OEX Alternator 12V 110A Mitsubishi Style MXA303

The OEX MXA303 is a new 12V alternator rated at 110A, built in a Mitsubishi style configuration and supplied as an each unit. It is part of the rotating electrical range and uses an internal regulator, so the key identifiers to check are 12 volt, 110 amp, part number MXA303, and the Mitsubishi style mounting details.

This alternator is listed with a twin leg alternator mount, 66mm inside mounting legs, a 10mm pivot hole diameter, M8 x 1.25 adjusting hole diameter, and 175mm mount centre to centre. The pulley is a 4 groove design with a 64mm outside diameter, and the unit weighs 5.7kg.

The stated unit make is Mando, and the pin code is IR70. Those details matter when matching the alternator to an existing installation, especially where the physical mount, pulley setup, or connector arrangement needs to line up with the vehicle application.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified. For buyers comparing options, the practical checks remain the part number MXA303, the 110A output, and the specific mounting and pulley dimensions supplied here.

Key Features

• New alternator, not remanufactured
• 12V output with 110A power rating
• Internal regulator type
• Mitsubishi style configuration
• Twin leg alternator mount
• 4 groove pulley, 64mm outside diameter

Specifications

• Brand: OEX
• Part No.: MXA303
• Product type: Alternator
• Voltage: 12V
• Current rating: 110A
• New / Reman.: New
• Warranty: 3yr Passenger, 1yr Commercial
• Inside mounting legs: 66mm

Verified fitment information

• Supported vehicle groups shown for this alternator include Hyundai, Kia, Mitsubishi and Subaru.
• Sample applications listed include Hyundai Santa Fe, Hyundai Sonata, Kia Optima, Mitsubishi FTO, Mitsubishi Lancer, Mitsubishi Nimbus, Mitsubishi Pajero IO, and Subaru Outback.
• Model years appearing in the supplied fitment examples include Hyundai Santa Fe 2001 to 2003, Kia Optima 2001 to 2006, Mitsubishi FTO 1994 to 2001, and Subaru Outback 2003 to 2009.
• Because the supplied fitment data is grouped and partial, final confirmation should still be made against part number MXA303 and the vehicle’s existing alternator mounting and pulley details.

Application and Buying Notes

Before ordering, compare the existing alternator against the listed physical measurements for MXA303: 66mm inside mounting legs, 10mm pivot hole diameter, M8 x 1.25 adjusting hole, 175mm mount centre to centre, and a 64mm 4 groove pulley. These are the practical checkpoints that help confirm the replacement will bolt up and line up correctly.

The 110A rating and 12V system voltage are important if you are replacing a unit that must match the vehicle’s charging system specification. The regulator is internal, so buyers should confirm their current unit uses the same style of regulation and that the connector arrangement aligns with the pin code IR70.

This alternator is supplied new and carries a 3yr Passenger / 1yr Commercial warranty. Warranty terms can be useful when comparing replacement options, but they do not replace the need to confirm fitment against the vehicle and the part number MXA303 before purchase.

The fitment data references several Hyundai, Kia, Mitsubishi and Subaru applications, but it is not sensible to rely on make alone. Always check the exact model, year, mounting arrangement, pulley section and connector details on the vehicle already fitted, especially where Mitsubishi style and Mando unit make are both relevant.

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 MXA303 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 10, Pulley Outside Diameter 64mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 175mm, Weight 5.7kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA303, Brand OEX, Description OEX Alternator 12V 110A Mitsubishi Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR70, Power Rating (Amp) 110, Pulley Section 4 Groove, Suits Unit Make Mando, Alternator Mount Twin Leg.

OEX Alternator 12V 110A Mitsubishi Style. Part number MXA303 should be checked first. Listed voltage is 12. Listed output rating is 110. 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 MXA303, 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 110 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include HYUNDAI SANTA FE, HYUNDAI SANTA FE 2001, HYUNDAI SANTA FE 2002, HYUNDAI SANTA FE 2003, KIA OPTIMA, KIA OPTIMA 2001. 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: Confirm compatibility using part number MXA303, the 12V 110A specification, and the listed mounting and pulley details before ordering. Vehicle make references alone are not enough to verify fitment.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What is the voltage and amperage rating?

The alternator is rated at 12V and 110A.

What part number should I match?

The supplied part number is MXA303.

What type of regulator does it use?

It uses an internal regulator.

What pulley setup is listed?

It has a 4 groove pulley with a 64mm outside diameter.

What warranty is supplied?

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