OEX Alternator 24V 100A Delco 34SI Style DXA9125

The OEX Alternator DXA9125 is a new 24V, 100A alternator built in Delco 34SI style for rotating electrical applications. It uses an internal regulator, a pad mount, and a brushless unit design, so the key checks before purchase are voltage, amperage, mounting style, and unit make.

This unit is listed for Delco applications and carries the OEX part number DXA9125. Measured details provided include 190mm mount centre-to-centre, 126mm inside mounting legs, 80mm mount leg thickness, a 22mm shaft diameter, and pivot and adjusting hole sizes noted as 11 / 12 and 11 / 10 respectively.

As a 24V alternator rated at 100 amps, this unit is intended for systems that match those electrical and physical dimensions. Weight is listed at 12.44kg, which is useful when comparing the assembly against the original unit and confirming you are dealing with the same style and size before ordering.

Key Features

• 24V alternator with 100A output
• Delco 34SI style
• New unit, not remanufactured
• Internal regulator
• Brushless unit
• Pad mount design

Specifications

• Voltage: 24V
• Power rating: 100A
• Series: 34SI
• Type: Alternator
• Unit of measure: Each
• New / remanufactured: New
• Regulator type: Internal
• Alternator mount: Pad

Verified fitment references

• BOMAG BM1200/30
• BOMAG BM1300/30
• Caterpillar 120K
• Caterpillar 120M
• Caterpillar 12K
• Caterpillar 12M
• Caterpillar 140H
• Caterpillar 140K

Application and Buying Notes

Before ordering, confirm the replacement unit matches the supplied identifiers: OEX DXA9125, Delco 34SI style, 24V voltage, 100A output, and pad mount construction. The physical checks matter as much as the electrical rating, especially the 190mm mount centre-to-centre, 126mm inside mounting legs, and 22mm shaft diameter.

The alternator is described as an internal-regulated, brushless unit. That means it should only be matched to applications designed for that configuration, and the original alternator should be checked for the same mounting layout and terminal arrangement before purchase. The listed 80mm mount leg thickness and pivot and adjusting hole sizes are useful comparison points when identifying the correct replacement.

Fitment references include BOMAG, Caterpillar, Hitachi, Peterson, Sandvik, and Terex O&K applications. Even where a machine family appears in the fitment information, the safest approach is to confirm the exact machine model and the original part details against DXA9125 rather than relying on family name alone.

The 12.44kg weight can also help when comparing to the removed unit, particularly on heavy equipment where alternator housings and brackets can vary. If your existing unit differs in mount style, shaft size, regulator type, or voltage, stop and verify the application before fitting to avoid downtime and unnecessary returns.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with ISO9001-certified factories supporting engineering, testing, and quality control procedures. The listed warranty is 3 years for passenger use and 1 year for commercial use, so it is still important to match the application correctly before installation.

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 DXA9125 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, Inside Mounting Legs 126mm, Pivot Hole Diameter 11 / 12, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24, Alternator Mount Pad, New / Reman. New.

Additional published details for cross-checking include Weight 12.44kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXA9125, Brand OEX, Description OEX Alternator 24V 100A Delco 34SI Style, Adjusting Hole Diameter 11 / 10, Mount Leg Thickness 80mm, Power Rating (Amp) 100, Series 34SI, Suits Unit Make Delco.

OEX Alternator 24V 100A Delco 34SI Style. Part number DXA9125 should be checked first. Listed voltage is 24. Listed output rating is 100. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA9125, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include BOMAG BM1200/30, BOMAG BM1200/30 2016, BOMAG BM1300/30, BOMAG BM1300/30 2016, CATERPILLAR 120K, CATERPILLAR 120M. 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.

The listed warranty is 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by checking the OEX part number DXA9125, the Delco 34SI style, 24V 100A rating, pad mount design, and the physical mounting dimensions against your original alternator before ordering.

FAQ

What is the OEX part number for this alternator?

The listed OEX part number is DXA9125.

What voltage and output does this alternator have?

It is a 24V alternator rated at 100A.

Is this a new or remanufactured unit?

This is listed as a new alternator.

What regulator type does it use?

It uses an internal regulator.

What mounting style is listed?

The alternator mount is listed as pad mount.

How can I confirm compatibility before buying?

Match the part number DXA9125, Delco unit make, 24V voltage, 100A output, 34SI series, pad mount design, and the listed dimensions such as 190mm mount centre-to-centre and 22mm shaft diameter against the original unit.