OEX Alternator 12V 85A Bosch Style BXA045

The OEX Alternator BXA045 is a new 12V unit rated at 85 amps and built in a Bosch style configuration. It suits Bosch applications and uses an internal regulator, with a single-leg alternator mount, 168mm mount centre-to-centre, 76mm mount leg thickness, and a 3/8 UNC adjusting hole.

This alternator is supplied as each new unit and weighs 8.4kg. Key physical details include a 7/16 pivot hole diameter, 82mm pulley outside diameter, A section pulley, and a 17 shaft dimension, all of which are useful when checking interchange against the original part.

For buyers comparing replacement alternators, the part number BXA045, 12V voltage, and 85A output are the most important identifiers to confirm first. The unit is listed as Bosch style and is backed by a 3 year passenger / 1 year commercial warranty, which gives a clear guide to its intended application and use category.

Key Features

• New OEX alternator
• 12V, 85A output
• Bosch style unit
• Internal regulator
• Single-leg mount
• A section pulley

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: BXA045
• Voltage: 12V
• Power rating: 85 amp
• New / Reman.: New
• Regulator type: Internal
• Suits unit make: Bosch

Fitment guidance

• Bosch style alternator
• Suits unit make: Bosch
• Part No.: BXA045

Application and Buying Notes

When replacing an alternator, match the part number BXA045 first, then confirm the electrical and mounting details against your original unit. This alternator is 12V with an 85A output, so it is important that your vehicle’s charging system was designed for the same voltage and a similar output range before ordering.

The physical mounting dimensions matter just as much as the electrical rating. Check the single-leg mount, 168mm mount centre-to-centre, 76mm mount leg thickness, 3/8 UNC adjusting hole, and 7/16 pivot hole against the unit being removed. If any of those dimensions differ, the alternator may not line up correctly even if the Bosch style appearance looks similar.

Pulley and shaft details also need to be checked carefully. This unit uses an A section pulley with an 82mm outside diameter and a 17 shaft dimension, so pulley alignment and belt match should be confirmed before installation. Those measurements are especially important when you are working from a sample, a worn-out original, or a previous replacement part rather than the vehicle’s factory listing.

The 3 year passenger / 1 year commercial warranty is a useful reference for intended use, but it does not replace fitment checking. If you are fitting this alternator to a passenger vehicle or commercial application, compare the original alternator closely and verify the regulator type, mount layout, and pulley section before purchase.

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 BXA045 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, Mount Leg Thickness 76mm, Power Rating (Amp) 85, Pulley Section A, Suits Unit Make Bosch, Alternator Mount Single Leg, New / Reman. New, Weight 8.4kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA045, Brand OEX, Description OEX Alternator 12V 85A Bosch Style, Adjusting Hole Diameter 3/8 UNC, Pivot Hole Diameter 7 / 16, Pulley Outside Diameter 82mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 168mm.

OEX Alternator 12V 85A Bosch Style. Part number BXA045 should be checked first. Listed voltage is 12. Listed output rating is 85. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA045, 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 85 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by checking part number BXA045, Bosch style application details, 12V voltage, 85A output, and all mounting and pulley measurements against the original alternator before ordering.

FAQ

What is the part number for this alternator?

The part number is BXA045. For this listing, part number BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. These details should still be checked against the original unit before ordering.

Is this alternator new or reconditioned?

It is listed as new. For this listing, part number BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with an 85 amp power rating. For this listing, part number BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. 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 BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. These details should still be checked against the original unit before ordering.

What mounting style does it have?

It has a single-leg alternator mount with 168mm mount centre-to-centre and a 76mm mount leg thickness. For this listing, part number BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. These details should still be checked against the original unit before ordering.

What warranty is listed?

The warranty is 3 years for passenger use and 1 year for commercial use. For this listing, part number BXA045 is the main reference point. Listed voltage is 12. Listed output rating is 85. Published fitment references include CITROEN DS4, CITROEN DS4 2011, CITROEN DS4 2012. These details should still be checked against the original unit before ordering.