OEX Alternator 24V 100A Delco 34SI Style DXA9126

The OEX Alternator DXA9126 is a new 24V, 100A unit in Delco 34SI style, supplied as an alternator for rotating electrical applications where the matching mounting pattern and electrical setup matter. It is a brushless unit with an internal regulator, so the key checks are voltage, amp output, shaft dimensions and the 34SI-style mounting arrangement before purchase.

This alternator is listed with a quad leg mount, 198mm mount centre to centre, 101mm inside mounting legs, and a 22mm shaft diameter. Those dimensions are important because alternators of the same voltage and amperage can still differ at the brackets, pivots and adjustment points. The part number is DXA9126 and the unit is identified as OEX brand.

OEX states its products are sourced from Original Equipment Manufacturers and aftermarket suppliers, with factories that are ISO9001 certified. The listed warranty is 3 years for passenger use and 1 year for commercial use. For buyers comparing replacement units, the practical checks are the part number, Delco suitability, 24V system requirement and the mounting measurements provided here.

Key Features

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

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA9126
• Series: 34SI
• Suits unit make: Delco
• Voltage: 24V
• Power rating: 100A
• New / Reman.: New

Fitment guidance

• Fitment details supplied reference CATERPILLAR applications including 988G, AP1000D and PM102.
• Sample applications shown include CATERPILLAR 988G 2001, CATERPILLAR AP1000D 2008, CATERPILLAR AP1000D 2009 and CATERPILLAR PM102 2007.
• Use the listed part number and mounting measurements to confirm the replacement before ordering.

Application and Buying Notes

Before ordering, confirm the vehicle or machine uses a 24V charging system and a Delco 34SI-style alternator with the same physical mounting layout. The important matching points here are the 100A output, quad leg mount, 198mm mount centre to centre, 101mm inside mounting legs and 22mm shaft diameter. A similar-looking alternator can still be incorrect if the brackets or shaft dimensions differ.

The internal regulator and brushless design are relevant when matching the replacement to the original charging system. If the existing unit is externally regulated, or if the mounting holes, pivot diameter or adjuster arrangement are different, this alternator may not suit without modification. The listed adjusting hole diameter is 1/2 UNC and the pivot hole diameter is 13mm, so those points are worth checking against the removed unit.

This is a new alternator and it weighs 8.44kg, which can help when comparing like-for-like replacements. The warranty listed is 3 years for passenger use and 1 year for commercial use, so buyers should also consider how the unit will be used. For commercial or heavy-duty use, matching the application accurately is especially important because the fit and load requirements need to align with the original setup.

If you are working from a machine parts catalogue, confirm the part number DXA9126 as well as the application details before fitting. The fitment references supplied point to CATERPILLAR applications, but the safest approach is still to compare the old unit, mounting points, shaft size and electrical specification side by side. That reduces the chance of downtime from an incorrect alternator match.

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 DXA9126 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 101mm, Power Rating (Amp) 100, Series 34SI, Suits Unit Make Delco, Note Brushless unit, Mount Cnt to Cnt 198mm, Shaft Dimension 22.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA9126, Brand OEX, Description OEX Alternator 24V 100A Delco 34SI Style, Adjusting Hole Diameter 1/2 UNC, Pivot Hole Diameter 13, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24.

OEX Alternator 24V 100A Delco 34SI Style. Part number DXA9126 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 Quad Leg. 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 DXA9126, 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.

Compatibility note: Confirm fitment by checking part number DXA9126, Delco 34SI style, 24V system requirement, 100A output, and the mounting and shaft measurements against the unit being replaced. Use the application details provided for CATERPILLAR models only as a reference point, not a substitute for physical verification.

FAQ

What is the part number for this alternator?

The part number is DXA9126.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 24V alternator with a 100A power rating.

What style and series is it?

It is described as Delco 34SI style and the series is 34SI.

What mounting details are listed?

The listed mounting details are a quad leg alternator mount, 198mm mount centre to centre, 101mm inside mounting legs, a 1/2 UNC adjusting hole diameter and a 13mm pivot hole diameter.

What warranty is listed?

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