OEX Alternator 12V 80A Mitsubishi Style MXA2099

The OEX MXA2099 is a new 12V alternator rated at 80A and described as Mitsubishi style. It is set up with an internal regulator, CW rotation, a 74mm pulley outside diameter, and a twin leg mount arrangement, so it suits applications that match those physical and electrical requirements.

This unit is listed with a 67mm inside mounting leg dimension, 175mm mount centre to centre, a 10.5mm pivot hole diameter, and an M8 adjusting hole diameter. Those measurements are important when comparing the alternator to the one being replaced, particularly where bracket spacing and mounting hole sizes must line up correctly.

OEX identifies this alternator under part number MXA2099, with pin code IR134 and pulley section A. It is a replacement rotating electrical component for buyers who need a 12V, 80 amp alternator with the correct mount style and regulator type for the vehicle or machine being serviced.

Key Features

• New alternator, not remanufactured
• 12V output with 80A power rating
• Internal regulator
• Twin leg alternator mount
• CW rotation
• 74mm pulley outside diameter

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: MXA2099
• Voltage: 12V
• Power rating: 80A
• New / Reman.: New
• Regulator type: Internal
• Rotation: CW

Verified application details

• CATERPILLAR 236D
• CATERPILLAR 242D
• CATERPILLAR 246D
• CATERPILLAR 257D
• CATERPILLAR 259D
• CATERPILLAR 262D
• CATERPILLAR 277D
• CATERPILLAR 279D

Application and Buying Notes

Before ordering, compare the replacement unit against the key dimensions on this OEX MXA2099 alternator: 67mm inside mounting legs, 175mm mount centre to centre, 10.5mm pivot hole diameter, and an M8 adjusting hole. These are the first checks that help confirm the bracket pattern is correct before you look at wiring or belt alignment.

The alternator is rated at 12V and 80A, with an internal regulator and CW rotation. If the original unit differs in voltage, output, regulator type, rotation, or pulley configuration, the part may not be suitable even if it looks similar at a glance.

The pulley is listed as 74mm outside diameter with pulley section A. That matters because pulley size and section affect belt match and alignment. Confirm the existing belt drive setup before fitting, especially on equipment where accessory drive components have been changed over time.

This alternator is described as Mitsubishi style and is listed with part number MXA2099 and pin code IR134. Part numbers and pin codes are useful reference points when matching the replacement to the old unit, particularly where machine records are incomplete or the original label is hard to read.

OEX states this product is sourced from original equipment manufacturers and aftermarket suppliers, manufactured in ISO certified factories, and backed by a comprehensive nationwide warranty. The listed warranty is 3 years for passenger use and 1 year for commercial use, so it is worth confirming the intended application before purchase.

The unit weighs 4.8kg and is supplied new. If you are replacing an alternator on machinery or a vehicle with tight mounting access, confirming the physical size and mounting layout beforehand can save time during installation and reduce the chance of ordering the wrong assembly.

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 MXA2099 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 67mm, Pivot Hole Diameter 10.5, Pulley Outside Diameter 74mm, Regulator Type Internal, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg, Mount Cnt to Cnt 175mm.

Additional published details for cross-checking include Insulated Return No, Product Group 2 ALTERNATORS, Part No. MXA2099, Brand OEX, Description OEX Alternator 12V 80A Mitsubishi Style, Adjusting Hole Diameter M8, Pin Code IR134, Power Rating (Amp) 80, Pulley Section A.

OEX Alternator 12V 80A Mitsubishi Style. Part number MXA2099 should be checked first. Listed voltage is 12. Listed output rating is 80. 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 A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MXA2099, 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 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using the part number MXA2099, pin code IR134, the Mitsubishi style mounting details, and the listed application information before ordering. Do not rely on appearance alone, as pulley, regulator, and mount dimensions must all match the vehicle or machine.

FAQ

What is the output of this alternator?

It is rated at 12V and 80A.

Is this alternator new or remanufactured?

It is listed as new.

What regulator type does it use?

It has an internal regulator.

What part number should I use to confirm the replacement?

The part number is MXA2099.

What mounting details are listed for this alternator?

It has a twin leg mount, 67mm inside mounting legs, 175mm mount centre to centre, a 10.5mm pivot hole, and an M8 adjusting hole.

Does the listing provide application information?

Yes. The supplied fitment information includes CATERPILLAR applications such as 236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D, 906K, 906M, 907K, 907M, 908H II, 908K, 908M, and AP300F. Final confirmation should still be made against the part number and mounting details.