OEX Alternator 24V 100A Delco 33SI Style DXA9122

The OEX Alternator DXA9122 is a new 24V, 100A unit built in Delco 33SI style. It is listed with an internal regulator, twin leg alternator mount, 198mm mount centre-to-centre and 101mm inside mounting legs, so it suits buyers who need those physical and electrical details matched before ordering.

This alternator is for the Delco unit make and carries a 22mm shaft diameter, 13mm pivot hole diameter and 1/2 UNC adjusting hole diameter. Those measurements matter on rotating electrical parts, because the alternator can look similar externally while still differing in mounting and shaft dimensions.

OEX states its products are sourced from market leading 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, which gives a clear service context for the part number DXA9122.

Key Features

• 24V alternator rated at 100A
• Delco 33SI style
• New unit
• Internal regulator
• Twin leg alternator mount
• Part number DXA9122

Specifications

• Brand: OEX
• Product type: Alternator
• Part number: DXA9122
• Series: 33SI
• Suits unit make: Delco
• Voltage: 24V
• Amperage: 100A
• New / Reman: New

Verified fitment applications supplied

• Atlas Copco Hurricane 6T 276-41B
• Atlas Copco Hurricane B641
• Atlas Copco MT2010
• Atlas Copco MT42
• Atlas Copco MT431B
• Atlas Copco MT436B
• Atlas Copco MT436LP
• Atlas Copco MT5020

Application and Buying Notes

Before ordering, confirm the part number DXA9122 and compare the mounting pattern, because this alternator uses 101mm inside mounting legs and 198mm mount centre-to-centre. Those dimensions need to match the machine’s bracket setup, otherwise a 24V 100A unit can still be the wrong physical fit.

Check the shaft and hole sizes against the removed alternator or the machine’s parts listing. The shaft is 22mm, the pivot hole is 13mm and the adjusting hole is 1/2 UNC, which are the key checkpoints for fit on Delco 33SI style applications.

The regulator is internal and the note records the unit as brushless. That makes the electrical design important to verify alongside the mounting style, especially where the original alternator was specified as a Delco 33SI type or the equipment maker lists the exact alternator arrangement.

This is a new alternator, not a remanufactured unit, and it weighs 13.1kg. If weight, casing layout or pulley alignment matter in your application, compare the removed part carefully before fitting, particularly on industrial and machine applications such as Atlas Copco, Bertram, Case IH and Caterpillar where several alternator variations can exist.

The listed warranty is 3 years for passenger use and 1 year for commercial use. Warranty terms do not replace fitment checking, so the safest approach is to use the part number DXA9122 together with the mounting and shaft measurements before you place the order.

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 DXA9122 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 33SI, Suits Unit Make Delco, Note Brushless, Mount Cnt to Cnt 198mm, Shaft Dimension 22.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA9122, Brand OEX, Description OEX Alternator 24V 100A Delco 33SI Style, Adjusting Hole Diameter 1/2 UNC, Pivot Hole Diameter 13, Regulator Type Internal, Shaft Diameter 22mm, Voltage 24.

OEX Alternator 24V 100A Delco 33SI Style. Part number DXA9122 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 Twin 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 DXA9122, 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 ATLAS COPCO HURRICANE 6T 276-41B, ATLAS COPCO HURRICANE B641, ATLAS COPCO MT2010, ATLAS COPCO MT42, BERTRAM 570, BERTRAM 670. 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 with part number DXA9122, the Delco 33SI style listing, and the recorded measurements: 24V, 100A, 198mm mount centre-to-centre, 101mm inside mounting legs, 22mm shaft diameter, 13mm pivot hole diameter and 1/2 UNC adjusting hole diameter. Always compare against the removed unit or equipment parts listing before purchase.

FAQ

What is the part number for this alternator?

The part number is DXA9122.

What voltage and output does this alternator have?

It is listed as 24V and 100A.

Is this a new or remanufactured alternator?

This is a new unit.

What mounting details are listed?

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

What shaft and hole dimensions are listed?

The shaft diameter is 22mm, the pivot hole diameter is 13mm and the adjusting hole diameter is 1/2 UNC.

What warranty is listed?

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