OEX Alternator 12V 160A Bosch Style BXA4038

The OEX BXA4038 is a new 12V alternator with a 160A power rating, built in a Bosch style with a pad mount configuration. It is listed with an internal regulator, 6 groove pulley, and a 56mm pulley outside diameter, so the physical match and charging setup both need to suit the vehicle before purchase.

This unit is identified as one of two identical-looking alternators with different regulator functions. The note to confirm by OE number is important here, and the alternator has a D+(Lamp) terminal for LIN terminal use BXA068. If the OE number does not line up, the visual match alone is not enough to confirm fitment.

For installation reference, the alternator has 82mm inside mounting legs, 150mm mount centre to centre, an M8x1.25 adjusting hole, an 8.5mm pivot hole, and 20mm mount leg thickness. It weighs 7.88kg and is supplied as a single each unit under part number BXA4038.

Key Features

• 12V alternator with 160A output
• Bosch style unit
• New alternator, not remanufactured
• Internal regulator type
• 6 groove pulley
• Pad mount alternator design

Specifications

• Brand: OEX
• Part number: BXA4038
• Type: Alternator
• Voltage: 12V
• Power rating: 160A
• Suits unit make: Bosch
• Regulator type: Internal
• Alternator mount: Pad

Fitment guidance

• Confirmed fitment must be checked against the OE number and the application details for the vehicle.
• The listed data includes multiple makes and models in the fitment set, but this part should still be matched by OE number before ordering.
• Fitment information supplied includes applications across Audi, BMW, Mercedes-Benz, Mini, Peugeot, Porsche, Renault, Saab, Volkswagen, and Volvo ranges.
• The note specifically warns that there are two identical-looking alternators with different regulator functions, so regulator style and terminal arrangement must be checked as part of the match.

Application and Buying Notes

Before ordering, compare the OE number on the original alternator with BXA4038 and make sure the unit is the Bosch style 12V 160A version with an internal regulator. Because this alternator is described as one of two identical-looking units with different regulator functions, a visual check alone is not enough.

Physical dimensions matter with rotating electrical parts, especially where the mount is a pad type. Check the 82mm inside mounting legs, 150mm mount centre to centre, M8x1.25 adjusting hole, 8.5mm pivot hole, and 20mm mount leg thickness against the vehicle and the removed unit.

The pulley arrangement also needs to line up correctly. This alternator has a 6 groove pulley with a 56mm outside diameter, so belt type and pulley profile should be confirmed before fitting. The unit weighs 7.88kg, which can also help when comparing the replacement to the original part on the bench.

Wiring and terminal style are just as important as the mounting points. This unit has a D+(Lamp) terminal for LIN terminal use BXA068, so the charging system setup needs to suit that arrangement. If the vehicle uses a different regulator or terminal configuration, the part should not be assumed to fit.

OEX lists this alternator as new and backed by a 3 year passenger / 1 year commercial warranty. Warranty terms are useful, but they do not replace fitment checking. The safest approach is to verify part number, OE number, regulator type, pulley section, and mounting measurements before completing the order.

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 BXA4038 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 82mm, Pin Code IR111, Power Rating (Amp) 160, Pulley Section 6 Groove, Suits Unit Make Bosch, Note One of two identical looking alternators, both with different regulator functions. Confirm by OE number. Has D+(Lamp) terminal for LIN terminal use BXA068, Mount Cnt to Cnt 150mm.

Additional published details for cross-checking include Weight 7.88kg, Product Group 1 ROTATING ELECTRICAL, Part No. BXA4038, Brand OEX, Description OEX Alternator 12V 160A Bosch Style -Confirm by OE number, Adjusting Hole Diameter M8x1.25, Mount Leg Thickness 20mm, Pivot Hole Diameter 8.5, Pulley Outside Diameter 56mm, Regulator Type Internal.

OEX Alternator 12V 160A Bosch Style -Confirm by OE number. Part number BXA4038 should be checked first. Listed voltage is 12. Listed output rating is 160. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. 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 BXA4038, 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 compatibility using the OE number, regulator type, terminal arrangement, pulley section, and mounting dimensions before purchase. The part number for this alternator is BXA4038.

FAQ

What is the part number for this alternator?

The part number is BXA4038.

Is this a new or remanufactured alternator?

This is listed as a new alternator.

What voltage and output does it have?

It is a 12V alternator with a 160A power rating.

What type of regulator does it use?

It has an internal regulator.

What pulley setup does it have?

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

How should fitment be confirmed?

Confirm fitment by matching the OE number and checking the regulator type, terminal arrangement, pulley section, and mounting dimensions against the original unit and vehicle application.