OEX Alternator 12V 85A Bosch Style BXA003

The OEX Alternator BXA003 is a new 12V, 85A unit in Bosch style configuration, supplied as an alternator each. It uses an internal regulator, a single leg alternator mount, and a 6 groove pulley, so the physical layout needs to match the vehicle and the existing charging system before purchase.

Key dimensions to check are the 183mm centre-to-centre mount spacing, 51mm mount leg thickness, 10mm pivot hole diameter, 8mm adjusting hole diameter, and 61mm pulley outside diameter. Those measurements are the practical checks that help confirm whether the replacement will sit correctly in the original bracketry and belt drive.

This unit is listed for Bosch application and carries OEX part number BXA003, with a pin code of IR110. It weighs 5.34kg and is backed by a 3 year passenger / 1 year commercial warranty, so it suits buyers who want a new replacement alternator with the core fitment details clearly identified up front.

Key Features

• New alternator, not remanufactured
• 12V system voltage
• 85A power rating
• Internal regulator
• Bosch style application
• Single leg alternator mount

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Output: 85A
• Regulator type: Internal
• Pulley outside diameter: 61mm
• Pulley section: 6 groove
• Mount type: Single leg

Fitment guidance

• Supported makes in the fitment data include Holden, HSV, and Toyota.
• Model families listed include Holden Berlina, Holden Calais, Holden Caprice, Holden Commodore, Holden Statesman, HSV Commodore, HSV LS, and Toyota Lexcen.
• Year coverage shown in the fitment data includes examples from 1988 through 1997, depending on model.
• Fitment must still be confirmed against the vehicle’s existing alternator part number, mount style, pulley configuration, and bracket measurements before ordering.

Application and Buying Notes

Before ordering, compare the vehicle’s original alternator against the BXA003 measurements: 12V charging system, 85A output, internal regulator, single leg mount, 183mm mount centre-to-centre, 10mm pivot hole, 8mm adjusting hole, and 61mm 6 groove pulley. Those details are the most useful checks for a Bosch style replacement because they affect how the unit bolts up and drives the belt.

The fitment data supplied for this alternator includes Holden, HSV, and Toyota applications, with model coverage including Berlina, Calais, Caprice, Commodore, Statesman, HSV Commodore, HSV LS, and Toyota Lexcen. That is useful as a starting point, but the final match still depends on the exact vehicle variant, year, and the alternator already fitted to the car.

If you are replacing a charging fault, matching the physical mounting and pulley specification is just as important as matching voltage and amperage. An 85A alternator may be suitable where the original unit is the same output, but the part should only be selected when the Bosch style application, pin code IR110, and bracket dimensions line up with the vehicle.

The unit is new and sold individually as each, with a listed weight of 5.34kg. For commercial use, the warranty is 1 year; for passenger use, the warranty is 3 years. Keep the installation clean and check belt alignment, mounting hardware condition, and connector compatibility during fitting so the replacement can be assessed properly before final assembly.

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 BXA003 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 51mm, Pivot Hole Diameter 10, Pulley Outside Diameter 61mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 183mm, Weight 5.34kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA003, Brand OEX, Description OEX Alternator 12V 85A Bosch Style, Adjusting Hole Diameter 8, Pin Code IR110, Power Rating (Amp) 85, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Single Leg.

OEX Alternator 12V 85A Bosch Style. Part number BXA003 should be checked first. Listed voltage is 12. Listed output rating is 85. 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 BXA003, 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 85 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include HOLDEN BERLINA, HOLDEN BERLINA 1988, HOLDEN BERLINA 1989, HOLDEN BERLINA 1990, HSV COMMODORE, HSV COMMODORE 1989. 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 with part number BXA003, the Bosch style application, and the listed dimensions before purchase. Vehicle model coverage is only a guide; the alternator must match the existing mount, pulley, regulator type, and charging specification.

FAQ

What is the part number for this alternator?

The part number is BXA003. The pin code listed is IR110.

Is this a 12V alternator?

Yes. It is listed as a 12V alternator with an 85A output rating.

Does it use an internal regulator?

Yes. The regulator type is listed as internal.

What pulley setup does it use?

It uses a 6 groove pulley with a 61mm outside diameter.

Which vehicles are listed in the fitment data?

The fitment data includes Holden, HSV, and Toyota applications, with model families such as Berlina, Calais, Caprice, Commodore, Statesman, HSV Commodore, HSV LS, and Toyota Lexcen.

What warranty is listed for this alternator?

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