OEX Alternator 12V 200A Bosch Style BXA9055

The OEX Alternator BXA9055 is a 12V, 200A unit with a Bosch-style fitment profile and internal regulator. It is listed as a new alternator with an 8 groove pulley, clockwise rotation, and a 56mm pulley outside diameter, so matching the physical details is just as important as matching the electrical rating.

This alternator suits Bosch applications and is identified with OEM number 0124625031 and pin code IR189. The mounting details include a multi leg alternator mount, 56mm mount leg thickness, and a 10.5mm adjusting hole diameter, which are useful checkpoints when comparing it against the unit already fitted to the vehicle or machine.

OEX states its products are sourced from market leading Original Equipment Manufacturers and aftermarket suppliers, with production from ISO certified factories. The listed warranty is 3 years for passenger use and 1 year for commercial use, making it important to confirm both application and duty cycle before purchase.

Key Features

• 12V alternator with 200A output
• Bosch style unit
• Internal regulator
• 8 groove pulley
• Clockwise rotation
• New unit

Specifications

• Part No.: BXA9055
• OEM Number: 0124625031
• Voltage: 12V
• Power Rating: 200A
• Pulley Section: 8 groove
• Pulley Outside Diameter: 56mm
• Rotation: CW
• Regulator Type: Internal

Fitment guidance

• Suits unit make: Bosch
• Fitment references include CLAAS ARION
• Fitment references include JOHN DEERE 1050K
• Fitment references include JOHN DEERE 370E
• Fitment references include JOHN DEERE 4045D
• Fitment references include JOHN DEERE 410E
• Fitment references include JOHN DEERE 460E
• Fitment references include JOHN DEERE 4730

Application and Buying Notes

Before ordering, compare the part number BXA9055 and OEM number 0124625031 with the alternator already fitted. The Bosch-style designation, internal regulator, and IR189 pin code are useful identifiers, but they still need to line up with the existing unit and wiring arrangement.

The 12V, 200A output is suited to applications that require this charging specification, while the 8 groove pulley and 56mm pulley outside diameter must match the belt setup. If the pulley section or rotation is different, the alternator may not suit even if the mounting pattern looks close.

Mounting details matter here: the alternator uses a multi leg mount, 56mm mount leg thickness, and a 10.5mm adjusting hole diameter. These dimensions should be checked against the current alternator and bracket spacing before purchase, especially where access is tight or the previous unit has been replaced before.

OEX backs the product with a 3 year passenger and 1 year commercial warranty, which is helpful context when choosing between passenger-style and heavier-use applications. The unit is listed as new, not remanufactured, so buyers expecting a fresh replacement unit should still confirm the connection style, mounting, and pulley details before fitting.

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 BXA9055 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 56mm, Power Rating (Amp) 200, Pulley Section 8 Groove, Rotation CW, Voltage 12, Alternator Mount Multi Leg, Insulated Return No.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA9055, Brand OEX, Description OEX Alternator 12V 200A Bosch Style, Adjusting Hole Diameter 10.5, Pin Code IR189, Pulley Outside Diameter 56mm, Regulator Type Internal, Suits Unit Make Bosch.

OEX Alternator 12V 200A Bosch Style. Part number BXA9055 should be checked first. Listed voltage is 12. Listed output rating is 200. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Multi Leg. Regulator type is Internal. Pulley configuration is 8 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA9055, 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 200 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using the part number BXA9055, OEM number 0124625031, Bosch-style application details, and the listed mounting and pulley measurements before ordering.

FAQ

What is the part number for this alternator?

The part number is BXA9055. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.

What voltage and amperage does it have?

It is a 12V alternator rated at 200A. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as new. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It has an internal regulator. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.

What pulley setup does it use?

It has an 8 groove pulley with a 56mm pulley outside diameter and clockwise rotation. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.

What should I check before buying it?

Check the part number BXA9055, OEM number 0124625031, Bosch-style application, mounting style, 56mm mount leg thickness, 10.5mm adjusting hole diameter, and the belt and rotation requirements of the existing alternator. For this listing, part number BXA9055 is the main reference point. Listed voltage is 12. Listed output rating is 200. Published fitment references include CLAAS ARION, CLAAS ARION 2012, JOHN DEERE 1050K. These details should still be checked against the original unit before ordering.