OEX Alternator 12V 120A Bosch Style BXA023

The OEX Alternator BXA023 is a new 12V 120A unit in Bosch style, supplied as an alternator for vehicles fitted with a Bosch-type charging system. It uses an internal regulator, a 6 groove pulley section, and is fitted with a clutch style pulley. The unit weighs 7.1kg and is sold as each.

Mounting details matter on alternators, and this unit is specified with a quad leg alternator mount, 61mm inside mounting legs, a 127mm centre-to-centre mount, and M8x1.25 / 9.5 pivot and adjusting hole diameters. Those measurements are the key checks before ordering, especially when replacing an existing Bosch-style alternator.

OEX positions this unit as a new rotating electrical part sourced through market leading OEM and aftermarket supply channels, with factories stated as ISO9001 certified. The listed warranty is 3yr Passenger and 1yr Commercial, which gives a useful reference point when choosing a replacement alternator for a compatible application.

Key Features

• 12V alternator with 120A output
• Bosch style unit
• Internal regulator
• New unit
• 6 groove pulley section
• Clutch style pulley fitted

Specifications

• Part No.: BXA023
• Brand: OEX
• Product type: Alternator
• Power rating: 120 amp
• Voltage: 12V
• Regulator type: Internal
• Suits unit make: Bosch
• Pulley outside diameter: 56mm

Known fitment references

• Audi A3
• Audi A4
• Audi A6
• Audi TT
• Seat Cordoba
• Skoda Octavia
• Volkswagen Beetle
• Volkswagen Bora

Application and Buying Notes

Before ordering, check the part number BXA023 against the alternator already fitted to the vehicle and compare the mounting layout carefully. The important physical points here are the Bosch style body, quad leg mount, 61mm inside mounting legs, 127mm mount centre-to-centre, and M8x1.25 / 9.5 pivot and adjusting holes.

The electrical specification is 12V and 120A, so this unit is intended to replace an alternator with the same system requirements. If the vehicle uses a different voltage, a different output rating, or a different regulator arrangement, it should not be assumed to match without verification.

The pulley details are also important. This alternator has a 56mm pulley outside diameter, a 6 groove pulley section, and a clutch style pulley fitted. When replacing a unit, the belt type and pulley arrangement need to be checked against the existing alternator to avoid mismatch.

Vehicle model naming alone is not enough to confirm compatibility. The fitment references include Audi, Seat, Skoda and Volkswagen applications, but final confirmation should always be made by comparing the alternator part number, mounting measurements, pulley style, and the vehicle’s existing charging system setup.

For commercial use, the listed warranty is 1yr Commercial, while passenger use is listed as 3yr Passenger. That warranty distinction is worth noting when selecting the correct replacement for the vehicle’s duty cycle and service environment.

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 BXA023 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 61mm, Pivot Hole Diameter M8x1.25 / 9.5, Pulley Outside Diameter 56mm, Regulator Type Internal, Voltage 12, Alternator Mount Quad Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA023, Brand OEX, Description OEX Alternator 12V 120A Bosch Style, Adjusting Hole Diameter M8x1.25 / 9.5, Pin Code IR139, Power Rating (Amp) 120, Pulley Section 6 Groove, Suits Unit Make Bosch.

OEX Alternator 12V 120A Bosch Style. Part number BXA023 should be checked first. Listed voltage is 12. Listed output rating is 120. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA023, 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 the BXA023 part number, Bosch style application, 12V 120A rating, quad leg mount, and all mounting and pulley measurements with the vehicle already fitted. If any one of those details differs, check the application carefully before purchase.

FAQ

Is this alternator new or reconditioned?

It is listed as a new alternator. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.

What is the output rating?

The alternator is rated at 120 amp and operates at 12V. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.

What pulley setup does it have?

It has a 6 groove pulley section and is fitted with a clutch style pulley. The pulley outside diameter is 56mm. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.

What mounting measurements should I check?

Check the quad leg mount, 61mm inside mounting legs, 127mm mount centre-to-centre, and M8x1.25 / 9.5 pivot and adjusting hole diameters. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.

What warranty is listed?

The listed warranty is 3yr Passenger and 1yr Commercial. For this listing, part number BXA023 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include AUDI A3, AUDI A3 1998, AUDI A3 1999. These details should still be checked against the original unit before ordering.