OEX Alternator 12V 40A Denso Style DXA4035

This OEX alternator is a 12V, 40A unit in Denso style, identified by part number DXA4035 and sold as a new replacement alternator. It is specified with an internal regulator, a single leg alternator mount, and a pulley outside diameter of 69mm, so it is important to match the physical layout as well as the part number when checking suitability.

The alternator is listed with a 148mm mount centre-to-centre dimension, 21mm mount leg thickness, 10mm pivot hole diameter, M8x1.25 adjusting hole diameter, and a 15mm shaft dimension. Those measurements matter when confirming whether the unit will physically sit and align correctly in the application, especially where bracket style and pulley alignment are critical.

OEX positions this range as an aftermarket option built around quality and reliability, with ISO9001 certified factories and a comprehensive warranty backing the product. The warranty shown is 3 years for passenger use and 1 year for commercial use, which gives a clear indication of the intended coverage, but it does not replace the need to confirm compatibility before ordering.

Key Features

• 12V alternator rated at 40 amps
• Denso style unit
• Internal regulator
• Single leg alternator mount
• New replacement unit
• Pulley outside diameter: 69mm

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA4035
• Power rating: 40A
• Voltage: 12V
• New / Reman.: New
• Regulator type: Internal
• Suits unit make: Denso

Known application guidance

• ANTONIO CARRARO TTR4400
• CASE CX27B
• DOOSAN/DAEWOO DX27Z
• DOOSAN/DAEWOO DX30Z
• FIORI D25RF/RT
• GEHL 1640E
• IHI 28N
• IHI 30NX-2

Application and Buying Notes

Before ordering, compare the listed part number DXA4035 with the unit being replaced, then check the Denso style mounting pattern, single leg mount, and 12V 40A rating. The physical dimensions are just as important here: 148mm mount centre-to-centre, 21mm mount leg thickness, 10mm pivot hole diameter, M8x1.25 adjusting hole diameter, and a 69mm pulley outside diameter all need to align with the existing setup.

This alternator is specified with an internal regulator, so it suits applications designed for that arrangement rather than an externally regulated charging system. The shaft dimension is 15mm and the pulley section is A, which are useful checkpoints if you are matching pulleys or comparing the replacement to the original unit already on the machine.

The application data supplied covers a range of compact equipment and utility machines, including models from Antonio Carraro, Case, Doosan/Daewoo, Fiori, Gehl, IHI, John Deere, Kobelco, Komatsu, New Holland, Takeuchi, Thwaites, Volvo Construction and Yanmar. Even where a model name appears in the fitment list, the safest check is still to match the part number, mounting style, and measurements against the removed alternator.

Because alternators can look similar while differing in regulator type, mount spacing, and pulley dimensions, confirm the old unit before fitting. If the original alternator is damaged or missing, compare the bracket spacing, pivot hole size, adjusting hole thread, and pulley diameter against the vehicle or machine mounting points 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 DXA4035 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 21mm, Pivot Hole Diameter 10, Pulley Outside Diameter 69mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 148mm, Shaft Dimension 15.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA4035, Brand OEX, Description OEX Alternator 12V 40A Denso Style, Adjusting Hole Diameter M8x1.25, Pin Code IR74, Power Rating (Amp) 40, Pulley Section A, Suits Unit Make Denso.

OEX Alternator 12V 40A Denso Style. Part number DXA4035 should be checked first. Listed voltage is 12. Listed output rating is 40. 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 A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA4035, 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 40 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include ANTONIO CARRARO TTR4400, ANTONIO CARRARO TTR4400 2011, CASE CX27B, DOOSAN/DAEWOO DX27Z, DOOSAN/DAEWOO DX27Z 2007, DOOSAN/DAEWOO DX30Z. 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 DXA4035, Denso style mounting, 12V 40A output, internal regulator, and the listed dimensions against the original alternator and application details before purchase.

FAQ

What is the part number for this alternator?

The part number is DXA4035.

Is this a 12V or 24V alternator?

It is specified as a 12V alternator.

What output does this alternator provide?

The power rating listed is 40 amps.

Does it use an internal regulator?

Yes. The regulator type is listed as internal.

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What should I check before ordering?

Match the part number DXA4035, Denso style, single leg mount, 12V 40A rating, and the key dimensions including 148mm mount centre-to-centre, 69mm pulley outside diameter, 21mm mount leg thickness, 10mm pivot hole diameter, and M8x1.25 adjusting hole diameter.