OEX Alternator 24V 45A Delco 20SI Style DXA9106

The OEX Alternator DXA9106 is a 24V, 45A unit built in Delco 20SI style and supplied as a new alternator for rotating electrical applications. It uses an internal regulator, a twin leg alternator mount, and is listed with a brushless note, which makes the key identification points clear when matching it to an existing setup.

This unit is specified with an inside mounting leg width of 101mm, a mount centre to centre of 198mm, a pivot hole diameter of 13mm, and an adjusting hole diameter of 1/2 UNC. The shaft diameter is 22mm, the pulley section is not applicable, and the listed weight is 8.58kg, so physical dimensions should be checked carefully before purchase.

OEX lists this alternator against Delco as the unit make and 20SI as the series, with part number DXA9106. The product is covered by a 3 year passenger / 1 year commercial warranty, and the brand notes that its products are sourced through original equipment manufacturers and aftermarket suppliers and made in ISO9001 certified factories.

Key Features

• 24V alternator with 45A output
• Delco 20SI style, suited unit make: Delco
• Internal regulator
• New unit, not remanufactured
• Twin leg alternator mount
• Brushless note

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 24V
• Power rating: 45A
• Series: 20SI
• Part No.: DXA9106
• Unit of measure: Each
• Warranty: 3yr Passenger / 1yr Commercial

Fitment guidance

• Listed suit unit make: Delco
• Series: 20SI
• The supplied fitment preview includes applications across ATLAS COPCO, BERTRAM, CASE IH, CATERPILLAR and CATERPILLAR AGRICULTURAL
• Sample applications shown include ATLAS COPCO XAMS 355, BERTRAM 42, BERTRAM 50, CASE IH A8000 AUSTOFT, and CATERPILLAR 120G, 120H, 12G and 12H

Application and Buying Notes

Before ordering, compare the part number DXA9106, the Delco 20SI style, and the physical mounting details against the alternator currently fitted to the machine or vehicle. The critical checkpoints here are 24V output, 45A rating, 101mm inside mounting legs, 198mm mount centre to centre, 13mm pivot hole diameter, 1/2 UNC adjusting hole, and 22mm shaft diameter.

The twin leg mount and internal regulator are important because they affect how the alternator sits and how it interfaces with the charging system. If the current unit is an externally regulated alternator, a different mount pattern, or a different shaft arrangement, this part should not be assumed to interchange just because the application family looks similar.

The listed applications span industrial and heavy-duty equipment, including ATLAS COPCO, BERTRAM, CASE IH, and CATERPILLAR variants. That makes accurate identification especially important, because the same series name or machine family can still have different alternator arrangements depending on build year, engine, or equipment specification.

The 8.58kg weight and non-applicable pulley section are also useful cross-checks when comparing an old unit in the workshop. If the existing alternator has a pully arrangement, different mounting ears, or a different regulator type, confirm the replacement requirements before fitting, especially on equipment where downtime matters.

Warranty coverage is listed as 3 year passenger and 1 year commercial. That may help when choosing a replacement, but it does not replace fitment verification. Matching the part number, voltage, amperage, mounting dimensions, and unit make remains the safest way to avoid installation issues.

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 DXA9106 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) 45, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Weight 8.58kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXA9106, Brand OEX, Description OEX Alternator 24V 45A Delco 20SI Style, Adjusting Hole Diameter 1/2 UNC, Pivot Hole Diameter 13, Pulley Section Not Applicable, Series 20SI, Suits Unit Make Delco.

OEX Alternator 24V 45A Delco 20SI Style. Part number DXA9106 should be checked first. Listed voltage is 24. Listed output rating is 45. 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 Not Applicable. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA9106, 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 45 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using part number DXA9106, Delco 20SI style, 24V system voltage, 45A output, and the listed mounting and shaft dimensions before ordering. If the existing alternator does not match those details, do not assume interchangeability.

FAQ

What is the part number for this alternator?

The listed part number is DXA9106.

What voltage and amperage does it have?

It is a 24V alternator with a 45A power rating.

Is this a new or remanufactured unit?

This alternator is listed as new.

What mounting style does it use?

It uses a twin leg alternator mount, with 101mm inside mounting legs and 198mm mount centre to centre.

What regulator type does it have?

The regulator type is internal.

Which applications are shown for this alternator?

The fitment preview includes ATLAS COPCO XAMS 355, BERTRAM 42, BERTRAM 50, CASE IH A8000 AUSTOFT, and CATERPILLAR models such as 120G, 120H, 12G and 12H.