OEX Alternator 12V 120A Valeo VXA038

The OEX VXA038 is a new 12V alternator rated at 120A and built for Valeo applications. It uses an internal regulator, CW rotation, a twin leg alternator mount, and a 5 groove pulley with a 57mm outside diameter.

Key mounting dimensions are listed as 163mm mount centres A, 51mm inside mounting legs, an 11mm adjusting hole diameter, and an M10 x 1.25 pivot hole diameter. Those measurements matter when you are comparing the unit to the alternator already fitted to the vehicle.

This alternator is supplied as an OEX rotating electrical part and is described as using OE components for fit and function. The product note also states that fitment should be confirmed by OE number because regulator functions can differ between applications.

Key Features

• New alternator, not remanufactured
• 12V, 120A output
• Valeo suitment
• Internal regulator
• CW rotation
• 5 groove pulley

Specifications

• Part No.: VXA038
• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 120A
• Suits unit make: Valeo
• Regulator type: Internal
• Rotation: CW

Fitment guidance

• Fitment is tied to Valeo applications.
• Vehicle examples provided include Hyundai i30 and Mazda CX-5 applications.
• Hyundai i30 applications are shown across 2016, 2017, 2018, 2019 and 2020.
• Mazda CX-5 applications are shown across 2017 and 2018.
• Confirm the OE number and regulator function before ordering.

Application and Buying Notes

When checking this alternator against the original unit, compare the part number VXA038, the Valeo suitment, and the internal regulator style. The note specifically says to confirm by OE number because different regulator functions can apply, so matching the vehicle model alone is not enough.

The physical measurements are just as important as the electrical rating. This unit is 12V and 120A, with a 5 groove pulley, 57mm pulley outside diameter, 163mm mount centres A, 51mm inside mounting legs, and an M10 x 1.25 pivot hole. Those details help confirm the alternator will line up correctly with the brackets and belt arrangement already on the vehicle.

Because alternators can look similar while differing in mount style or wiring function, it is sensible to verify the old unit before purchase. The OEX VXA038 is a twin leg mount alternator with CW rotation, so both the mounting pattern and rotation direction should be checked against the existing part.

This is a new unit and weighs 6.2kg. If the original alternator has been replaced before, compare the tag, housing style, pulley section, and mounting points rather than relying only on what the vehicle should have from factory.

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 VXA038 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 51mm, Pin Code IR182, Power Rating (Amp) 120, Pulley Section 5 Groove, Rotation CW, Voltage 12, Alternator Mount Twin Leg.

Additional published details for cross-checking include Weight 6.2kg, Product Group 1 ROTATING ELECTRICAL, Part No. VXA038, Brand OEX, Description OEX Alternator 12V 120A Valeo - See Note, Adjusting Hole Diameter 11, Mount Centres A 163mm, Pivot Hole Diameter M10 x 1.25, Pulley Outside Diameter 57mm, Regulator Type Internal.

OEX Alternator 12V 120A Valeo - See Note. Part number VXA038 should be checked first. Listed voltage is 12. Listed output rating is 120. 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 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number VXA038, 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 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by OE number, regulator function, mounting style, and the measured dimensions listed for VXA038 before ordering.

FAQ

What is the part number for this alternator?

The part number is VXA038. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 120A power rating. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured alternator?

It is listed as new. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.

What mount and pulley details are listed?

It has a twin leg mount, CW rotation, a 5 groove pulley, and a 57mm pulley outside diameter. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.

What should be checked before buying?

Confirm the OE number, regulator function, Valeo suitment, and the listed mounting and pulley measurements against the unit currently fitted. For this listing, part number VXA038 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include HYUNDAI I30, HYUNDAI I30 2016, HYUNDAI I30 2017. These details should still be checked against the original unit before ordering.