OEX Alternator 12V 120A Bosch Style BXA4017

This OEX alternator is a 12V, 120A unit in Bosch style, supplied as a new part under part number BXA4017. It is listed with a 6 groove pulley, internal regulator, clockwise rotation, and a multi leg alternator mount, so it is important to compare the physical layout before ordering.

Key dimensions include a 56mm mount leg thickness, 155mm mount centre to centre, 11mm pivot hole diameter, 11mm adjusting hole diameter, and a 48mm pulley outside diameter. Those measurements are the practical checks that matter when matching the alternator to the original unit already in the vehicle or machine.

OEX identifies this alternator as sourced from market leading original equipment manufacturers and aftermarket suppliers, with ISO9001 certified factories supporting engineering, testing, and quality control procedures. It is covered by a 3 year passenger / 1 year commercial warranty, and the unit weight is listed at 6.96kg.

The product is described as suitable for Bosch unit make applications, but the exact vehicle or machine fitment must still be confirmed against the part number, mount style, pulley configuration, and electrical specification. That is especially important where the same Bosch style alternator may appear in different equipment with similar-looking housings but different mounting or output requirements.

Key Features

• 12V alternator with 120A output
• Bosch style replacement
• Internal regulator
• 6 groove pulley
• Clockwise rotation
• New unit, not remanufactured

Specifications

• Voltage: 12V
• Power rating: 120A
• Part number: BXA4017
• Brand: OEX
• Suits unit make: Bosch
• Regulator type: Internal
• Pulley section: 6 groove
• Rotation: Clockwise (CW)

Checked fitment references

• DYNAPAC CA2500D/PD
• DYNAPAC CA252/D
• DYNAPAC CA2800D
• DYNAPAC CA280D-11
• DYNAPAC CA282D
• DYNAPAC CA302D/PD
• DYNAPAC CA3500D
• DYNAPAC CA4000D/PD

Application and Buying Notes

Before buying, match the part number BXA4017 and check the mounting details against the unit you are replacing. The listed 56mm mount leg thickness, 155mm centre-to-centre mount spacing, 11mm pivot and adjusting holes, and multi leg mount are the most useful physical checks when confirming interchange.

The electrical specification is equally important: this unit is 12V with a 120A rating and an internal regulator. If the original alternator uses a different voltage, output, regulator arrangement, or pulley setup, the replacement may not be suitable even if the casing looks similar.

The pulley details should also be verified carefully. This alternator has a 6 groove pulley with a 48mm outside diameter and clockwise rotation, so the belt type and drive direction need to align with the existing application. That matters on equipment where the same engine family may have been fitted with different charging systems.

Because the unit is described as Bosch style and suits Bosch applications, compare the original alternator label, bracket layout, and connections before ordering. The supplied fitment references include DYNAPAC, John Deere, Mercedes-Benz, Porsche, Saab, and Ssangyong applications, but those references should be used as a guide only and not as a substitute for checking the exact part and installation details on the vehicle or machine.

This is a new alternator supplied by OEX and weighs 6.96kg. If the old unit has been changed before, measure the mounting ears and compare the pulley and regulator arrangement rather than relying on appearance alone, as alternators with the same general shape can differ in key dimensions and output.

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 BXA4017 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, Pivot Hole Diameter 11, Pulley Outside Diameter 48mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Multi Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. BXA4017, Brand OEX, Description OEX Alternator 12V 120A Bosch Style, Adjusting Hole Diameter 11, Pin Code IR200, Power Rating (Amp) 120, Pulley Section 6 Groove, Rotation CW.

OEX Alternator 12V 120A Bosch Style. Part number BXA4017 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 Multi 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 BXA4017, 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.

Compatibility note: Confirm compatibility using part number BXA4017, the Bosch style application, and the listed mount, pulley, voltage, and amperage details before ordering.

FAQ

What type of alternator is this?

It is an OEX alternator, 12V and 120A, described as Bosch style. The unit is new and supplied under part number BXA4017.

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What regulator type does it have?

This alternator has an internal regulator.

What pulley setup does it use?

It has a 6 groove pulley with a 48mm outside diameter, and the rotation is clockwise (CW).

What mounting measurements are provided?

The listed mounting details are a 56mm mount leg thickness, 155mm mount centre to centre, 11mm pivot hole diameter, and 11mm adjusting hole diameter. It is also listed as a multi leg alternator mount.

What warranty is supplied?

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