OEX Alternator 12V 130A Denso Style DXA590

This OEX alternator is a 12V, 130A unit built in a Denso style application and identified by part number DXA590. It is a new alternator with an internal regulator, a 7 groove pulley section, and a twin leg alternator mount, so it suits buyers looking to match the physical mounting and electrical layout of the original unit as closely as possible.

Key mounting measurements are provided for cross-checking before purchase: 45mm inside mounting legs, 123mm mount centre to centre, an M8 x 1.25 adjusting hole, a 35mm mount leg thickness, and a 10mm pivot hole. These dimensions matter because alternators that are close in electrical output can still differ in bracket spacing, hole size, or mount style.

The unit is listed with pin code IR115 and a power rating of 130 amps at 12 volts. OEX notes this product is sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified, and it is backed by a 3 year passenger / 1 year commercial warranty.

Key Features

• 12V alternator with 130A output
• Denso style application
• Part number DXA590
• Internal regulator
• Twin leg alternator mount
• 7 groove pulley section

Specifications

• Voltage: 12V
• Power rating: 130A
• Warranty: 3yr Passenger / 1yr Commercial
• Inside mounting legs: 45mm
• Mount centre to centre: 123mm
• Adjusting hole diameter: M8 x 1.25
• Mount leg thickness: 35mm
• Pivot hole diameter: M10

Known application groups

• LEXUS HS
• TOYOTA ALPHARD
• TOYOTA ALPHARD / VELLFIRE
• TOYOTA AVENSIS VERSO
• TOYOTA CAMRY
• TOYOTA RAV 4
• TOYOTA SAI
• TOYOTA TARAGO

Application and Buying Notes

Before ordering, compare the part number DXA590, the Denso style designation, and the mounting measurements against the alternator currently in the vehicle. The key checks here are the 12V system, 130A output, 7 groove pulley section, twin leg mount, 45mm inside mounting legs, and 123mm mount centre to centre.

The listed pin code is IR115, and the unit uses an internal regulator. Those details can be important when matching the electrical configuration of the replacement alternator, especially where the original unit has a specific plug or regulator arrangement.

Fitment groups include Lexus HS and a range of Toyota applications, but the model list alone is not enough to confirm suitability. Cross-check the vehicle by part number, mounting points, pulley style, and physical dimensions before buying, because alternators can differ within the same model family.

At 5.9kg, this is a substantial rotating electrical component, so correct identification before fitting helps avoid wasted time and freight costs. If the existing unit shows similar dimensions but a different pin code, mount style, or pulley section, confirm the match carefully rather than relying on appearance alone.

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 DXA590 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 45mm, Pin Code IR115, Power Rating (Amp) 130, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 123mm, Weight 5.9kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA590, Brand OEX, Description OEX Alternator 12V 130A Denso Style, Adjusting Hole Diameter M8 x 1.25, Mount Leg Thickness 35mm, Pivot Hole Diameter M10, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 130A Denso Style. Part number DXA590 should be checked first. Listed voltage is 12. Listed output rating is 130. 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 DXA590, 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 130 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number DXA590, Denso style application details, 12V/130A output, pin code IR115, and the listed mounting and pulley measurements against the original alternator in the vehicle.

FAQ

Is this alternator new or remanufactured?

This alternator is listed as new. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.

What is the voltage and output rating?

It is a 12V alternator with a 130A power rating. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.

What are the main mounting measurements to check?

The key measurements listed are 45mm inside mounting legs, 123mm mount centre to centre, M8 x 1.25 adjusting hole diameter, 35mm mount leg thickness, and M10 pivot hole diameter. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.

What pulley configuration does it have?

It has a 7 groove pulley section. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.

What warranty is provided?

The warranty is listed as 3 years for passenger use and 1 year for commercial use. For this listing, part number DXA590 is the main reference point. Listed voltage is 12. Listed output rating is 130. Published fitment references include LEXUS HS, LEXUS HS 2009, LEXUS HS 2010. These details should still be checked against the original unit before ordering.