OEX Alternator 12V 100A Denso Style DXA582

The OEX DXA582 is a new 12V alternator rated at 100A, built in a Denso style and intended for applications that suit a Denso unit. It uses an internal regulator, a twin leg alternator mount, and a 7 groove pulley with a 55mm outside diameter.

This unit has an inside mounting leg measurement of 46.5mm, a mount centre-to-centre measurement of 123mm, an M10x1.25/11 pivot hole, and an M8x1.25 adjusting hole. Those dimensions matter when you are matching the alternator to the vehicle bracketry and drive setup.

The listing note is important: the option offered has a Sense terminal in the regulator plug. If an RLO terminal is required, DXA583 is the alternate part to look at. ACX6250 may also be required to confirm the circuit configuration before ordering.

Key Features

• New alternator, not remanufactured
• 12V, 100A output
• Denso style unit
• Internal regulator
• Twin leg mount
• 7 groove pulley

Specifications

• Part number: DXA582
• Brand: OEX
• Type: Alternator
• Power rating: 100A
• Voltage: 12V
• Suits unit make: Denso
• Pulley outside diameter: 55mm
• Pulley section: 7 groove

Compatibility guidance

• Fitment is listed against Toyota applications in the supplied data.
• Verified fitment coverage includes Toyota Alphard, Alphard / Vellfire, Avensis Verso, Camry, Noah/Voxy, RAV 4, Rukus and Tarago.
• The fitment list includes Alphard / Vellfire model years from 2003 through 2014 in the provided preview.
• Use the part number DXA582 and the regulator plug terminal style to confirm the correct application before ordering.

Application and Buying Notes

Before buying, match the part number DXA582 against the existing alternator and check the regulator plug terminal arrangement. The supplied note says the offered unit has a Sense terminal, and DXA583 should be used if an RLO terminal is required. That terminal detail is just as important as the 12V, 100A rating.

You should also compare the mounting dimensions on the vehicle side. This alternator has a twin leg mount, 46.5mm inside mounting legs, 123mm mount centre-to-centre, an M10x1.25/11 pivot hole, and an M8x1.25 adjusting hole. If those points do not line up with the original unit and bracket, the alternator will not be a suitable match.

Pulley style also needs checking. The pulley is 55mm outside diameter with a 7 groove section, so the belt layout must suit that configuration. If the vehicle’s charging system or pulley arrangement differs, it is better to verify the application carefully rather than assume the Denso style housing alone is enough.

ACX6250 may be required to confirm circuit configuration. That is worth factoring in when the vehicle’s wiring or charge lamp setup is not certain, especially on applications where alternator connector style and circuit design are easy to confuse. A quick comparison of the old unit, connector, and mounting points usually saves time and avoids a return.

The alternator is new and carries a 3 year passenger / 1 year commercial warranty, which gives a clear service expectation, but it does not replace fitment checking. The most reliable buying approach is to confirm the application details, compare the plug terminal style, and match the mounting and pulley specifications before installation.

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 DXA582 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 46.5mm, 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. DXA582, Brand OEX, Description OEX Alternator 12V 100A Denso Style - See Note, Adjusting Hole Diameter M8x1.25, Pin Code IR115, Power Rating (Amp) 100, Pulley Section 7 Groove, Suits Unit Make Denso.

OEX Alternator 12V 100A Denso Style - See Note. Part number DXA582 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA582, 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 fitment using part number DXA582, the Sense terminal regulator plug arrangement, and the mounting and pulley dimensions before purchase. If the vehicle requires an RLO terminal, use DXA583 instead, and consider ACX6250 if circuit configuration needs to be confirmed.

FAQ

Is this alternator new or remanufactured?

This is a new alternator, not a remanufactured unit.

What is the output rating?

The alternator is rated at 12V and 100A.

What type of regulator does it use?

It has an internal regulator.

What terminal style is offered with this part?

The offered unit has a Sense terminal in the regulator plug. If an RLO terminal is required, DXA583 is the alternate part noted.

What mounting and pulley details should be checked?

Check the twin leg mount, 46.5mm inside mounting legs, 123mm mount centre-to-centre, M10x1.25/11 pivot hole, M8x1.25 adjusting hole, and 55mm 7 groove pulley.

What warranty is listed?

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