Bosch Alternator 24V 55A New BXU2456A

This Bosch alternator is a new 24V unit rated at 55A, supplied each under part number BXU2456A. It is listed as a Bosch unit with an internal regulator, single leg mount, and a reduction drive arrangement designed for easier starting and steady operating speed.

Key physical details include a 92mm pulley outside diameter, 51mm mount leg thickness, 183mm mount centre to centre, M8x1.25 adjusting hole diameter, 10mm pivot hole diameter, and a 17 shaft dimension. The alternator weighs 5.72kg and uses an AA pulley section.

As a rotating electrical component, correct fitment depends on the mounting style, pulley arrangement, voltage, and the part number match. The supplied application information includes a range of CASE, International Harvester, John Deere, Komatsu, Liebherr, and Neuson Forest machines, but the exact machine must still be checked against the listed dimensions and application details before purchase.

Key Features

• New Bosch alternator
• 24V, 55A output
• Internal regulator
• Single leg mount
• AA pulley section
• Reduction drive design

Specifications

• Part No.: BXU2456A
• Brand: Bosch
• Type: Alternator
• Voltage: 24
• Power Rating: 55A
• New / Reman.: New
• Regulator Type: Internal
• Alternator Mount: Single Leg

Supported application groups supplied

• CASE applications listed include 1187C, 2294, 488, 621, 621B, 721, 821, 821C, 821CXR, 9030, 9030B, 9040, CX210, CX240, CX240B, and CX290.
• INTERNATIONAL HARVESTER applications listed include 3944, 3945, 3960, and 3961.
• JOHN DEERE applications listed include 330C LC, 330LC, 370, 370C, 624H, 644H, 644J, 670B, 670C, 700J-11, and 850C.
• KOMATSU applications listed include D41A, D41E-6/P-6, D41P, GD621R, GD655A, PC200, PC200-3, PC200-5, PC210-6/LC-6, PC220, PC220-3, PC240NLC-6, PC280, PC290LC-7, PC290NLC-6, PC290NLC-7, PC300, PW200, PW210, WA100, WA120, WA180-3, WA250, WA270-3, and WA470.
• LIEBHERR PR714 is listed.
• NEUSON FOREST applications listed include 183HVT and 243HV / 243HVT.

Application and Buying Notes

Before ordering, check that the machine uses a 24V charging system and that the alternator mounting layout matches a single leg mount. The listed mount centre to centre is 183mm, with a 51mm mount leg thickness, so those measurements should be compared carefully against the existing unit or the machine’s mounting points.

Pulley details matter as much as electrical output. This alternator is listed with an AA pulley section and a 92mm pulley outside diameter, so the belt arrangement should be checked against the current alternator and belt drive setup. The 10mm pivot hole diameter, M8x1.25 adjusting hole, and 17 shaft dimension are also important when confirming whether the unit will physically install correctly.

The 55A output is the listed power rating, which makes this a modest-output 24V alternator rather than a higher-amperage alternative. If the machine has additional electrical loads, confirm the original alternator rating and the vehicle’s electrical requirements before buying. Matching the part number BXU2456A is the safest way to verify the correct unit.

This alternator is new, not remanufactured, and carries a one year warranty. For best results, compare the old alternator’s tag, mounting ears, pulley section, and regulator style with the Bosch unit here before fitting. A close visual match is helpful, but the confirmed dimensions and application listing should still be used as the final check.

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 BXU2456A 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 One Year, Mount Leg Thickness 51mm, Power Rating (Amp) 55, Pulley Section AA, Suits Unit Make Bosch, Alternator Mount Single Leg, New / Reman. New, Weight 5.72kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXU2456A, Brand BOSCH, Description Bosch Alternator 24V 55A, Adjusting Hole Diameter M8x1.25, Pivot Hole Diameter 10, Pulley Outside Diameter 92mm, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 183mm.

Bosch Alternator 24V 55A. Part number BXU2456A 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 BXU2456A, 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: Please confirm fitment by matching part number BXU2456A, the 24V 55A specification, the single leg mount, and the listed mounting and pulley dimensions against your existing alternator and machine application.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What voltage and amperage does it have?

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

What part number should I match?

The listed part number is BXU2456A.

Does it use an internal regulator?

Yes, the regulator type is listed as internal.

What mount style is listed?

It is listed as a single leg mount alternator.

What should I check before ordering?

Confirm the 24V system, BXU2456A part number, single leg mount, AA pulley section, and the listed dimensions including 183mm mount centre to centre, 51mm mount leg thickness, 92mm pulley outside diameter, M8x1.25 adjusting hole, and 10mm pivot hole.