Bosch Alternator 24V 55A BXU2455A

The Bosch Alternator 24V 55A, part number BXU2455A, is a new rotating electrical unit sold each. It is a 24 volt alternator with a 55 amp power rating, internal regulator, and twin leg mount configuration, so the key checks are voltage, amperage, mounting style, and part number before ordering.

This unit is listed with a 65mm inside mounting leg dimension, 187mm mount centre to centre, M10 adjusting hole diameter, M10 pivot hole diameter, and a 65mm pulley outside diameter. Those measurements matter when comparing to the alternator being replaced, especially where the mounting ears, bracket spacing, and pulley setup need to match closely.

The alternator suits Bosch unit make, carries a one year warranty, and is described as new rather than remanufactured. At 8.4kg, it is a substantial electrical component, so handling and installation should be done with care and with the vehicle’s charging system isolated before removal or fitment.

Key Features

• 24V alternator with 55 amp output
• Bosch unit make
• New unit, sold each
• Internal regulator
• Twin leg alternator mount
• Part number BXU2455A

Specifications

• Voltage: 24V
• Power rating: 55A
• Part No.: BXU2455A
• Brand: Bosch
• Type: Alternator
• New / Reman.: New
• Regulator type: Internal
• Alternator mount: Twin Leg

Verified fitment

• International Harvester 515
• International Harvester 515 1983

Application and Buying Notes

Before ordering, compare the replacement alternator against the listed 24V, 55A specification and the Bosch part number BXU2455A. Alternators can look similar while differing in mount style, regulator type, pulley section, or bracket dimensions, so the 65mm inside mounting legs and 187mm mount centre to centre are important checks, not optional details.

The pulley information should also be checked carefully. This unit uses an A pulley section with a 65mm outside diameter and a 17 shaft dimension, which needs to line up with the belt and drive arrangement already on the vehicle. If the belt profile or pulley size does not match, installation problems or charging issues can follow.

Because this alternator is listed as a twin leg mount with M10 adjusting and pivot holes, it is best suited to applications that already use that mounting pattern. The one year warranty covers the product itself, but it does not replace the need to confirm the physical fit and electrical compatibility before fitting.

For buyers replacing a Bosch alternator, the safest approach is to match the part number first, then confirm voltage, amperage, mount style, and pulley details. The 8.4kg weight also gives a practical indication that this is a substantial unit, so allow for proper support during installation and avoid forcing bracket alignment.

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 BXU2455A 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, Inside Mounting Legs 65mm, Power Rating (Amp) 55, Pulley Section A, Suits Unit Make Bosch, Alternator Mount Twin Leg, New / Reman. New, Weight 8.4kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXU2455A, Brand BOSCH, Description Bosch Alternator 24V 55A, Adjusting Hole Diameter M10, Pivot Hole Diameter M10, Pulley Outside Diameter 65mm, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 187mm.

Bosch Alternator 24V 55A. Part number BXU2455A 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 Twin 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 BXU2455A, 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.

Compatibility note: Confirm compatibility using the Bosch part number BXU2455A and the listed application details, including 24V, 55A, twin leg mount, 65mm inside mounting legs, and 187mm mount centre to centre. Where the old unit differs in pulley, bracket spacing, or regulator arrangement, stop and verify before fitting.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.

What is the voltage and output rating?

The alternator is rated at 24V and 55A. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is BXU2455A. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.

What regulator type does it use?

It uses an internal regulator. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.

What mounting style is listed?

It is listed as a twin leg alternator mount with 65mm inside mounting legs and 187mm mount centre to centre. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.

Which vehicles are shown in the fitment data?

The supplied fitment data lists International Harvester 515, including a 1983 application. For this listing, part number BXU2455A is the main reference point. Listed voltage is 24. Listed output rating is 55. Published fitment references include INTERNATIONAL HARVESTER 515, INTERNATIONAL HARVESTER 515 1983. These details should still be checked against the original unit before ordering.