OEX Alternator 12V 100A Denso Style DXA585

The OEX Alternator DXA585 is a new 12V, 100A unit in Denso style, fitted with an internal regulator and a twin leg mount. It is supplied as an alternator each and is built for applications that match the listed mounting dimensions, pulley arrangement and Denso unit make.

Key physical details include 51mm inside mounting legs, an M10x1.25 / 11 pivot hole, an M8 x 1.25 adjusting hole and a 176mm mount centre-to-centre measurement. The pulley is 55mm outside diameter, 6 groove, and the unit is noted as fitted with a clutch style pulley.

This alternator carries part number DXA585, pin code IR115, and a power rating of 100 amps at 12 volts. The listed weight is 5.72kg, and the warranty is 3 years for passenger use or 1 year for commercial use.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factories supporting engineering, testing and quality control procedures. That matters when you are matching an alternator to an existing mounting setup, pulley arrangement and electrical requirement rather than replacing by appearance alone.

Key Features

• New OEX alternator, not remanufactured
• 12V output with 100A power rating
• Denso style unit
• Internal regulator
• Twin leg alternator mount
• 6 groove pulley, 55mm outside diameter

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA585
• Voltage: 12V
• Power Rating: 100A
• New / Reman.: New
• Regulator Type: Internal
• Alternator Mount: Twin Leg

Fitment guidance

• No verified vehicle fitment is being stated here.
• The product information confirms Denso style and gives mounting and pulley dimensions that should be checked against the vehicle's original alternator before ordering.
• Fitment data supplied in the background indicates Toyota Corolla applications across multiple model years, but a confirmed vehicle application is not being declared in this listing.

Application and Buying Notes

Before buying, match the part number DXA585 and compare the alternator against your original unit, especially the twin leg mount, 51mm inside mounting legs, 176mm centre-to-centre mounting dimension and the M10x1.25 / 11 pivot hole. These are the kinds of measurements that decide whether the unit physically bolts up correctly.

The pulley arrangement also needs checking. This alternator is listed with a 55mm, 6 groove pulley and is fitted with a clutch style pulley, so the belt type and pulley style on the vehicle should be confirmed before fitting. A close visual match is not enough if the groove count or pulley style differs.

Electrical requirements matter as well. This is a 12V alternator with a 100A output and an internal regulator, so it should be considered as a direct specification match rather than a universal replacement. If the original unit differs in voltage, amperage or regulator style, that needs to be resolved before purchase.

The unit is new and backed by a 3 year passenger or 1 year commercial warranty. That provides a clear warranty reference, but it does not replace checking the application details on the vehicle. Where the alternator was originally fitted to a Denso setup, the suitability still comes down to dimensions, connector arrangement and pulley match as well as the part number.

If you are comparing against a worn or missing alternator, it is worth confirming the pin code IR115 and measuring the mounting points on the vehicle side. Those details help avoid ordering by shape alone and reduce the chance of a mismatch when the unit arrives.

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 DXA585 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, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA585, Brand OEX, Description OEX Alternator 12V 100A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR115, Power Rating (Amp) 100, Pulley Section 6 Groove, Suits Unit Make Denso.

OEX Alternator 12V 100A Denso Style. Part number DXA585 should be checked first. Listed voltage is 12. Listed output rating is 100. 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 DXA585, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility using part number DXA585 and the listed application details, mounting measurements, pulley specification and Denso style before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What voltage and output does it have?

The alternator is 12V with a 100A power rating.

What type of regulator is fitted?

It has an internal regulator.

What pulley specification is listed?

It has a 55mm outside diameter pulley with 6 grooves and is noted as fitted with a clutch style pulley.

What mounting details are provided?

The listed mounting details are twin leg mount, 51mm inside mounting legs, M10x1.25 / 11 pivot hole, M8 x 1.25 adjusting hole and 176mm mount centre-to-centre.

What warranty is supplied with this unit?

The warranty is 3 years for passenger use and 1 year for commercial use.