OEX Alternator 24V 55A Bosch Style BXA004

This OEX alternator is a 24V, 55 amp unit built in Bosch style and identified by part number BXA004. It is a new alternator, supplied each, with an internal regulator and a single leg mount arrangement, so the key checks are voltage, mounting style and physical dimensions before purchase.

The listed measurements include a 92mm pulley outside diameter, AA pulley section, 51mm mount leg thickness, 10mm pivot hole diameter, M8 x 1.25 adjusting hole, 187mm mount centre-to-centre and a 17 shaft dimension. Those figures matter because alternators that look similar can still differ in mounting and pulley setup enough to prevent a direct swap.

OEX describes the unit as suitable for Bosch applications. The product also carries a 3yr passenger / 1yr commercial warranty, which is useful to note when comparing it with a repair option or a remanufactured unit. At 5.54kg, it is a substantial rotating electrical component and should be matched carefully to the vehicle’s original alternator arrangement.

Key Features

• 24V, 55A alternator
• Bosch style unit
• Part number BXA004
• New alternator, supplied each
• Internal regulator
• Single leg mount

Specifications

• Voltage: 24V
• Power rating: 55A
• Regulator type: Internal
• Alternator mount: Single leg
• Mount leg thickness: 51mm
• Pivot hole diameter: 10mm
• Adjusting hole diameter: M8 x 1.25
• Mount centre-to-centre: 187mm

Application guidance

• Listed for Bosch style applications
• Verify the original part number BXA004 before ordering
• Match 24V charging systems only
• Confirm single leg mount arrangement
• Check 92mm pulley diameter and AA pulley section
• Confirm 51mm mount leg thickness, 10mm pivot hole and M8 x 1.25 adjusting hole
• Check 187mm mount centre-to-centre against the vehicle or machine setup

Application and Buying Notes

The most important buying checks on this alternator are the 24V system, 55A output, Bosch style fitment and the single leg mount. If the existing unit is a different voltage, uses a different regulator type, or has a different mounting pattern, it should not be assumed to interchange just because the housing looks similar.

The pulley details are just as important as the electrical rating. This unit has a 92mm pulley outside diameter with an AA section, so the belt profile and pulley diameter should be compared with the removed alternator or the machine specification. A pulley that does not match can lead to belt tracking issues or installation delays even when the alternator body is close in appearance.

Mounting dimensions are often the deciding factor on heavy equipment and industrial applications. Use the 51mm mount leg thickness, 10mm pivot hole diameter, M8 x 1.25 adjusting hole and 187mm mount centre-to-centre as your reference points. The alternator is listed as new and weighs 5.54kg, so if you are replacing a damaged unit, keep the old one nearby to compare bracket position, shaft dimension and pulley alignment before final fitment.

The warranty period is 3 years for passenger use and 1 year for commercial use, which may help when comparing replacement options. For commercial or machinery use, it is still worth confirming the charging requirement and installation geometry rather than relying on appearance alone. Alternators can differ in output, regulator layout and mounting even within the same general Bosch style family.

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 BXA004 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 51mm, Pivot Hole Diameter 10, Pulley Outside Diameter 92mm, Regulator Type Internal, Voltage 24, Alternator Mount Single Leg, New / Reman. New.

Additional published details for cross-checking include Weight 5.54kg, Product Group 1 ROTATING ELECTRICAL, Part No. BXA004, Brand OEX, Description OEX Alternator 24V 55A Bosch Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR15, Power Rating (Amp) 55, Pulley Section AA, Suits Unit Make Bosch.

OEX Alternator 24V 55A Bosch Style. Part number BXA004 should be checked first. Listed voltage is 24. Listed output rating is 55. 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 AA. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA004, 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 24 and output 55 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CASE 1187C, CASE 2294, CASE 488, CASE 621, INTERNATIONAL HARVESTER 3944, INTERNATIONAL HARVESTER 3945. 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 BXA004, 24V charging system details, Bosch style application, single leg mount dimensions and pulley size before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does this alternator have?

It is a 24V alternator with a 55A power rating.

Does this unit have an internal regulator?

Yes. The regulator type is listed as internal.

What mounting details should be checked before buying?

Check the single leg mount, 51mm mount leg thickness, 10mm pivot hole diameter, M8 x 1.25 adjusting hole and 187mm mount centre-to-centre.

What pulley details are listed for this alternator?

The pulley outside diameter is 92mm and the pulley section is AA.

What warranty is supplied with this alternator?

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