OEX Alternator 12V 180A Bosch Style Cogged BXA078

The OEX BXA078 is a new 12V alternator rated at 180A and built in a Bosch style with a cogged pulley section. It is listed with an internal regulator, a quad leg alternator mount, and a 62mm pulley outside diameter, so it suits buyers who need the mounting and pulley details to line up with the vehicle application.

This unit is identified as part number BXA078 and pin code IR139. Key physical measurements supplied include 62mm inside mounting legs, M8x1.25 / 9 pivot hole diameter, and 128mm mount centre to centre. Those details matter when matching the alternator to the vehicle and comparing against the original unit.

OEX lists this alternator as part of its rotating electrical range and notes that the factories are ISO9001 certified. The stated warranty is 3 years for passenger use and 1 year for commercial use, which gives a clear service expectation at the point of purchase.

A drive coupler is also noted as needing replacement at the time of fitment. That is an important installation point for anyone replacing the alternator and should be checked before the job begins, especially when confirming the correct Bosch style and cogged pulley arrangement.

Key Features

• New alternator, not remanufactured
• 12V, 180A output
• Bosch style with cogged pulley section
• Internal regulator
• Quad leg alternator mount
• Part number BXA078

Specifications

• Brand: OEX
• Product type: Alternator
• Unit of measure: Each
• Voltage: 12V
• Power rating: 180A
• New / reman.: New
• Suits unit make: Bosch
• Regulator type: Internal

Fitment references supplied

• Holden Barina
• Skoda Octavia
• Volkswagen Transporter
• Volkswagen Transporter / Caravelle
• Fitment references include Holden Barina models from 1989, 1990 and 1991
• Fitment references include Skoda Octavia model years 2008, 2009, 2010, 2011, 2012 and 2013
• Fitment references include Volkswagen Transporter / Caravelle model years 2003 through 2009
• Fitment references also include Volkswagen Transporter model years 2003, 2004 and 2005

Application and Buying Notes

Before ordering, compare the part number BXA078, the Bosch style designation, and the cogged pulley section with the alternator currently fitted to the vehicle. The supplied measurements of 62mm inside mounting legs, 128mm mount centre to centre, and M8x1.25 / 9 pivot hole diameter should be checked carefully against the existing unit and mounting points.

This alternator is listed as 12V and 180A, so it is intended for vehicles that use that charging system specification. The internal regulator is also a key detail, because regulator type must match the application rather than being treated as a universal part detail.

The note to replace the drive coupler at the time of fitment should be treated as part of the installation planning. If the coupler is worn, damaged, or not supplied as needed for the job, the alternator may not be ready to install straight away.

The fitment references supplied point to Holden Barina, Skoda Octavia, and Volkswagen Transporter / Caravelle applications, but the exact vehicle match still needs to be confirmed against the part number and mounting details. Model name alone is not enough when alternators share similar external features but differ in mount, pulley, or regulator configuration.

For commercial use, the warranty is listed as 1 year, while passenger use is listed as 3 years. That distinction is worth noting when the vehicle is used in different service conditions, and it is another reason to verify the intended application before purchase.

At 7.46kg, this is a substantial electrical component, so handling and installation should be done with care. Matching the quad leg mount, pulley diameter, and pin code IR139 to the vehicle application reduces the chance of ordering the wrong unit.

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 BXA078 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, Pin Code IR139, Power Rating (Amp) 180, Pulley Section Cogged, Suits Unit Make Bosch, Note Drive coupler to also be replaced at time of fitment., Item Type Alternator, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA078, Brand OEX, Description OEX Alternator 12V 180A Bosch Style-Cogged, Inside Mounting Legs 62mm, Pivot Hole Diameter M8x1.25 / 9, Pulley Outside Diameter 62mm, Regulator Type Internal, Voltage 12.

OEX Alternator 12V 180A Bosch Style-Cogged. Part number BXA078 should be checked first. Listed voltage is 12. Listed output rating is 180. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Quad Leg. Regulator type is Internal. Pulley configuration is Cogged. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA078, 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: Please confirm fitment using part number BXA078, pin code IR139, and the vehicle’s mounting and pulley details before ordering. Check the 12V 180A specification, internal regulator, quad leg mount, and cogged pulley arrangement against the original alternator, and remember the drive coupler note at fitment.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What is the output rating of this alternator?

The listed power rating is 180A at 12V.

What part number should I use to confirm the match?

The part number is BXA078.

What type of regulator does it have?

It has an internal regulator.

What vehicles are referenced in the fitment data?

The supplied fitment references include Holden Barina, Skoda Octavia, and Volkswagen Transporter / Caravelle applications.

Is there anything noted for installation?

Yes. The notes state that the drive coupler should also be replaced at the time of fitment.