OEX Alternator 12V 80A Denso Style DXA4108

The OEX Alternator DXA4108 is a 12V, 80A unit in Denso style, built as a new rotating electrical component for applications that match the listed mounting and pulley details. It uses an internal regulator, a twin leg alternator mount, and a 6 groove pulley, so matching the physical setup is just as important as matching the electrical rating.

Key dimensions include 51mm inside mounting legs, a 172mm mount centre-to-centre measurement, an M10x1.25/11 pivot hole diameter, and an M8x1.25 adjusting hole diameter. The pulley outside diameter is 55mm, and the unit rotates clockwise.

OEX lists this alternator as suit unit make Denso, with OEM number 104210-9800-PO and pin code IR139. A specific fitment note applies to Toyota Corolla ZRE182R with LIN regulator: this alternator is not suitable for that application, and DXA4099 is listed for Corolla ZRE182R with LIN regulator instead.

Key Features

• 12V 80A alternator
• Denso style
• Internal regulator
• New unit
• Clockwise rotation
• 6 groove pulley

Specifications

• Voltage: 12V
• Power rating: 80A
• Regulator type: Internal
• Rotation: CW
• Pulley section: 6 groove
• Pulley outside diameter: 55mm
• Inside mounting legs: 51mm
• Mount centre to centre: 172mm

Fitment guidance

• Toyota Corolla applications are referenced in the supplied fitment data
• Toyota Corolla 2014
• Toyota Corolla 2015
• Toyota Corolla 2016
• Toyota Corolla 2017
• Toyota Corolla 2018
• Toyota Corolla 2019
• Not suitable for Corolla ZRE182R with LIN regulator

Application and Buying Notes

Before ordering, compare the part number DXA4108, the Denso-style design, and the mounting measurements against the alternator already fitted to the vehicle. The listed setup uses a twin leg mount, 51mm inside mounting legs, 172mm mount centre to centre, and a 6 groove pulley, so those details need to line up with the existing unit.

Electrical matching matters as much as physical fit. This alternator is rated at 12V and 80A, with an internal regulator and clockwise rotation. If the vehicle uses a different regulator arrangement, or a different pulley layout, the alternator may not be suitable even if the general shape looks similar.

One fitment caution is specifically noted for Toyota Corolla ZRE182R with LIN regulator. That application is excluded from this alternator and requires DXA4099 instead. If you are checking a Corolla, confirm whether the vehicle has the LIN regulator before ordering, rather than relying on model name alone.

For workshop or fleet use, the warranty is listed as 3 years for passenger applications and 1 year for commercial use. The unit is new, weighs 4.1kg, and carries OEM number 104210-9800-PO, which can help when cross-checking against the original alternator or supplier records.

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 DXA4108 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, Pivot Hole Diameter M10x1.25/11, Pulley Outside Diameter 55mm, Regulator Type Internal, Suits Unit Make Denso, Note Not suitable for COROLLA ZRE182R with LIN Regulator. For COROLLA ZRE182R with LIN regulator use DXA4099, Item Type Alternator.

Additional published details for cross-checking include New / Reman. New, Weight 4.1kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXA4108, Brand OEX, Description OEX Alternator 12V 80A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR139, Power Rating (Amp) 80, Pulley Section 6 Groove.

OEX Alternator 12V 80A Denso Style. Part number DXA4108 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4108, 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 COROLLA, TOYOTA COROLLA 2014, TOYOTA COROLLA 2015, TOYOTA COROLLA 2016. 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 checking the part number DXA4108, the Denso-style application, the internal regulator, the twin leg mounting arrangement, and the 6 groove pulley. Do not rely on vehicle model alone, and note that Corolla ZRE182R with LIN regulator requires DXA4099 instead.

FAQ

What is the voltage and output of this alternator?

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

What part number should I use when ordering?

The listed part number is DXA4108.

Is this alternator new or remanufactured?

It is listed as new.

What regulator type does it use?

It uses an internal regulator.

Does it suit Toyota Corolla ZRE182R with LIN regulator?

No. The note states it is not suitable for Corolla ZRE182R with LIN regulator, and DXA4099 should be used for that application.

What are the main mounting and pulley details?

The unit has a twin leg alternator mount, 51mm inside mounting legs, 172mm mount centre to centre, an M10x1.25/11 pivot hole diameter, an M8x1.25 adjusting hole diameter, and a 6 groove pulley with 55mm outside diameter.