OEX Alternator 12V 100A Denso Style DXA558

The OEX Alternator DXA558 is a new 12V, 100A unit built in a Denso style configuration for applications that match the listed mounting and pulley details. It uses an internal regulator, a twin leg alternator mount, and a 7 groove pulley with a 60mm outside diameter.

Key dimensions to check before ordering include 44mm inside mounting legs, a 120mm mount centre-to-centre measurement, a 10mm pivot hole diameter, and an M8 x 1.25 adjusting hole. These details are important when matching the alternator to the vehicle and the existing bracket layout.

This part is identified as OEX part number DXA558, with supplier reference Pin Code IR11. It is supplied new and weighs 6.3kg, which can be useful when comparing against the unit being replaced.

OEX states its range is sourced from market leading original equipment manufacturers and aftermarket suppliers, with products made in ISO9001 certified factories. The alternator is covered by a 3 year passenger warranty and 1 year commercial warranty.

Key Features

• 12V alternator rated at 100A
• Denso style application
• Internal regulator
• Twin leg mount
• 7 groove pulley
• New unit, not remanufactured

Specifications

• Part number: DXA558
• Brand: OEX
• Voltage: 12V
• Power rating: 100A
• Pulley outside diameter: 60mm
• Pulley section: 7 groove
• Inside mounting legs: 44mm
• Mount centre to centre: 120mm

Fitment notes

• Toyota RAV 4
• Toyota RAV 4 2000
• Toyota RAV 4 2001
• Toyota RAV 4 2002
• Toyota RAV 4 2003
• Toyota RAV 4 2004
• Toyota RAV 4 2005
• Toyota Tarago

Application and Buying Notes

This alternator is only suitable where the vehicle matches the listed Denso style setup and the physical dimensions. The key checks are the 12V system, 100A output, twin leg mount, 44mm inside mounting legs, 120mm mount centre-to-centre, 10mm pivot hole, and M8 x 1.25 adjusting hole.

The pulley arrangement also needs to match the vehicle. This unit uses a 7 groove pulley with a 60mm outside diameter, so the belt type and pulley size should be compared carefully with the removed alternator before purchase.

If you are replacing a worn alternator, compare the part number DXA558 and the vehicle application details rather than relying on appearance alone. Alternators can look similar while differing in mounting spacing, pulley section, or regulator type.

The internal regulator is another important point to confirm. If the existing system uses a different regulator arrangement, this unit may not be the correct replacement even if the housing shape looks close.

The supplied fitment list includes Toyota RAV 4 and Toyota Tarago applications across the early 2000s, but the exact year and variant still need to be checked against the vehicle in front of you. Matching the application name is helpful, but the final check should always be the mounting dimensions and part identification.

For commercial use, the warranty is listed as 1 year, while passenger use carries a 3 year warranty. Keep the invoice and confirm how the vehicle will be used so the correct warranty basis is understood from the outset.

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 DXA558 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 44mm, Pivot Hole Diameter 10, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 120mm, Weight 6.3kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA558, Brand OEX, Description OEX Alternator 12V 100A Denso Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR11, Power Rating (Amp) 100, Pulley Section 7 Groove, Suits Unit Make Denso, Alternator Mount Twin Leg.

OEX Alternator 12V 100A Denso Style. Part number DXA558 should be checked first. Listed voltage is 12. Listed output rating is 100. 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA558, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include TOYOTA RAV 4, TOYOTA RAV 4 2000, TOYOTA RAV 4 2001, TOYOTA RAV 4 2002. 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 by matching part number DXA558, the Denso style application, and the listed mounting and pulley specifications against the existing alternator and vehicle details before ordering.

FAQ

What is the part number for this alternator?

The part number is DXA558. The supplier pin code is IR11.

Is this alternator new or remanufactured?

It is a new alternator.

What voltage and output does it have?

It is a 12V alternator with a 100A power rating.

What pulley and regulator type does it use?

It has a 7 groove pulley with a 60mm outside diameter and an internal regulator.

What mounting measurements should be checked?

Check the 44mm inside mounting legs, 120mm mount centre-to-centre measurement, 10mm pivot hole diameter, and M8 x 1.25 adjusting hole.

What warranty is listed for this alternator?

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