OEX Alternator 12V 100A Mitsubishi Style MXA2113

The OEX MXA2113 is a new 12V alternator rated at 100A, built in Mitsubishi style and fitted with an internal regulator. It uses a quad leg alternator mount, a 6 groove pulley, and a pulley outside diameter of 51mm, so the physical mounting and drive layout need to match the vehicle application before purchase.

This unit suits vehicles without brake energy recovery and without start-stop function. The note is important: if the vehicle has brake energy recovery, use MXA2087 instead. Fitment should be confirmed by OE number rather than assuming compatibility from appearance alone.

Mounting dimensions listed for this alternator include 66mm inside mounting legs, a 133mm mount centre to centre measurement, M10x1.25/10 pivot hole diameter, and M10x1.25/10 adjusting hole diameter. Those details matter when comparing against the original unit or verifying an interchange.

Key Features

• 12V, 100A alternator
• New unit, not remanufactured
• Internal regulator
• Quad leg mount
• 6 groove pulley
• Mitsubishi style application

Specifications

• Part number: MXA2113
• Brand: OEX
• Type: Alternator
• Power rating: 100A
• Voltage: 12V
• New / remanufactured: New
• Pulley outside diameter: 51mm
• Pulley section: 6 groove

Fitment guidance

• Vehicles without brake energy recovery
• Vehicles without start-stop function
• Confirm by OE number before ordering
• If the vehicle has brake energy recovery, use MXA2087

Application and Buying Notes

Before ordering, check the OE number on the original alternator and compare it with MXA2113. This alternator is only suitable for vehicles without brake energy recovery and without start-stop function, and the supplied note specifically directs brake energy recovery applications to MXA2087.

The physical dimensions are just as important as the electrical rating. The unit is 12V and 100A, with a 51mm 6 groove pulley, 66mm inside mounting legs, 133mm mount centre to centre, and M10x1.25/10 pivot and adjusting holes. If any of those points differ from the vehicle’s original unit, the alternator may not install correctly.

Because this is a Mitsubishi style alternator with a quad leg mount and internal regulator, it should only be matched to the original application details, not just to the general vehicle make. The fitment information supplied points to Mazda 3 applications across multiple model years, but the OE number remains the safest check before purchase.

For workshop or fleet use, the warranty is listed as 3 years for passenger vehicles and 1 year for commercial use. That does not replace proper fitment checking; it simply gives a clear warranty framework once the correct application has been confirmed.

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 MXA2113 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 66mm, Pivot Hole Diameter M10x1.25/10, Pulley Outside Diameter 51mm, Regulator Type Internal, Voltage 12, Alternator Mount Quad Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. MXA2113, Brand OEX, Description OEX Alternator 12V 100A Mitsubishi Style - See Note, Adjusting Hole Diameter M10x1.25/10, Pin Code IR140, Power Rating (Amp) 100, Pulley Section 6 Groove, Suits Unit Make Mitsubishi.

OEX Alternator 12V 100A Mitsubishi Style - See Note. Part number MXA2113 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.

Mount style is Quad 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 MXA2113, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment with the OE number, alternator mount style, pulley details, and the vehicle’s brake energy recovery and start-stop status before ordering. If the vehicle has brake energy recovery, MXA2087 is the listed alternative.

FAQ

What is the part number for this alternator?

The part number is MXA2113. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.

What electrical rating does it have?

It is a 12V alternator rated at 100A. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.

Does this alternator have an internal regulator?

Yes. The regulator type is internal. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.

What pulley setup does it use?

It has a 6 groove pulley with a 51mm outside diameter. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.

Is this alternator suitable for vehicles with brake energy recovery?

No. It is listed for vehicles without brake energy recovery. For vehicles with brake energy recovery, use MXA2087. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.

What should I check before buying?

Confirm the OE number, the vehicle’s brake energy recovery and start-stop status, and the mounting details including the quad leg mount, 66mm inside mounting legs, 133mm mount centre to centre, and M10x1.25/10 pivot and adjusting holes. For this listing, part number MXA2113 is the main reference point. Listed voltage is 12. Listed output rating is 100. Published fitment references include MAZDA 3, MAZDA 3 2013, MAZDA 3 2014. These details should still be checked against the original unit before ordering.