OEX Alternator 12V 80A Denso Style DXA507

The OEX Alternator DXA507 is a new 12V, 80A unit built in a Denso style with an internal regulator and twin leg alternator mount. It is listed with a 6 groove pulley, a pulley outside diameter of 71mm, and a weight of 5.4kg, so it is important to compare the mounting and pulley details with the original unit before ordering.

This alternator uses an inside mounting leg measurement of 43mm, a mount centre to centre dimension of 165mm, a pivot hole diameter of 11mm, and an adjusting hole of M8 x 1.25. Those dimensions matter just as much as the electrical rating when matching a replacement alternator, particularly on applications that rely on the Denso unit pattern.

OEX states this product is sourced through original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factory sourcing and a nationwide warranty. The listed warranty is 3 years for passenger use and 1 year for commercial use, which gives buyers a clear service benchmark when fitting a replacement alternator in a suitable application.

Key Features

• 12V alternator rated at 80A
• Denso style replacement
• Internal regulator
• Twin leg alternator mount
• 6 groove pulley
• New unit

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA507
• Voltage: 12V
• Power rating: 80A
• Regulator type: Internal
• Pulley section: 6 groove
• Pulley outside diameter: 71mm

Fitment guidance

• Listed fitment includes Lexus ES, Lexus GS and Lexus RX applications.
• Listed fitment also includes Toyota Alphard, Avalon, Camry, Supra, Tarago and Vienta applications.
• Some fitment records shown include Toyota Alphard 2003, 2004, 2005, 2006, 2007 and 2008.
• Some fitment records shown include Lexus ES model years 1991 through 2002, along with Toyota Avalon model years 1995 through 1998.
• Fitment is only suitable where the original alternator matches the Denso style, 12V system, 80A output and the stated mount and pulley measurements.
• Verify the vehicle application against the part number DXA507 before purchase.

Application and Buying Notes

When choosing a replacement alternator, the part number DXA507 and the Denso style mounting pattern are the first checks to make. This unit is a 12V, 80A alternator with an internal regulator, so it should only be considered where the original part matches those electrical and physical details.

The pulley and bracket measurements are just as important as the amp rating. This alternator has a 6 groove pulley with a 71mm outside diameter, 43mm inside mounting legs, 165mm mount centre to centre, an 11mm pivot hole and an M8 x 1.25 adjusting hole. If any of those points differ from the vehicle’s original alternator, the part may not install correctly.

Because the fitment list spans several Lexus and Toyota applications, the safest approach is to compare the existing unit, the vehicle application and the listed specifications side by side. That is especially important on vehicles where the alternator has been changed previously, as a prior replacement may not match the factory configuration.

This alternator is supplied new and carries a 3 year passenger or 1 year commercial warranty. Warranty terms are useful, but they do not replace fitment checks. A correct match still depends on the unit make, mounting style, pulley section and electrical specification being aligned with the vehicle’s requirements.

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 DXA507 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 43mm, Pivot Hole Diameter 11, Pulley Outside Diameter 71mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 165mm, Weight 5.4kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA507, Brand OEX, Description OEX Alternator 12V 80A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR11, Power Rating (Amp) 80, Pulley Section 6 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 80A Denso Style. Part number DXA507 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 DXA507, 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.

Compatibility note: Confirm compatibility using part number DXA507, the Denso style mount, 12V 80A specification, and the listed bracket and pulley dimensions before ordering.

FAQ

What type of alternator is this?

It is an OEX alternator, new, 12V and rated at 80A. It is described as a Denso style unit with an internal regulator and twin leg mount.

What is the part number?

The listed part number is DXA507.

What vehicles are shown in the fitment information?

The fitment information includes Lexus ES, GS and RX, plus Toyota Alphard, Avalon, Camry, Supra, Tarago and Vienta applications.

What pulley setup does it use?

It uses a 6 groove pulley with a 71mm outside diameter.

What dimensions should be checked before buying?

Check the 43mm inside mounting legs, 165mm mount centre to centre, 11mm pivot hole diameter, and M8 x 1.25 adjusting hole diameter, along with the Denso style mount.

What warranty is listed?

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