OEX Alternator 12V 120A Bosch Style BXA025

The OEX Alternator BXA025 is a new 12V, 120A unit in Bosch style, supplied as an each item for rotating electrical applications. It features an internal regulator, a 6 groove pulley with 49mm outside diameter, and a quad leg alternator mount, so the physical layout is a key check before ordering.

Mounting dimensions supplied for this alternator include 61mm inside mounting legs, a 127mm mount centre-to-centre measurement, and M8x1.25 / 9 pivot and adjusting hole diameters. These dimensions matter because alternators can share a similar output rating while still differing in bracket style, leg spacing, pulley setup, and hole size.

OEX states that its products are sourced from market leading Original Equipment Manufacturers and aftermarket suppliers, with factories that are ISO9001 certified. This alternator is backed by a 3yr Passenger 1yr Commercial warranty, which makes the part number BXA025 and the listed dimensions useful checkpoints when matching a replacement alternator.

At 120A and 12V, this alternator is intended for vehicles needing a Bosch style rotating electrical replacement with the correct mount and pulley configuration. Weight is listed at 6.88kg, so handling and installation should be planned with the physical size and bracket alignment in mind.

Key Features

• New OEX alternator
• 12V system
• 120A output
• Bosch style unit
• Internal regulator
• 6 groove pulley

Specifications

• Part No.: BXA025
• Brand: OEX
• Product type: Alternator
• New / Reman.: New
• Voltage: 12
• Power rating: 120A
• Regulator type: Internal
• Pulley outside diameter: 49mm

Known application groups

• Audi A3
• Ford Falcon
• Mercedes-Benz 124
• Mercedes-Benz E-Class
• Mercedes-Benz T2/LN1
• Peugeot 405
• Seat Cordoba
• Seat Ibiza

Application and Buying Notes

Before ordering, confirm the part number BXA025 and compare the alternator mount details carefully. This unit is a Bosch style alternator with a quad leg mount, 61mm inside mounting legs, 127mm centre-to-centre mounting, and M8x1.25 / 9 pivot and adjusting holes, so the bracket pattern must match the vehicle application.

The pulley is a 6 groove design with a 49mm outside diameter, which is another important compatibility point. Even where the vehicle family is listed in the application data, pulley groove count and diameter still need to suit the existing belt arrangement on the vehicle.

This alternator is rated at 12V and 120A, so it should be selected to match the electrical system and charging requirement of the vehicle. A correct physical fit is only part of the job; the replacement must also suit the vehicle’s charging specification and regulator arrangement, which here is internal.

The listed weight of 6.88kg gives an indication of the unit size and handling characteristics, but it does not replace a direct comparison with the original part. If the existing alternator differs in mounting style, pulley type, or output rating, it is best to verify all details before fitting.

OEX products are described as being sourced from ISO9001 certified factories, and this alternator is new rather than remanufactured. For buyers comparing replacement options, that distinction can matter when matching service expectations, installation planning, and the level of refurbishment they want to avoid.

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 BXA025 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, Pulley Outside Diameter 49mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 127mm, Weight 6.88kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA025, Brand OEX, Description OEX Alternator 12V 120A Bosch Style, Adjusting Hole Diameter M8x1.25 / 9, Pin Code IR175, Power Rating (Amp) 120, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Quad Leg.

OEX Alternator 12V 120A Bosch Style. Part number BXA025 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 BXA025, 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 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include AUDI A3, AUDI A3 1997, AUDI A3 1998, AUDI A3 1999, FORD FALCON, FORD FALCON 1976. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Confirm fitment by matching part number BXA025, the Bosch style application, and the listed mount and pulley dimensions against the vehicle’s existing alternator before purchase.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What is the output rating?

The alternator is rated at 120A and operates on a 12V system.

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 49mm outside diameter.

What mounting details should I check?

Check the quad leg mount, 61mm inside mounting legs, 127mm mount centre-to-centre, and the M8x1.25 / 9 pivot and adjusting holes.

What warranty is listed?

The listed warranty is 3yr Passenger 1yr Commercial.