OEX Alternator 12V 130A Mitsubishi Style MXA2121

The OEX MXA2121 is a new 12V alternator rated at 130A, built in Mitsubishi style with an internal regulator and a 6 groove pulley. It is supplied as an each unit and suits Mitsubishi applications where the mounting and pulley details match the vehicle setup.

Key physical identifiers include a 175mm mount centre to centre measurement, 80mm inside mounting legs, an 8mm pivot hole diameter, and an M8x1.25 adjusting hole. The pulley outside diameter is 55mm, and the unit weighs 6.1kg.

This alternator is part of the OEX rotating electrical range and is backed by a 3 year passenger / 1 year commercial warranty. For purchasing confidence, the most useful identifiers are part number MXA2121, pin code IR203, and the stated Mitsubishi-style configuration.

Key Features

• 12V alternator with 130A output
• New unit, not remanufactured
• Mitsubishi style with internal regulator
• 6 groove pulley, 55mm outside diameter
• Twin leg alternator mount
• OEX part number MXA2121

Specifications

• Voltage: 12V
• Power rating: 130A
• Part number: MXA2121
• Pin code: IR203
• Regulator type: Internal
• Pulley section: 6 groove
• Pulley outside diameter: 55mm
• Inside mounting legs: 80mm

Fitment and application guidance

• Suits Mitsubishi applications only where the alternator mounting, pulley and electrical configuration match the listed specifications.
• Use part number MXA2121 and pin code IR203 to confirm the correct unit before ordering.
• Check the 12V system requirement, 130A output, twin leg mount, 6 groove pulley, 55mm pulley outside diameter, 175mm mount centre to centre, 80mm inside mounting legs, and 8mm pivot hole diameter against the vehicle's existing alternator.

Application and Buying Notes

The main compatibility checkpoints on this alternator are the Mitsubishi style casing, twin leg mount, internal regulator, and the 6 groove pulley arrangement. Those details matter as much as the electrical rating, because a 130A alternator can still be the wrong part if the mounting dimensions or pulley profile do not match the vehicle.

Measure the existing unit before ordering. The key dimensions here are 175mm mount centre to centre, 80mm inside mounting legs, 8mm pivot hole diameter, and an M8x1.25 adjusting hole. These measurements help confirm whether the alternator will physically locate in the bracketry and line up correctly with the drive belt.

The 55mm pulley outside diameter and 6 groove section should also be checked against the belt system fitted to the vehicle. If the vehicle uses a different pulley section, or if the regulator and plug arrangement differ, the alternator may not suit even if the mount looks close.

This is a new OEX alternator, weighing 6.1kg, and it carries a 3 year passenger / 1 year commercial warranty. Warranty coverage is useful, but it does not replace fitment checking, so part number MXA2121 and pin code IR203 should be matched carefully to the vehicle application before purchase.

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 MXA2121 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 80mm, Pivot Hole Diameter 8, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm, Weight 6.1kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA2121, Brand OEX, Description OEX Alternator 12V 130A Mitsubishi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR203, Power Rating (Amp) 130, Pulley Section 6 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg.

OEX Alternator 12V 130A Mitsubishi Style. Part number MXA2121 should be checked first. Listed voltage is 12. Listed output rating is 130. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MXA2121, 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 130 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include SUBARU OUTBACK, SUBARU OUTBACK 2009, SUBARU OUTBACK 2010, SUBARU OUTBACK 2011. 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 by matching part number MXA2121, pin code IR203, the Mitsubishi style mount, and the listed electrical and dimensional details against the vehicle's existing alternator before ordering.

FAQ

What type of alternator is this?

It is a new OEX 12V alternator rated at 130A in Mitsubishi style, with an internal regulator and a 6 groove pulley.

What is the part number?

The part number is MXA2121. The pin code is IR203.

Is this alternator new or remanufactured?

It is listed as new.

What mounting and pulley details are listed?

The alternator has a twin leg mount, 175mm mount centre to centre, 80mm inside mounting legs, an 8mm pivot hole diameter, an M8x1.25 adjusting hole, and a 55mm pulley outside diameter with a 6 groove section.

What warranty is supplied?

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

How should fitment be checked?

Fitment should be checked by matching part number MXA2121, pin code IR203, the Mitsubishi style configuration, and the listed voltage, amperage, mount, pulley, and hole dimensions against the vehicle's existing alternator.