OEX Alternator 12V 70A Bosch Style BXA029

The OEX Alternator BXA029 is a new 12V, 70A unit in Bosch style, supplied as a twin leg alternator mount with an internal regulator. Key fitment dimensions include 42mm inside mounting legs, a 10mm pivot hole diameter, an 8.5mm adjusting hole diameter, and a 60mm pulley outside diameter with a 5 groove pulley section.

This alternator is listed as suit unit make Bosch and carries the pin code IR49. It is sold as each and weighs 4.72kg, so it is worth checking the mounting arrangement, pulley style, and electrical connection details before ordering, especially where the existing alternator has a different case style or mounting pattern.

OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified to support engineering, testing, and quality control procedures. The alternator is backed by a 3 year passenger and 1 year commercial warranty, which is useful context when selecting a replacement for a 12V charging system.

If you are replacing a Bosch style alternator, the practical checks are the part number BXA029, the 70 amp output, the twin leg mounting setup, and the pulley specification. The note also advises that when replacing a Denso alternator, use DXA470, and that an adaptor suits HXK-32 and HXK-24.

Key Features

• New 12V alternator
• 70A output rating
• Bosch style unit
• Internal regulator
• Twin leg alternator mount
• 5 groove pulley

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: BXA029
• Voltage: 12V
• Power rating: 70A
• New / remanufactured: New
• Regulator type: Internal
• Alternator mount: Twin leg

Fitment and application guidance

• Fitment data references BMW X3 models from 2010 to 2014.
• Fitment data references Holden Nova models from 1991 to 1997.
• Fitment data references Toyota Corolla models from 1988 to 1998.
• Fitment data also references Toyota Sprinter and Toyota Sprinter Trueno.
• Use the part number, mount style, pulley details, and connection code to confirm application before purchase.

Application and Buying Notes

This alternator is a 12V, 70A Bosch style replacement, so the main checks are not just vehicle make and model, but the physical alternator layout on the engine. The twin leg mount, 42mm inside mounting legs, 10mm pivot hole, 8.5mm adjusting hole, and 60mm 5 groove pulley all need to match the existing unit or the vehicle’s bracket arrangement.

The fitment information points to BMW X3, Holden Nova, Toyota Corolla, Toyota Sprinter, and Toyota Sprinter Trueno applications, but those vehicle references should still be checked against the exact alternator fitted to the car. Matching the part number BXA029 and the pin code IR49 is the safest way to narrow the replacement down before ordering.

If you are comparing this against a removed alternator, pay close attention to the regulator type, pulley section, and mount centre to centre measurement of 164mm. Small differences in mounting ears, pulley width, or connector style can stop a part from lining up correctly even when the vehicle family appears similar.

The note on the product is also important: when replacing a Denso alternator, use DXA470, and an adaptor suits HXK-32 and HXK-24. That means this Bosch style unit should be checked carefully against the original charging unit type rather than chosen on model name alone.

The warranty is 3 years for passenger use and 1 year for commercial use, which gives useful buying context, but it does not replace a fitment check. Confirm the mounting dimensions, connector identification, and pulley configuration before installation so the alternator is matched to the vehicle’s existing charging system.

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 BXA029 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 42mm, Pivot Hole Diameter 10, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA029, Brand OEX, Description OEX Alternator 12V 70A Bosch Style, Adjusting Hole Diameter 8.5, Pin Code IR49, Power Rating (Amp) 70, Pulley Section 5 Groove, Suits Unit Make Bosch.

OEX Alternator 12V 70A Bosch Style. Part number BXA029 should be checked first. Listed voltage is 12. Listed output rating is 70. 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 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

Compatibility note: Please confirm fitment by matching part number BXA029, the Bosch style application, and the stated mounting and pulley dimensions against the vehicle’s original alternator before purchase.

FAQ

What type of alternator is this?

It is a new OEX alternator, 12V and 70A, in Bosch style with an internal regulator.

What is the part number?

The part number is BXA029.

What mounting details are listed?

It has a twin leg alternator mount, 42mm inside mounting legs, a 10mm pivot hole, an 8.5mm adjusting hole, and a 164mm mount centre to centre measurement.

What pulley specification does it use?

It has a 60mm pulley outside diameter and a 5 groove pulley section.

Which vehicles are mentioned in the fitment data?

The fitment data references BMW X3, Holden Nova, Toyota Corolla, Toyota Sprinter, and Toyota Sprinter Trueno applications.

What should I check before ordering?

Confirm the part number BXA029, the Bosch style casing, the 12V 70A rating, the mount style, pulley section, and the connector pin code IR49 against the original unit.