OEX Alternator 12V 90A Denso Style DXA4105

The OEX Alternator DXA4105 is a new 12V, 90A unit built in a Denso style and supplied as a single-leg alternator. Key physical details include a 60mm pulley outside diameter, 4 groove pulley section, 58mm mount leg thickness, 10.5mm pivot hole diameter, M8x1.25 adjusting hole diameter and 165mm mount centre to centre.

This alternator uses an internal regulator and is listed as suit unit make Denso. It weighs 5.76kg and is supplied as each unit, which helps when comparing it against the original alternator or a removed sample before ordering.

OEX positions this range as a quality aftermarket option, with factories ISO9001 certified and product support backed by a 3 year passenger / 1 year commercial warranty. For buyers replacing a Denso-style alternator, the part number DXA4105 and the listed mounting measurements are the main checkpoints to confirm before fitting.

Key Features

• New alternator, not remanufactured
• 12V system with 90A output
• Denso style, suit unit make Denso
• Internal regulator
• Single leg alternator mount
• 4 groove pulley

Specifications

• Brand: OEX
• Part No.: DXA4105
• Product type: Alternator
• Voltage: 12V
• Power rating: 90A
• Unit of measure: Each
• Weight: 5.76kg
• Pulley outside diameter: 60mm

Fitment guidance

• Verified fitment information supplied: Lexus IS applications are listed in the fitment data.
• Fitment preview includes Lexus IS model years 1999, 2000, 2001, 2002, 2003, 2004 and 2005.
• Use the part number DXA4105 and the listed mounting measurements to confirm the replacement against the vehicle and the removed unit before purchase.

Application and Buying Notes

When replacing an alternator, the safest way to confirm the correct unit is to compare the part number DXA4105, the Denso-style application, and the mounting details. The key measurements here are the 165mm mount centre to centre, 58mm mount leg thickness, 10.5mm pivot hole diameter and M8x1.25 adjusting hole diameter, along with the single-leg mount arrangement.

The pulley details also matter. This alternator has a 60mm outside diameter pulley with a 4 groove section, so the belt profile on the vehicle needs to match that configuration. If the pulley or belt arrangement on the vehicle differs, the alternator may not be suitable even if the electrical rating is close.

Electrical specification is another important check. This unit is rated at 12V and 90A with an internal regulator. Those figures should be compared with the vehicle’s charging system requirements and the original alternator specification, especially where the vehicle has been modified or a previous repair has changed the charging setup.

As a new OEX alternator, this unit is supported by a 3 year passenger / 1 year commercial warranty. Warranty terms are useful, but they do not replace fitment checking, so the best practice is still to verify the original unit, connector style, pulley layout and mounting dimensions before ordering.

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 DXA4105 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, Mount Leg Thickness 58mm, Pivot Hole Diameter 10.5, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 165mm, Weight 5.76kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4105, Brand OEX, Description OEX Alternator 12V 90A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR11, Power Rating (Amp) 90, Pulley Section 4 Groove, Suits Unit Make Denso, Alternator Mount Single Leg.

OEX Alternator 12V 90A Denso Style. Part number DXA4105 should be checked first. Listed voltage is 12. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is 4 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4105, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include LEXUS IS, LEXUS IS 1999, LEXUS IS 2000, LEXUS IS 2001. 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 compatibility by matching part number DXA4105, the Denso-style application, the single-leg mount, 12V 90A rating, and the listed pulley and mounting measurements against the vehicle and the removed alternator.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What is the electrical output?

The alternator is rated at 12V and 90A.

What type of regulator does it use?

It uses an internal regulator.

What pulley does it have?

It has a 60mm pulley outside diameter with a 4 groove pulley section.

What vehicles are listed in the fitment data?

The supplied fitment data references Lexus IS applications, including model years 1999 through 2005.

What should I check before ordering?

Match part number DXA4105, the Denso-style application, the single-leg mount, and the listed measurements including 165mm mount centre to centre, 58mm mount leg thickness, 10.5mm pivot hole diameter and M8x1.25 adjusting hole diameter.