OEX Alternator 12V 140A Denso Style DXA4038

The OEX Alternator 12V 140A Denso Style is a new rotating electrical unit with Part No. DXA4038. It is rated at 140 amps at 12 volts, uses an internal regulator, and is supplied as each. For buyers matching an existing charging system, the pulley is a 6 groove design with a 53 mm outside diameter and the alternator mount is twin leg.

This unit is listed for Denso applications and uses a 130 mm mount centre-to-centre measurement, with 60 mm inside mounting legs. The pivot hole diameter is M10x1.5 / 11, the adjusting hole diameter is 11, and the pin code is ER55. Those are the sort of measurements that matter when you are replacing a unit and need the brackets, bolts, and alignment points to match properly.

At 5.54 kg, this alternator sits in the heavier end of typical passenger charging components, which is consistent with a 140 A unit. OEX states the brand is sourced from market leading original equipment manufacturers and aftermarket suppliers, with products sourced from ISO9001 certified factories and backed by a 3 year passenger / 1 year commercial warranty.

Key Features

• 12V alternator with 140A output
• New unit, supplied each
• Internal regulator
• 6 groove pulley, 53 mm outside diameter
• Twin leg alternator mount
• Designed for Denso applications

Specifications

• Brand: OEX
• Product type: Alternator
• Power rating: 140 amp
• Voltage: 12V
• Unit of measure: Each
• New / remanufactured: New
• Warranty: 3yr Passenger / 1yr Commercial
• Suits unit make: Denso

Fitment guidance

• Supported applications include Ford Falcon, FPV Falcon, and Jeep Wrangler listings in the supplied fitment data.
• Sample fitment years shown include Ford Falcon 2005 to 2010, FPV Falcon 2005 to 2008, and Jeep Wrangler 2007 to 2012.
• Fitment is linked to the vehicle application data provided, but the exact engine or sub-model should still be checked against the part number and mounting measurements.

Application and Buying Notes

Before ordering, compare Part No. DXA4038 with the alternator already fitted to the vehicle, then check the Denso application, twin leg mount, and the 130 mm mount centre-to-centre dimension. If the existing unit uses different bracket spacing, bolt size, or pulley configuration, the alternator may not suit even where the vehicle name appears similar.

The 140A rating and 12V output are important because alternators are not interchangeable purely by shape. A vehicle that needs a different amperage output, regulator type, or pulley setup can have charging issues or installation problems if the replacement is not matched correctly. This unit uses an internal regulator and a 6 groove pulley, so those points should be confirmed against the original unit.

If you are working from a worn or missing part label, use the physical measurements as your guide: 60 mm inside mounting legs, M10x1.5 / 11 pivot hole diameter, 11 mm adjusting hole diameter, and a 53 mm pulley outside diameter. These details help distinguish one Denso-style alternator from another when the model range is broad.

For commercial use, the warranty is listed as 1 year, while passenger use carries 3 years. That difference is worth noting if the vehicle is used in mixed-duty conditions. The unit is a new OEX alternator, supplied as each, and weighs 5.54 kg, which may also assist with handling and comparing it against the original assembly.

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 DXA4038 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 60mm, Pivot Hole Diameter M10x1.5 / 11, Pulley Outside Diameter 53mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 130mm, Weight 5.54kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA4038, Brand OEX, Description OEX Alternator 12V 140A Denso Style, Adjusting Hole Diameter 11, Pin Code ER55, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 140A Denso Style. Part number DXA4038 should be checked first. Listed voltage is 12. Listed output rating is 140. 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 DXA4038, 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 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using Part No. DXA4038, the Denso unit make, twin leg mounting, 130 mm mount centre-to-centre measurement, and the pulley and hole dimensions before purchase. Vehicle model names alone are not enough to confirm compatibility.

FAQ

What part number identifies this alternator?

The listed part number is DXA4038.

What voltage and amperage does it have?

It is a 12V alternator rated at 140A.

Is this a new or remanufactured unit?

It is listed as new.

What type of regulator does it use?

It uses an internal regulator.

What mounting and pulley details should I check?

Check the twin leg mount, 60 mm inside mounting legs, 130 mm mount centre-to-centre, M10x1.5 / 11 pivot hole diameter, 11 mm adjusting hole diameter, and 6 groove pulley with a 53 mm outside diameter.

What warranty applies?

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