OEX Alternator 12V 90A Denso Style DXA488

The OEX Alternator DXA488 is a new 12V, 90A unit in Denso style, supplied as an alternator with ECU voltage control. It is built as a twin leg mount alternator and uses a 6 groove pulley, so the physical mounting and belt drive details need to line up with the vehicle application before purchase.

Key mounting dimensions are listed as 53mm inside mounting legs, 182mm mount centre to centre, a 10mm pivot hole diameter, and an M8 x 1.25 adjusting hole. Those measurements matter when checking whether the unit will physically sit in the bracket and align correctly with the belt system.

This alternator is specified with a field control unit regulator type and is noted for Denso unit applications. The unit weight is 5.4kg, and the listed warranty is 3yr Passenger / 1yr Commercial, which gives a clear indication of the intended coverage split for different vehicle use cases.

Key Features

• 12V alternator rated at 90A
• New unit, not remanufactured
• Denso style with ECU voltage control
• Twin leg alternator mount
• 6 groove pulley
• Field control unit regulator type

Specifications

• Part No.: DXA488
• Brand: OEX
• Type: Alternator
• Voltage: 12V
• Power Rating: 90A
• Unit of Measure: Each
• Suits Unit Make: Denso
• Pulley Outside Diameter: 64mm

Fitment guidance

• Supported fitment families include Chrysler Voyager / Grand Voyager and Jeep Cherokee, Jeep Grand Cherokee, and Jeep Wrangler.
• Fitment data also references Chrysler Grand Voyager model years including 2007, 2008, 2009, 2010, and 2011.
• Jeep Cherokee applications are listed across model years including 1994 through 2001 in the supplied fitment range.
• Jeep Grand Cherokee applications are listed in the supplied fitment range, including 1994 and 1995.
• Use the part number DXA488 together with the mounting measurements and pulley details to confirm the correct application before ordering.

Application and Buying Notes

When comparing this alternator to the one already fitted, start with the part number DXA488 and the physical details: 12V output, 90A rating, twin leg mount, 6 groove pulley, 64mm pulley outside diameter, and 182mm mount centre to centre. Those items are the most practical checks for avoiding a mismatch during installation.

ECU voltage control is listed as a feature and the regulator type is a field control unit, so this is not a case of selecting a generic alternator only by outward appearance. The electrical control arrangement needs to suit the vehicle’s charging system, especially where the original unit is Denso style and the application expects ECU-managed voltage control.

The supplied fitment information covers Chrysler Voyager / Grand Voyager and several Jeep models, but the exact model year and application still need to be matched carefully. Vehicle range alone is not enough on its own; check the bracket spacing, pivot hole diameter, adjusting hole size, and pulley section against the original alternator.

Because the unit is listed as new and weighs 5.4kg, it is a straightforward replacement item, but installation should still be treated as a verification job rather than a guess. Confirm the belt groove count, mounting leg width, and regulator style before fitting, particularly if the vehicle has had prior electrical or accessory changes.

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 DXA488 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 53mm, Pivot Hole Diameter 10, Pulley Outside Diameter 64mm, Regulator Type Field Control Unit, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA488, Brand OEX, Description OEX Alternator 12V 90A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code ER47, Power Rating (Amp) 90, Pulley Section 6 Groove, Suits Unit Make Denso.

OEX Alternator 12V 90A Denso Style. Part number DXA488 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 Twin Leg. Regulator type is Field Control Unit. 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 DXA488, 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 CHRYSLER GRAND VOYAGER, CHRYSLER GRAND VOYAGER 2007, CHRYSLER GRAND VOYAGER 2008, CHRYSLER GRAND VOYAGER 2009, JEEP CHEROKEE, JEEP CHEROKEE 1994. 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 compatibility using part number DXA488, the listed Denso style application, and the supplied mounting and pulley measurements before ordering. Vehicle fitment should always be checked against the original alternator and application details, especially where ECU voltage control is involved.

FAQ

What is the part number for this alternator?

The part number is DXA488.

What voltage and output does this alternator have?

It is a 12V alternator rated at 90A.

Is this alternator new or remanufactured?

It is listed as new.

What type of mounting does it use?

It uses a twin leg alternator mount, with 53mm inside mounting legs and 182mm mount centre to centre.

What pulley details are listed?

The alternator has a 6 groove pulley and a pulley outside diameter of 64mm.

What vehicles are referenced in the fitment data?

The supplied fitment data references Chrysler Voyager / Grand Voyager and Jeep Cherokee, Jeep Grand Cherokee, and Jeep Wrangler applications.