OEX Alternator 12V 100A Mitsubishi Style MXA9609

The OEX Alternator MXA9609 is a 12V, 100A unit in Mitsubishi style, supplied as a new alternator with internal regulator control. It is listed as a twin leg mount with a 73mm pulley outside diameter, so the physical mounting and pulley arrangement should be checked carefully against the vehicle or machine before ordering.

Key dimensions supplied for this alternator include 67mm inside mounting legs, a 10.5mm pivot hole diameter, a 9mm adjusting hole diameter and 175mm mount centre to centre. Those measurements are the practical points that matter when matching an alternator to an existing setup, especially where the original unit has to line up with the bracket, belt and wiring arrangement.

This alternator is rated at 100 amps and 12 volts, with clockwise rotation and a pulley section marked A. It weighs 5.1kg and carries part number MXA9609 under the OEX brand, which is backed by a one year warranty and described as being sourced from market leading Original Equipment Manufacturers and aftermarket suppliers.

For buyers replacing an existing Mitsubishi style alternator, the safest approach is to compare the part number, mount style, pulley size and the mounting hole spacing before purchase. Alternators can look similar externally while differing in the details that determine whether they fit and function correctly.

Key Features

• 12V alternator with 100A output
• Mitsubishi style unit
• New replacement alternator
• Internal regulator
• Twin leg alternator mount
• Clockwise rotation

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Output: 100A
• Part number: MXA9609
• Regulator type: Internal
• Rotation: CW
• Pulley outside diameter: 73mm

Fitment Guidance

• Fitment is listed against Caterpillar applications in the provided data.
• Applications shown include Caterpillar 272D, 272D2/XHP, 297D2, 299D, 299D2, 910K and 914K.
• Some applications are shown with model year references such as 272D 2013, 272D2/XHP 2016, 297D2 2015, 299D 2012, 299D2 2015 and 910K 2015.
• Only use the listed Caterpillar applications as a guide after checking the part number and the mounting measurements on the existing alternator.
• Do not assume compatibility with other vehicles or machines unless the original unit matches the same part number and dimensions.

Application and Buying Notes

Before ordering, compare the MXA9609 part number with the alternator already fitted to the machine, then check the twin leg mount, 67mm inside mounting legs and 175mm mount centre to centre. Those dimensions are the quickest way to identify whether the unit is physically comparable to the one being replaced.

The 73mm pulley outside diameter, A section pulley and clockwise rotation are also important. If the pulley type or rotation differs from the original alternator, belt alignment and charging operation may not match correctly, even if the unit appears similar at first glance.

Because this alternator uses an internal regulator, it should be matched to the vehicle or machine’s charging system as originally configured. The 12V, 100A rating is suitable only where that electrical output is required and the installation accepts the same regulator and mounting arrangement.

The supplied fitment data points to Caterpillar applications, including 272D, 272D2/XHP, 297D2, 299D, 299D2, 910K and 914K. Use those references as a starting point only, then confirm with the machine’s existing alternator details, bracket layout and connector arrangement before committing to purchase.

A 5.1kg alternator with a 10.5mm pivot hole and 9mm adjusting hole is not a universal fit. Small differences in bracket hole size, spacing or pulley offset can prevent installation, so it is worth checking the old unit carefully rather than relying on appearance alone.

The one year warranty provides a clear ownership period, but it does not replace the need to verify suitability. A correct match depends on the part number, mount style, pulley dimensions, rotation and application details being consistent with the original unit.

If the current alternator has a different style, output rating or mounting arrangement, treat this MXA9609 as a comparison item rather than an assumed replacement. Matching by dimensions and part number is the most reliable way to avoid avoidable returns or installation delays.

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 MXA9609 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 One Year, Inside Mounting Legs 67mm, Pivot Hole Diameter 10.5, Pulley Outside Diameter 73mm, Regulator Type Internal, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. MXA9609, Brand OEX, Description OEX Alternator 12V 100A Mitsubishi Style, Adjusting Hole Diameter 9, Pin Code IR134, Power Rating (Amp) 100, Pulley Section A, Rotation CW.

OEX Alternator 12V 100A Mitsubishi Style. Part number MXA9609 should be checked first. Listed voltage is 12. Listed output rating is 100. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Compatibility note: Please confirm fitment using part number MXA9609, the twin leg mount, 12V 100A rating, 73mm pulley outside diameter and the mounting measurements before ordering. The listed Caterpillar applications are guidance only and should be checked against the existing alternator and machine configuration.

FAQ

What is the part number for this alternator?

The part number is MXA9609.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and amperage does it have?

It is a 12V alternator rated at 100A.

What type of regulator does it use?

It has an internal regulator.

What mounting details are listed for this alternator?

The listed mounting details are twin leg mount, 67mm inside mounting legs, 10.5mm pivot hole diameter, 9mm adjusting hole diameter and 175mm mount centre to centre.

Which applications are shown in the fitment data?

The provided fitment data shows Caterpillar applications including 272D, 272D2/XHP, 297D2, 299D, 299D2, 910K and 914K, with some year references also listed.