OEX Alternator 24V 150A Bosch Style BXA9057

The OEX Alternator BXA9057 is a new 24V unit with a 150A power rating, built in Bosch style and listed with a pad mount arrangement. It is intended for applications using a Bosch-type alternator and includes an internal regulator, so the key buying checks are voltage, mounting pattern, shaft size and pulley arrangement.

This alternator is listed under OEX as a rotating electrical component and carries a one year warranty. At 8.0kg, it is a substantial unit, so it is worth confirming the mounting points and physical dimensions before ordering. The stated mount centres are 108mm on Mount Centres A and 190mm on Mount Centres B, with a mount leg thickness of 80mm.

The shaft diameter is 17mm, the pivot hole diameter is 10 / 12, and the pulley section is not applicable. Those details matter when matching the alternator to the machine already fitted, particularly where the existing Bosch-style unit has to line up with the bracket, belt drive and electrical system without modification.

Key Features

• New 24V alternator
• 150A power rating
• Bosch style unit
• Internal regulator
• Pad mount alternator
• Suits Bosch unit make

Specifications

• Brand: OEX
• Type: Alternator
• Voltage: 24V
• Amperage: 150A
• New / Remanufactured: New
• Regulator type: Internal
• Alternator mount: Pad
• Suits unit make: Bosch

Verified fitment applications

• CATERPILLAR 12M
• CATERPILLAR 140M-3
• CATERPILLAR 16M
• CATERPILLAR 16M3
• CATERPILLAR 18M3
• CATERPILLAR 323
• CATERPILLAR 323FL
• CATERPILLAR 324E

Application and Buying Notes

Before buying, confirm that the machine uses a 24V charging system and a Bosch-style alternator with a pad mount. The most important identifiers here are part number BXA9057, OEM number 352-4700, and the electrical rating of 150A, because those are the clearest checks for matching the replacement to the existing unit.

The mounting dimensions should be checked carefully against the alternator already fitted. This unit lists Mount Centres A at 108mm, Mount Centres B at 190mm, a mount leg thickness of 80mm, and a shaft diameter of 17mm. If any of those physical points differ from the current alternator, the part may not line up correctly even if the electrical rating appears similar.

Fitment information is shown for a number of Caterpillar applications, including 12M, 140M-3, 16M, 323, 326, 330, 336, 345 and 349 series machines, but the safest approach is to verify the exact application against the part number on the existing alternator. Model families can share similar charging components while still using different brackets, regulators or shaft dimensions.

The pulley section is listed as not applicable, so the belt drive arrangement should be checked against the machine before purchase. The alternator weight is 8.0kg, which is another useful reference when comparing the replacement to the original unit and handling installation planning.

If you are replacing a failed alternator, compare the old unit for the label details, connector style, bracket spacing and pivot hole size before ordering. A 24V, 150A Bosch-style alternator is a specific match, and the internal regulator and pad mount arrangement should suit the intended application only where those details are already present on the machine.

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 BXA9057 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 Centres B 190mm, Pivot Hole Diameter 10 / 12, Pulley Section Not Applicable, Shaft Diameter 17mm, Voltage 24, New / Reman. New, Weight 8.0kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXA9057, Brand OEX, Description OEX Alternator 24V 150A Bosch Style, Mount Centres A 108mm, Mount Leg Thickness 80mm, Power Rating (Amp) 150, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Pad.

OEX Alternator 24V 150A Bosch Style. Part number BXA9057 should be checked first. Listed voltage is 24. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXA9057, 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 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CATERPILLAR 12M, CATERPILLAR 12M 2001, CATERPILLAR 140M-3, CATERPILLAR 140M-3 2016. 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 BXA9057 and OEM number 352-4700 against the alternator currently fitted, then verify 24V system voltage, Bosch-style unit make, pad mount arrangement, 108mm/190mm mount centres, 17mm shaft diameter and the 10 / 12 pivot hole diameter before purchase.

FAQ

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What voltage and output does this alternator have?

It is a 24V alternator with a 150A power rating.

Does it use an internal regulator?

Yes. The regulator type is listed as internal.

What mounting style does it use?

It is listed as a pad mount alternator with Mount Centres A of 108mm and Mount Centres B of 190mm.

What part number should I check against my existing unit?

The listed part number is BXA9057, and the OEM number shown is 352-4700.

Which machines are shown with fitment information?

Fitment information includes Caterpillar applications such as 12M, 140M-3, 16M, 323, 326, 330, 336, 345 and 349 series models.