this alternator?

The part number is MXA398.

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.

What type of regulator does it use?

It uses an internal regulator.

What belt pulley setup is listed?

The pulley section is listed as 4 groove.

Which vehicle groups are listed in the fitment data?

The listed fitment groups are Mitsubishi, Mitsubishi Outlander, Mitsubishi Triton, Zhongxing (ZX Auto), and Zhongxing (ZX Auto) Grand Tiger. Final compatibility still needs to be checked against the vehicle’s original alternator and mounting measurements.