OEX Alternator 12V 140A Denso Style DXA563

The OEX Alternator DXA563 is a new 12V, 140A unit made in a Denso style configuration for vehicles that use a Denso-type alternator. It is a rotating electrical component with an internal regulator, a 6 groove pulley, and a single leg mount, so the physical mounting and pulley details matter as much as the electrical rating when matching it to the vehicle.

Key dimensions are listed as a 62mm mount leg thickness, 12mm pivot hole diameter, 12mm adjusting hole diameter, and 180mm mount centre to centre. The pulley outside diameter is 62mm, and the alternator weighs 6.4kg. Those details give a clear starting point when checking the replacement against the existing unit before ordering.

OEX states the brand is sourced from market leading original equipment manufacturers and aftermarket suppliers, with products sourced from ISO9001 certified factories. The alternator is backed by a 3 year passenger / 1 year commercial warranty, which is useful context if you are replacing a failed charging unit on a daily driver, fleet vehicle, or workshop job.

This alternator is listed as Part No. DXA563 and Pin Code IR180, which are the identifiers to compare against the existing unit and any application records. For fitment-sensitive electrical parts like this, the part number, mount style, pulley section, and voltage rating should all be checked together rather than relying on appearance alone.

Key Features

• 12V alternator with 140A output
• New unit, not remanufactured
• Denso style application
• Internal regulator
• Single leg alternator mount
• 6 groove pulley

Specifications

• Voltage: 12V
• Power rating: 140A
• Type: Alternator
• Brand: OEX
• Suits unit make: Denso
• Regulator type: Internal
• Alternator mount: Single leg
• Mount leg thickness: 62mm

Known fitment references

• Alfa Romeo 147
• Alfa Romeo 159
• Fiat Punto
• Fiat Ritmo
• Holden Astra
• Saab 9-3
• Saab 9-5

Application and Buying Notes

Before ordering, compare the alternator on the vehicle with the DXA563 measurements: 12V system voltage, 140A output, 180mm mount centre to centre, 62mm pulley outside diameter, 12mm pivot hole, and 12mm adjusting hole. These are the practical checks that help confirm whether the unit will physically and electrically suit the vehicle.

The listing shows a Denso style alternator with a single leg mount and internal regulator. That means the mounting layout and regulator arrangement need to match the existing unit. If the current alternator uses a different mount type, pulley section, or regulator setup, the part should not be assumed to fit just because the vehicle make is similar.

Known application references include Alfa Romeo 147 and 159, Fiat Punto and Ritmo, Holden Astra, and Saab 9-3 and 9-5. These are only application references, not a blanket guarantee for every model year or engine variant, so it is still important to confirm the part number DXA563 and the physical dimensions against the vehicle already fitted with the alternator.

As with any charging system component, the condition of the battery, drive belt, and wiring should be checked during replacement. A 140A alternator can only perform correctly when the rest of the system is in good order, so it is sensible to inspect belt condition, pulley alignment, and charging connections at the same time.

If you are replacing an existing Denso-style unit, keep the old alternator handy and compare the mounting ears, pulley type, and overall dimensions before fitting. The 6 groove pulley and 62mm pulley outside diameter are specific details that matter when matching belt drive layout and accessory alignment.

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 DXA563 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 62mm, Pivot Hole Diameter 12, Pulley Outside Diameter 62mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 180mm, Weight 6.4kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. DXA563, Brand OEX, Description OEX Alternator 12V 140A Denso Style, Adjusting Hole Diameter 12, Pin Code IR180, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Denso, Alternator Mount Single Leg.

OEX Alternator 12V 140A Denso Style. Part number DXA563 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 Single 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 DXA563, 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.

Compatibility note: Confirm fitment by matching Part No. DXA563, the Denso style single leg mount, the 12V/140A rating, and the listed dimensions and pulley details against the vehicle’s existing alternator and application records before purchase.

FAQ

What type of alternator is this?

It is an OEX alternator, new, 12V and rated at 140A. It is listed as a Denso style unit with an internal regulator and single leg mount.

What is the part number?

The listed part number is DXA563. The pin code is IR180.

What pulley does it use?

It uses a 6 groove pulley with a 62mm outside diameter.

Is this a remanufactured alternator?

No. The specification lists it as new.

What warranty is listed?

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

Which vehicles are mentioned as fitment references?

The listed fitment references include Alfa Romeo 147 and 159, Fiat Punto and Ritmo, Holden Astra, and Saab 9-3 and 9-5. These references should still be checked against the exact part number and dimensions before purchase.