OEX Alternator 24V 35A Hitachi Style HXA009

The OEX HXA009 is a new 24V alternator rated at 35A and built in a Hitachi style configuration. It is listed as a twin leg mount alternator with an internal regulator, making the key identification points voltage, amperage, mounting style, and part number easy to check before ordering.

Important dimensions on this unit include 81mm inside mounting legs, a 170mm mount centre-to-centre measurement, a 10mm pivot hole diameter, and an M8x1.25 adjusting hole. The pulley is 82mm outside diameter with a B section pulley profile, and the unit weighs 5.94kg.

This alternator suits Hitachi applications and is noted as having a 30cc vacuum pump with an adaptor to suit HXK-08. For buyers matching an existing charging unit, the part number HXA009 and the listed physical measurements are the most useful checkpoints alongside the 24V 35A electrical rating.

Key Features

• New alternator, not remanufactured
• 24V system with 35A output
• Internal regulator
• Twin leg alternator mount
• Hitachi style unit
• 30cc vacuum pump noted

Specifications

• Part No.: HXA009
• Brand: OEX
• Product type: Alternator
• Voltage: 24V
• Power rating: 35A
• New / Reman.: New
• Regulator type: Internal
• Alternator mount: Twin Leg

Fitment guidance

• Verified application groups include Hitachi, Case, Daedong, Dynapac, International, Isuzu, Kobelco, Komatsu, Link-Belt, Mitsubishi, New Holland, Nissan, Sany, Sumitomo, Takeuchi, TCM, UD Nissan Diesel and other listed industrial applications.
• Specific listed application examples include Hitachi LX70, Hitachi LX70-7 and Hitachi ZX110; Case CX135, CX135SR and CX225SR; Daedong DK551; Dynapac CP215; Kobelco SK135SR; New Holland E130; Sany SY135; Takeuchi TB1140; and TCM FHD20, FHD25 and FHD30.
• Additional listed groups include Isuzu ELF, Nissan Caravan, Sumitomo SH120-3 and SH125X-3, and UD Nissan Diesel PK Series.
• Where year ranges are provided, the fitment list includes multiple model-year entries for several applications, so the exact model and year should still be checked against the existing unit.

Application and Buying Notes

Before ordering, compare the existing alternator to the HXA009 using the 24V rating, 35A output, twin leg mount, and the 81mm inside mounting legs measurement. These are the core fitment checks on this unit and are more reliable than relying on appearance alone.

The pulley arrangement also matters. This alternator has an 82mm outside diameter pulley with a B section profile, so the belt setup needs to match the application. The unit also has a 10mm pivot hole and an M8x1.25 adjusting hole, which should be checked against the brackets on the vehicle or machine.

This alternator is listed as new and uses an internal regulator. That means the replacement should be matched to the charging system design already fitted, rather than assumed interchangeable with a different regulator type or mounting pattern.

The note for this unit mentions a 30cc vacuum pump and an adaptor to suit HXK-08. If the original alternator setup uses a vacuum pump arrangement, confirm that the pump, adaptor, and mounting details line up with the existing unit before purchase.

The listed applications cover a broad range of industrial and vehicle uses, including Hitachi, Isuzu, Nissan, Kobelco, and others. Even so, the safest way to buy is by confirming part number HXA009, the 24V 35A specification, and the physical dimensions against the unit being replaced.

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 HXA009 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 81mm, Pivot Hole Diameter 10, Pulley Outside Diameter 82mm, Regulator Type Internal, Voltage 24, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. HXA009, Brand OEX, Description OEX Alternator 24V 35A Hitachi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR9, Power Rating (Amp) 35, Pulley Section B, Suits Unit Make Hitachi.

OEX Alternator 24V 35A Hitachi Style. Part number HXA009 should be checked first. Listed voltage is 24. Listed output rating is 35. 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 B. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number HXA009, 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 35 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number HXA009, the 24V 35A rating, the twin leg mount, and all listed dimensions against the existing alternator and vehicle application before ordering.

FAQ

Is this alternator new or remanufactured?

This is listed as a new alternator, not a remanufactured unit.

What voltage and output does it have?

It is a 24V alternator with a 35A power rating.

What type of regulator does it use?

It uses an internal regulator.

What mounting details are listed?

The alternator is a twin leg mount with 81mm inside mounting legs, 170mm mount centre-to-centre, a 10mm pivot hole diameter, and an M8x1.25 adjusting hole.

What pulley details are listed?

The pulley outside diameter is 82mm and the pulley section is B.

What vehicles or equipment does it suit?

It is listed for Hitachi applications and also shows fitment groups that include Case, Daedong, Dynapac, International, Isuzu, Kobelco, Komatsu, Link-Belt, Mitsubishi, New Holland, Nissan, Sany, Sumitomo, Takeuchi, TCM and UD Nissan Diesel. The exact model and year should still be checked against the part number and dimensions.