OEX Alternator 12V 90A Delco Style DXA9127

The OEX Alternator DXA9127 is a 12V, 90A unit built in a Delco style with a 10SI series profile and internal regulator. It is supplied new, weighs 5.6kg, and uses a single-leg alternator mount, so matching the physical layout matters as much as matching the electrical output.

Key dimensions include a 66mm pulley outside diameter, 51mm mount leg thickness, 166mm mount centre-to-centre, 10mm pivot hole diameter, 8mm adjusting hole diameter, and a 17 shaft dimension. Those measurements are useful when confirming interchange on Delco applications where bracket and pulley fitment must align correctly.

This alternator is listed under OEX part number DXA9127 and pin code IR227. OEX states that its products are sourced from Original Equipment Manufacturers and aftermarket suppliers, with ISO9001 certified factory sourcing and a nationwide warranty backing the range.

The unit is described as suitable for Delco applications, which makes the part number, series, mount style, and stated dimensions the safest points of comparison before ordering. Checking those details against the original alternator is the best way to avoid fitment issues on rotating electrical jobs.

Key Features

• 12V alternator with 90A output
• Delco style, 10SI series
• Internal regulator
• New unit, not remanufactured
• Single-leg alternator mount
• 66mm pulley outside diameter

Specifications

• Brand: OEX
• Product type: Alternator
• Voltage: 12V
• Power rating: 90A
• Series: 10SI
• Suits unit make: Delco
• Regulator type: Internal
• Alternator mount: Single leg

Fitment notes

• Supported fitment groups include Alfa Romeo, Allis Chalmers, Atlas Copco, Bobcat, Case, Chevrolet, Clark, Holden, Hyster, International, and International Harvester.
• Sample applications listed include Alfa Romeo Giulia, Allis Chalmers C100, C120, C60, C60D, Atlas Copco XAS175, Bobcat 443, 543, 611, 631, Case 1835B, 1835C, 1845B, Chevrolet C10, C20, C30, Camaro, Clark 825, Holden H Series, Holden Monaro, Hyster H-110XL, H-150, and International ACCO.
• Fitment should still be checked against the original alternator housing, mounting layout, pulley size, and regulator style before purchase.
• Some application families are broad, so the part number DXA9127 and the listed measurements are the most reliable match points.

Application and Buying Notes

Before buying, compare the old unit against the listed Delco style, 10SI series, 12V system, and 90A output. A replacement alternator can look similar and still differ in mount leg thickness, pulley size, or hole spacing, so the 51mm mount leg thickness and 166mm centre-to-centre dimension are worth checking carefully.

The internal regulator is an important detail if the vehicle originally uses an internally regulated alternator. If the original system uses a different regulator arrangement, the alternator may not be a direct swap even if the casing shape appears close.

The pulley is listed at 66mm outside diameter with an A section belt profile. That matters where belt alignment and belt type are critical, especially on older Delco-style applications where the original pulley may have been changed during previous repairs.

If you are matching by part number, DXA9127 and pin code IR227 should be checked against the vehicle record, old alternator label, and any service paperwork available. On mixed fleets or older vehicles, the safest approach is to verify the physical unit as well as the catalogue reference.

For workshop or commercial use, note the stated warranty difference: 3 years for passenger use and 1 year for commercial use. That does not replace fitment checking, but it does help when selecting the right replacement for the vehicle’s duty cycle.

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 DXA9127 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 66mm, Regulator Type Internal, Suits Unit Make Delco, Alternator Mount Single Leg, New / Reman. New.

Additional published details for cross-checking include Weight 5.6kg, Product Group 1 ROTATING ELECTRICAL, Part No. DXA9127, Brand OEX, Description OEX Alternator 12V 90A Delco Style, Adjusting Hole Diameter 8, Pin Code IR227, Power Rating (Amp) 90, Pulley Section A, Series 10SI.

OEX Alternator 12V 90A Delco Style. Part number DXA9127 should be checked first. Listed voltage is 12. Listed output rating is 90. 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 A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number DXA9127, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include ALFA ROMEO GIULIA, ALLIS CHALMERS C100, ALLIS CHALMERS C120, ALLIS CHALMERS C60, ALLIS CHALMERS C60D, ATLAS COPCO XAS175. 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.

Compatibility note: Confirm fitment by part number DXA9127, pin code IR227, Delco application details, and the physical measurements of the original alternator before ordering.

FAQ

What voltage and output does this alternator have?

It is a 12V alternator with a 90A power rating.

Is this a new or remanufactured unit?

This alternator is listed as new.

What regulator type does it use?

It has an internal regulator.

What mounting style does it use?

It uses a single-leg alternator mount.

What is the part number for this alternator?

The listed part number is DXA9127, with pin code IR227.

What warranty is stated for this product?

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