OEX Alternator 12V 115A Mitsubishi Style MXA2045

The OEX MXA2045 is a new 12V alternator rated at 115A and built in Mitsubishi style, with a 6 groove pulley and external regulator. It is listed as suit unit make Mitsubishi and uses an ER55 pin code, so it is important to match the electrical and mounting details before ordering.

Key dimensions for this alternator include 54mm inside mounting legs, 10mm pivot hole diameter, 12mm adjusting hole diameter and 183mm centre to centre mount spacing. The pulley outside diameter is 53mm and the unit weighs 5.78kg, which can help when comparing against the alternator already fitted to the vehicle.

This OEX alternator is supplied new, not remanufactured, and carries a 3 year passenger / 1 year commercial warranty. OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factory support and nationwide warranty backing.

Key Features

• New 12V alternator
• 115A power rating
• Mitsubishi style unit
• External regulator
• 6 groove pulley
• ER55 pin code

Specifications

• Voltage: 12V
• Power rating: 115A
• Part number: MXA2045
• Brand: OEX
• Type: Alternator
• Unit of measure: Each
• New / remanufactured: New
• Regulator type: External

Fitment guidance

• Listed as suitable for Mitsubishi unit applications
• Fitment data also references Chrysler Sebring, Dodge Avenger, Dodge Caliber, Jeep Compass and Jeep Patriot applications
• Vehicle-specific application details should still be checked against the part number and mounting measurements before purchase

Application and Buying Notes

Before ordering, compare the MXA2045 part number, ER55 pin code and external regulator setup with the unit currently fitted. The wrong regulator style or pin configuration can stop a direct swap, even where the alternator looks similar at first glance.

Mounting measurements matter on this alternator: 54mm inside mounting legs, 10mm pivot hole diameter, 12mm adjusting hole diameter and 183mm centre to centre. These dimensions should be checked against the existing bracket arrangement so the alternator sits correctly and the belt alignment remains consistent.

The 6 groove pulley and 53mm outside diameter are also important when matching the drive setup. If the vehicle uses a different pulley section, belt type or offset, the alternator may not be suitable without additional changes.

Because the fitment information references multiple makes and models, it is best to confirm the exact application by part number and by comparing the physical unit removed from the vehicle. The listed weight of 5.78kg can also help when checking you are comparing the same style of alternator.

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 MXA2045 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 54mm, Pivot Hole Diameter 10, Pulley Outside Diameter 53mm, Regulator Type External, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. MXA2045, Brand OEX, Description OEX Alternator 12V 115A Mitsubishi Style, Adjusting Hole Diameter 12, Pin Code ER55, Power Rating (Amp) 115, Pulley Section 6 Groove, Suits Unit Make Mitsubishi.

OEX Alternator 12V 115A Mitsubishi Style. Part number MXA2045 should be checked first. Listed voltage is 12. Listed output rating is 115. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is External. 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 MXA2045, 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 115 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using the MXA2045 part number, ER55 pin code, external regulator type, mounting measurements and the vehicle application details before ordering. If anything on the existing unit differs, recheck compatibility carefully.

FAQ

Is this alternator new or remanufactured?

This OEX alternator is listed as new, not remanufactured. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.

What is the voltage and amperage rating?

It is a 12V alternator with a 115A power rating. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.

Does it use an external regulator?

Yes. The regulator type is listed as external. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is MXA2045. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.

What pulley setup does it have?

It has a 6 groove pulley with a 53mm outside diameter. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.

What should I check before buying?

Check the part number MXA2045, ER55 pin code, external regulator type, mounting dimensions and vehicle application details against the existing alternator. For this listing, part number MXA2045 is the main reference point. Listed voltage is 12. Listed output rating is 115. Published fitment references include CHRYSLER SEBRING, CHRYSLER SEBRING 2007, CHRYSLER SEBRING 2008. These details should still be checked against the original unit before ordering.