OEX Alternator 12V 90A Denso Style DXA4173

The OEX alternator DXA4173 is a new 12V, 90A unit in Denso style, supplied as a single-leg alternator with an internal regulator. It uses a 7 groove pulley, has a 62.5mm pulley outside diameter, and weighs 4.38kg.

This unit is listed as one of two identical looking alternators with different regulator functions, so matching by OE number is strongly recommended before ordering. The stated vehicle build date range is 07/12 to 05/16, and the note specifically says to confirm against the OE number rather than relying on appearance alone.

For mounting details, the alternator has a 58mm mount leg thickness, 161mm mount centre to centre, an M8x1.25 adjusting hole, and a 10.5mm pivot hole. These measurements matter when checking physical interchange on the vehicle, especially where the alternator housings look similar but the regulator function differs.

Key Features

• New alternator, not remanufactured
• 12V, 90A output
• Denso style unit
• Internal regulator
• Single-leg alternator mount
• 7 groove pulley

Specifications

• Part number: DXA4173
• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 90A
• Unit of measure: Each
• New / remanufactured: New
• Regulator type: Internal

Fitment guidance

• Build date range stated: 07/12 to 05/16
• Fitment reference provided: ISUZU D-MAX
• Listed applications include ISUZU D-MAX 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and 2020 as previewed

Application and Buying Notes

Check the alternator already fitted to the vehicle before ordering, because this OEX DXA4173 is identified as one of two identical looking alternators with different regulator functions. The internal regulator and Denso style housing are not enough on their own to confirm interchange if the OE number does not match.

The practical fitment window supplied is 07/12 to 05/16, so build date is a key checkpoint. Vehicles can share model naming while changing alternator specification across build dates, pulley arrangements, or regulator setup, so confirm the exact build date and compare it with the existing unit.

Physical measurements should also be checked against the removed alternator. The 7 groove pulley, 62.5mm pulley outside diameter, 58mm mount leg thickness, 161mm mount centre to centre, M8x1.25 adjusting hole and 10.5mm pivot hole are the useful dimensions for comparing fit.

The stated applications preview includes ISUZU D-MAX, but the safest buying approach is still to verify the OE number, build date, and mounting dimensions together. That is especially important when the same-looking alternator can use a different regulator function.

If the vehicle is used in commercial service, the warranty listed is 1 year. For passenger use, the listed warranty is 3 years. Make sure the intended use category matches the warranty expectation before purchase.

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 DXA4173 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, Mount Leg Thickness 58mm, Power Rating (Amp) 90, Pulley Section 7 Groove, Suits Unit Make Denso, Note One of two identical looking alternators, both with different regulator functions. Confirm by OE number. Suit vehicle build date form 07/12 to 05/16., Mount Cnt to Cnt 161mm, Weight 4.38kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4173, Brand OEX, Description OEX Alternator 12V 90A Denso Style Suits Only 07/12 to 06/16, Adjusting Hole Diameter M8x1.25, Pivot Hole Diameter 10.5, Pulley Outside Diameter 62.5mm, Regulator Type Internal, Voltage 12, Alternator Mount Single Leg.

OEX Alternator 12V 90A Denso Style Suits Only 07/12 to 06/16. Part number DXA4173 should be checked first. Listed voltage is 12. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4173, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include ISUZU D-MAX, ISUZU D-MAX 2012, ISUZU D-MAX 2013, ISUZU D-MAX 2014. 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.

The listed warranty is 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by matching the OE number, vehicle build date, regulator type, and alternator mounting dimensions against the existing unit. Do not rely on appearance alone, as two similar-looking alternators may have different regulator functions.

FAQ

What is the part number for this alternator?

The part number is DXA4173.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator with a 90A power rating.

What type of regulator does it use?

It uses an internal regulator.

What vehicle fitment range is stated?

The stated build date range is 07/12 to 05/16, and the fitment reference provided is ISUZU D-MAX.

What should be checked before ordering?

Confirm the OE number, build date, regulator function, and mounting dimensions, because this is one of two identical looking alternators with different regulator functions.