OEX Alternator 12V 80A Denso Style DXA4184

The OEX Alternator DXA4184 is a new 12V, 80 amp unit built in a Denso style configuration for vehicles that match the listed mounting and pulley details. It uses an internal regulator, a 7 groove pulley with a 58mm outside diameter, and a twin leg alternator mount, so these physical dimensions matter as much as the electrical rating when confirming the correct replacement.

This alternator is supplied under the OEX brand and is described as suitable for Denso applications. Key identification points include part number DXA4184, pin code IR201, 160mm mount centre to centre, 51mm inside mounting legs, and M10x1.25 / 11 mount hole diameter. Those measurements are the practical checks to compare against the original unit before ordering.

For buyers replacing a worn charging unit, the combination of 12V output, 80A power rating, and internal regulation means this alternator needs to match the vehicle’s existing electrical layout and mounting pattern. It is a single each unit, weighs 4.5kg, 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 production from ISO certified factories. That does not replace fitment checking, but it does give useful context when selecting a replacement alternator for a Denso style application.

Key Features

• New alternator, not remanufactured
• 12V, 80A output
• Internal regulator
• 7 groove pulley
• Twin leg mount
• Denso style application

Specifications

• Brand: OEX
• Product type: Alternator
• Part number: DXA4184
• Voltage: 12V
• Current output: 80A
• Regulator type: Internal
• Pulley outside diameter: 58mm
• Pulley section: 7 groove

Fitment guidance

• Toyota Hilux applications are listed in the supplied fitment information.
• Listed sample applications include Toyota Hilux 2015, 2016, 2017, 2018, 2019 and 2020.
• Fitment should still be checked against the original alternator part number and mounting measurements before purchase.

Application and Buying Notes

When replacing an alternator, the most important checks are the electrical rating, regulator type, pulley configuration and mount pattern. This unit is 12V and 80A with an internal regulator, so it needs to line up with the vehicle’s charging system and the original alternator’s specification rather than relying on appearance alone.

The mounting dimensions are just as important as the output rating. Compare the twin leg mount, 51mm inside mounting legs, 160mm mount centre to centre, M10x1.25 / 11 mount hole diameter, and 12.5mm adjusting hole diameter against the unit being removed. If any of these measurements differ, the alternator may not sit correctly.

The pulley is a 7 groove design with a 58mm outside diameter, which must suit the belt setup on the vehicle. The listed pin code is IR201, and the unit is identified as Denso style and suited to Denso applications. These identifiers are useful cross-checks when matching a replacement to the original part.

If you are replacing a failed alternator, it is worth comparing the old unit’s label, plug arrangement and mounting points before fitting the new one. A correct match should be confirmed using the part number DXA4184 and the physical measurements, not just the vehicle make or model name.

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 DXA4184 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 IR201, Pulley Outside Diameter 58mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 160mm, Weight 4.5kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4184, Brand OEX, Description OEX Alternator 12V 80A Denso Style, Adjusting Hole Diameter 12.5, Mount Hole Diameter M10x1.25 / 11, Power Rating (Amp) 80, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 80A Denso Style. Part number DXA4184 should be checked first. Listed voltage is 12. Listed output rating is 80. 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4184, 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 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include TOYOTA HILUX, TOYOTA HILUX 2015, TOYOTA HILUX 2016, TOYOTA HILUX 2017. 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 DXA4184, the Denso style application, and the listed mounting and pulley measurements before ordering. Vehicle fitment should always be verified against the original alternator and charging system layout.

FAQ

What is the part number for this alternator?

The part number is DXA4184.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator with an 80A power rating.

What type of regulator does it use?

It uses an internal regulator.

What pulley setup does it have?

It has a 7 groove pulley with a 58mm outside diameter.

What fitment information is provided?

Toyota Hilux applications are listed in the supplied fitment information, with sample applications including 2015 through 2020. Final fitment should still be checked against the original part number and measurements.