OEX Alternator 12V 140A Bosch Style BXA046

The OEX BXA046 is a new 12V alternator with a 140A power rating, built in Bosch style and identified with pin code IR139. It uses an internal regulator and a 6 groove pulley, which are key details to confirm before ordering.

This unit is listed with a quad leg alternator mount, 127mm mount centre to centre, 60mm inside mounting legs, and an M8x1.25 / 8 pivot hole diameter. Those measurements matter when comparing the replacement against the original unit in the vehicle.

It is not suitable for start stop applications. That note is important because alternators used on start stop vehicles can differ in control strategy and duty cycle, even when the exterior housing appears similar.

The alternator is supplied as each unit, weighs 7kg, and carries OEX part number BXA046. The listed warranty is 3 years for passenger use and 1 year for commercial use.

Key Features

• 12V alternator with 140A output
• Bosch style unit
• Internal regulator
• 6 groove pulley
• Quad leg mount
• New unit

Specifications

• Brand: OEX
• Part number: BXA046
• Type: Alternator
• Voltage: 12V
• Power rating: 140A
• Pin code: IR139
• Pulley section: 6 groove
• Pulley outside diameter: 56mm

Fitment guidance

• Fitment data supplied includes a wide range of makes and models, including Audi, BMW, Chrysler, Citroën, Cupra, Daewoo, Dodge, Ford, Holden, Iveco, Jaguar, Jeep, Mercedes-Benz, Mini, Opel, Peugeot, Renault, Rolls-Royce, Skoda, Suzuki, Toyota, Volkswagen, and Volvo.
• Example listed applications include Audi A1, Audi A3, BMW 5, BMW X5, Chrysler Sebring, Citroën DS3, Cupra Leon, Ford Transit, Holden Combo, Iveco Daily, Jaguar XJ, Jeep Patriot, Mercedes-Benz E-Class, Mini Countryman, Peugeot 308, Skoda Octavia, Volkswagen Caddy, Volkswagen CC, and Volvo XC60.
• Because the fitment list is broad, the part number, pulley type, mounting measurements, and regulator details should be matched carefully against the original alternator before purchase.
• The alternator is specifically not suitable for start stop applications, so vehicles with that system should be checked separately before ordering.

Application and Buying Notes

When checking this alternator, start with the part number BXA046 and the mounting details: quad leg mount, 127mm mount centre to centre, 60mm inside mounting legs, and M8x1.25 / 8 pivot hole diameter. These are the practical checks that help confirm the replacement will physically line up with the existing brackets.

The 12V, 140A specification is also important. A replacement alternator should match the vehicle’s electrical system voltage, and the output rating should be suitable for the vehicle’s original application. This unit is listed as Bosch style with an internal regulator, so those features should be compared with the removed unit rather than assumed.

The 6 groove pulley and 56mm pulley outside diameter are additional points to confirm. If the belt arrangement on the vehicle is different, the alternator may not be a direct match even if the make and model appear on a fitment list.

This alternator is new and weighs 7kg, which can be useful when comparing it with a removed unit during inspection. The warranty is 3 years for passenger vehicles and 1 year for commercial vehicles, so keep the purchase aligned with the vehicle’s use case.

The note about start stop applications should be taken seriously. If the vehicle uses start stop technology, confirm the replacement requirements before fitting, as this alternator is not suitable for that application. If the original unit has the same Bosch style housing but different control or pulley arrangements, those differences still need to be checked.

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 BXA046 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) 140, Pulley Section 6 Groove, Suits Unit Make Bosch, Note Not suitable for start stop applications., Mount Cnt to Cnt 127mm, Weight 7kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA046, Brand OEX, Description OEX Alternator 12V 140A Bosch Style - See Note, Inside Mounting Legs 60mm, Pivot Hole Diameter M8x1.25 / 8, Pulley Outside Diameter 56mm, Regulator Type Internal, Voltage 12, Alternator Mount Quad Leg.

OEX Alternator 12V 140A Bosch Style - See Note. Part number BXA046 should be checked first. Listed voltage is 12. Listed output rating is 140. 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 BXA046, 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 by matching part number BXA046, the 12V 140A specification, Bosch style design, 6 groove pulley, internal regulator, and all mounting measurements against the original alternator before ordering. Do not rely on vehicle appearance alone, and take extra care where start stop systems are involved.

FAQ

Is this alternator new or remanufactured?

This unit is listed as new.

What is the voltage and output rating?

It is a 12V alternator with a 140A power rating.

Does it have an internal regulator?

Yes. The listed regulator type is internal.

Is it suitable for start stop vehicles?

No. It is specifically noted as not suitable for start stop applications.

What pulley type does it use?

It uses a 6 groove pulley, with a 56mm pulley outside diameter.

What warranty is listed?

The listed warranty is 3 years for passenger vehicles and 1 year for commercial vehicles.