OEX Alternator 12V 160A Denso Style DXA4039

The OEX Alternator DXA4039 is a new 12V, 160A unit in Denso style, supplied as a twin leg alternator mount with a 6 groove pulley and external regulator. It is identified with Pin Code ER55 and is listed with a 57mm pulley outside diameter, 68mm inside mounting legs, and a 157mm mount centre to centre measurement.

This alternator is designed for applications that suit a Denso unit make and requires the correct electrical and mounting match, including the M10x1.5 / 11 pivot hole diameter and 13mm adjusting hole diameter. The note supplied with the part states ER55 code, with F1 = field positive feed from computer, and S = 2.4K ohms sense to computer.

OEX products are sourced from market leading Original Equipment Manufacturers and aftermarket suppliers, with factories stated as ISO9001 certified. The warranty listed for this alternator is 3 years for passenger use and 1 year for commercial use, which gives a clear reference point for buyers who need a replacement rotating electrical component with known specifications.

Key Features

• 12V alternator with 160A output
• New unit, not remanufactured
• Denso style, suited to Denso unit make
• Twin leg alternator mount
• External regulator type
• 6 groove pulley

Specifications

• Part No.: DXA4039
• Brand: OEX
• Product type: Alternator
• Unit of measure: Each
• Voltage: 12V
• Power rating: 160A
• New / Reman.: New
• Regulator type: External

Verified fitment applications supplied

• Dodge Nitro
• Dodge Nitro 2007 to 2012
• Jeep Cherokee
• Jeep Cherokee 2001 to 2011

Application and Buying Notes

Before ordering, check the part number DXA4039 and compare the key mounting and electrical details against the vehicle already fitted. The listed alternator uses a twin leg mount, 68mm inside mounting legs, a 157mm mount centre to centre measurement, and a 6 groove pulley, so the physical match needs to be checked carefully even when the vehicle appears on the application list.

The electrical setup matters just as much as the bolt pattern. This unit is 12V, rated at 160A, and uses an external regulator with the supplied ER55 pin code note. The note also specifies F1 = field positive feed from computer and S = 2.4K ohms sense to computer, so the charging system control arrangement should be confirmed before fitting.

This alternator is listed as a Denso style unit and suits Denso applications, but that does not replace a final part check against the original alternator. The pivot hole diameter is M10x1.5 / 11 and the adjusting hole diameter is 13mm, which are useful measurements when comparing the bracket and adjuster alignment on the vehicle.

If you are replacing a worn alternator, weigh the full specification rather than relying on output rating alone. The 160A rating, 57mm pulley outside diameter, 5.64kg weight, and external regulator type all form part of the match. Matching the part number, mount style, pulley configuration, and application list gives the best chance of ordering the correct unit the first time.

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 DXA4039 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 68mm, Pivot Hole Diameter M10x1.5 / 11, Pulley Outside Diameter 57mm, Regulator Type External, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA4039, Brand OEX, Description OEX Alternator 12V 160A Denso Style, Adjusting Hole Diameter 13, Pin Code ER55, Power Rating (Amp) 160, Pulley Section 6 Groove, Suits Unit Make Denso.

OEX Alternator 12V 160A Denso Style. Part number DXA4039 should be checked first. Listed voltage is 12. Listed output rating is 160. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is External. 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 DXA4039, 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 160 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include DODGE NITRO, DODGE NITRO 2007, DODGE NITRO 2008, DODGE NITRO 2009, JEEP CHEROKEE, JEEP CHEROKEE 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.

Compatibility note: Confirm fitment using part number DXA4039, the Denso-style application details, and the listed mounting and electrical measurements before purchase. Vehicle compatibility should always be checked against the alternator currently fitted to the vehicle.

FAQ

What is the part number for this alternator?

The part number is DXA4039.

What are the main electrical specifications?

This alternator is 12V and rated at 160A. It uses an external regulator.

Is this a new or remanufactured unit?

It is listed as new.

What pulley and mounting details are listed?

It has a 6 groove pulley with a 57mm outside diameter, twin leg mounting, 68mm inside mounting legs, and a 157mm mount centre to centre measurement.

What vehicles are listed in the supplied fitment data?

The supplied fitment data includes Dodge Nitro from 2007 to 2012 and Jeep Cherokee from 2001 to 2011.

What warranty is listed for this alternator?

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