OEX Alternator 12V 100A Bosch Style BXA072

The OEX Alternator BXA072 is a 12V, 100A unit built in Bosch style and supplied new, not remanufactured. It uses an internal regulator, a 6 groove pulley, and a twin leg alternator mount with 51mm inside mounting legs, so the physical mounting arrangement and pulley style need to match the vehicle and the original unit.

This alternator is listed as suitable for Holden V6 applications, with fitment data also referencing Holden and HSV passenger vehicle applications including Commodore, Calais, Caprice, Crewman, One Tonner, Statesman, Vectra and HSV GTS variants. Because alternators can look similar while differing in mounting, pulley and plug details, the part number BXA072 and the Bosch-style specification are the most useful checks before ordering.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with production from ISO certified factories. The unit is backed by a 3 year passenger warranty and 1 year commercial warranty, which gives a clear reference point for private-use versus commercial-use purchasing.

At 5.12kg, this is a substantial rotating electrical component and should be selected on the basis of the full specification set, not just the amp rating. The pivot hole is M10x1.5 / 10, the adjusting hole diameter is 11.5, and the pulley outside diameter is 56mm, all of which are important compatibility checks when comparing against the vehicle’s original alternator.

Key Features

• 12V alternator, 100A output
• Bosch style unit
• Internal regulator
• New unit, not remanufactured
• 6 groove pulley
• Twin leg alternator mount

Specifications

• Brand: OEX
• Part No.: BXA072
• Product type: Alternator
• Voltage: 12V
• Power rating: 100A
• Suits unit make: Bosch
• Regulator type: Internal
• Alternator mount: Twin leg

Fitment guidance

• Listed as suitable for Holden V6 applications.
• Fitment data references Holden Calais, Holden Caprice, Holden Commodore, Holden Crewman, Holden One Tonner, Holden Statesman and Holden Vectra.
• Fitment data also references HSV and HSV GTS applications.
• Sample application data includes Holden Calais 1995 to 2004 and HSV GTS 1995 to 1999.
• Confirm the Bosch-style mounting, twin leg mount, 51mm inside mounting legs, M10x1.5 / 10 pivot hole and 6 groove pulley before ordering.

Application and Buying Notes

The most important buying check on this alternator is physical match-up. The unit is a Bosch-style 12V 100A alternator with a twin leg mount, 51mm inside mounting legs and a 56mm 6 groove pulley, so the replacement should be compared against the original alternator rather than chosen by amperage alone.

The part number BXA072 is the clearest reference when cross-checking. If the vehicle previously used a Bosch-style alternator and the mounting points, pivot hole and pulley section match, this helps narrow the correct application far more reliably than a general vehicle description.

This alternator is a new unit with an internal regulator. That matters because regulator type, plug arrangement and mount style can differ between similar-looking alternators, even within the same make and model range. The pin code is IR49, which may assist when matching against existing vehicle or parts records.

The listed warranty is 3 years for passenger use and 1 year for commercial use. Warranty coverage does not replace the need to confirm fitment, but it does provide a clear use-based warranty structure for the buyer to consider when choosing the right replacement.

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 BXA072 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 51mm, Pivot Hole Diameter M10x1.5 / 10, Pulley Outside Diameter 56mm, Regulator Type Internal, Voltage 12, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA072, Brand OEX, Description OEX Alternator 12V 100A Bosch Style, Adjusting Hole Diameter 11.5, Pin Code IR49, Power Rating (Amp) 100, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Twin Leg.

OEX Alternator 12V 100A Bosch Style. Part number BXA072 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA072, 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.

Compatibility note: Please confirm fitment using the part number BXA072 and the vehicle’s original alternator details, including Bosch-style specification, twin leg mount, 51mm inside mounting legs, M10x1.5 / 10 pivot hole, 11.5 adjusting hole and 6 groove pulley before purchase.

FAQ

Is this alternator new or remanufactured?

This OEX alternator is listed as new, not remanufactured.

What is the output rating?

It is rated at 12V and 100A.

What type of regulator does it use?

It uses an internal regulator.

What pulley setup does it have?

It has a 6 groove pulley with a 56mm outside diameter.

What is the key part number to match?

The part number is BXA072.

What vehicles is it listed for?

It is listed as suitable for Holden V6 applications, with fitment data also referencing Holden Calais, Caprice, Commodore, Crewman, One Tonner, Statesman and Vectra, plus HSV and HSV GTS applications.