OEX Alternator 12V 105A Delco Style DXA505

The OEX Alternator DXA505 is a 12V, 105A alternator built in a Delco style and supplied as a new unit, not remanufactured. It uses an internal regulator, a single leg alternator mount, and a 6 groove pulley section, so it is important to compare the mounting and drive details against the unit being replaced before ordering.

This alternator is listed with a mount leg thickness of 51mm, a pivot hole diameter of 10mm, an adjusting hole diameter of M8x1.25, and a mount centre to centre measurement of 134mm. Those dimensions matter when you are checking whether the physical mounting points line up with the vehicle’s existing setup.

OEX identifies this unit as suit unit make Delco, and the note states it may require HXK27. As with any charging system component, the correct part is the one that matches the electrical specification and the physical mounting arrangement, so the part number DXA505 and the listed measurements should be checked carefully before purchase.

Backed by a 3 year passenger warranty and 1 year commercial warranty, this alternator is aimed at buyers who want a replacement with defined specifications rather than a general-purpose universal unit. The weight is listed at 4.92kg, which can also be useful when comparing against the removed component.

Key Features

• 12V alternator rated at 105A
• Delco style unit
• Internal regulator
• Single leg alternator mount
• New unit, not remanufactured
• 6 groove pulley section

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: DXA505
• Voltage: 12V
• Power rating: 105A
• Unit of measure: Each
• Regulator type: Internal
• Alternator mount: Single leg

Application and Buying Notes

Before ordering, compare the alternator you are replacing with the DXA505 dimensions: 12V system voltage, 105A output, 6 groove pulley, single leg mount, 51mm mount leg thickness, 10mm pivot hole diameter, M8x1.25 adjusting hole, and 134mm mount centre to centre. These are the practical checkpoints that determine whether the unit physically suits the application.

The listing identifies this alternator as Delco style and suits unit make Delco, but no vehicle model list is supplied here. That means the safest way to confirm compatibility is by matching the removed unit’s part number, mounting layout, pulley arrangement, and regulator type rather than relying on description alone.

The note that it may require HXK27 should be treated as a fitment check, not an assumption. If your vehicle uses an additional bracket, spacer, or hardware arrangement, confirm whether that item is needed before fitting so you are not left with an incomplete installation.

This is a new alternator with an internal regulator, so it is intended as a direct replacement only where those specifications line up with the vehicle’s charging system and bracket setup. The 4.92kg weight and the 56mm pulley outside diameter can also be useful cross-checks against the removed unit when comparing like for like.

OEX states that its factories are ISO9001 certified and that the brand is backed by a comprehensive warranty, but the most reliable buying decision still comes down to matching the physical and electrical details. If the existing alternator is damaged, taking a clear photo of the mounting ears, plug arrangement, pulley, and any spacers can help confirm the correct replacement before purchase.

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 DXA505 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, Mount Leg Thickness 51mm, Pivot Hole Diameter 10, Pulley Outside Diameter 56mm, Regulator Type Internal, Voltage 12, Alternator Mount Single Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. DXA505, Brand OEX, Description OEX Alternator 12V 105A Delco Style, Adjusting Hole Diameter M8x1.25, Pin Code IR24, Power Rating (Amp) 105, Pulley Section 6 Groove, Suits Unit Make Delco.

OEX Alternator 12V 105A Delco Style. Part number DXA505 should be checked first. Listed voltage is 12. Listed output rating is 105. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA505, 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 12 and output 105 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility using part number DXA505, the Delco style application, and the listed mounting and pulley measurements before ordering. If your removed unit or vehicle setup differs in any of those details, check carefully before fitting.

FAQ

What is the part number for this alternator?

The part number is DXA505.

What voltage and output does it have?

It is a 12V alternator with a 105A power rating.

Is this a new or remanufactured unit?

It is listed as new.

What type of regulator does it use?

It has an internal regulator.

What mounting and pulley details are listed?

It is a single leg alternator mount with a 51mm mount leg thickness, 10mm pivot hole diameter, M8x1.25 adjusting hole, 134mm mount centre to centre, and a 6 groove pulley section with a 56mm pulley outside diameter.

Does it come with a fitment list by vehicle model?

No vehicle model fitment list is supplied here. Compatibility should be confirmed against DXA505, the Delco style application, and the listed measurements before ordering.