OEX Alternator 12V 60A Hitachi Style HXA091

The OEX Alternator HXA091 is a new 12V, 60A alternator in Hitachi style, supplied as a twin leg mounting unit for rotating electrical applications. It is listed with an internal regulator, a B section pulley with 82mm outside diameter, and a 10mm pivot hole diameter, so the key mounting and drive details are clearly defined before purchase.

This alternator carries part number HXA091 and is identified as suitable for Hitachi unit make applications. Important physical dimensions include 85mm inside mounting legs, 166mm mount centre to centre, and an M8x1.25 adjusting hole diameter. Those measurements matter when matching the alternator to the bracket, pivot, and belt arrangement already on the vehicle.

OEX describes the product as new and backed by a 3 year passenger / 1 year commercial warranty. The unit weighs 8kg and is sold individually, which is useful when comparing replacement parts where both mounting style and electrical output need to line up correctly.

For buyers comparing alternators, the combination of 12V voltage, 60A output, twin leg mount, internal regulator, and Hitachi style construction gives a clear profile to work from. If any of those points differ from the original unit, the safest approach is to confirm the part number and mounting measurements before ordering.

Key Features

• 12V alternator with 60A output
• Hitachi style unit
• Internal regulator
• Twin leg alternator mount
• New unit, sold each
• B section pulley with 82mm outside diameter

Specifications

• Voltage: 12V
• Power rating: 60A
• Type: alternator
• Brand: OEX
• Part No.: HXA091
• Suits unit make: Hitachi
• Alternator mount: twin leg
• Inside mounting legs: 85mm

Fitment Guidance

• HOLDEN: RODEO, RODEO 2001, RODEO 2002, RODEO 2003, RODEO 2004, plus other listed applications

Application and Buying Notes

Before ordering, check the existing alternator against the core identifiers on this unit: part number HXA091, 12V voltage, 60A output, twin leg mounting, and internal regulator. Those details are the main compatibility checkpoints when replacing a charging system component, because the wrong regulator type or mounting layout can prevent a straightforward fit even if the alternator looks similar.

The mounting measurements are just as important as the electrical rating. This alternator lists 85mm inside mounting legs, 166mm mount centre to centre, a 10mm pivot hole diameter, and an M8x1.25 adjusting hole. If the bracket spacing, pivot hardware, or adjuster point on the vehicle does not match, the unit may not align correctly in the engine bay.

The pulley specification should also be checked carefully. This unit has an 82mm outside diameter pulley with a B section belt groove. If the belt profile or pulley size on the original alternator is different, belt alignment and drive compatibility can be affected. That is especially relevant when replacing a worn unit rather than upgrading or modifying the drive setup.

The listed application information points to Hitachi unit make compatibility, and the fitment preview references Holden Rodeo applications across 2001 to 2007. Even so, alternators are best confirmed by part number and physical comparison, because the same vehicle range can use more than one charging system configuration depending on engine, bracket, or electrical setup.

Weight is listed at 8kg, which can be useful as a rough comparison point when checking against the removed part. It is not a substitute for matching the mounting legs, pivot hole, and regulator type, but it can help confirm whether the replacement unit is broadly in the same class as the original alternator.

OEX notes that the product is sourced from market leading original equipment manufacturers and aftermarket suppliers, and that its products are sourced from ISO9001 certified factories. For a buyer, that supports the importance of replacing like for like: compare the existing alternator’s part number, mounting geometry, and drive pulley details before finalising 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 HXA091 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 85mm, Pivot Hole Diameter 10, Pulley Outside Diameter 82mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 166mm, Weight 8kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. HXA091, Brand OEX, Description OEX Alternator 12V 60A Hitachi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR49, Power Rating (Amp) 60, Pulley Section B, Suits Unit Make Hitachi, Alternator Mount Twin Leg.

OEX Alternator 12V 60A Hitachi Style. Part number HXA091 should be checked first. Listed voltage is 12. Listed output rating is 60. 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.

Compatibility note: Confirm fitment by matching part number HXA091, 12V/60A rating, Hitachi style application, twin leg mount, regulator type, and the listed mounting and pulley measurements against the vehicle’s existing alternator.

FAQ

What is the part number for this alternator?

The part number is HXA091.

Is this alternator 12V?

Yes. The listed voltage is 12V.

What is the charging output?

The alternator is rated at 60A.

Does it use an internal regulator?

Yes. The regulator type is internal.

What mounting style does it use?

It is listed as a twin leg alternator mount with 85mm inside mounting legs and 166mm mount centre to centre.

What should I check before buying?

Match the part number HXA091, the 12V 60A specification, Hitachi style application, regulator type, and the listed mounting and pulley measurements against the existing alternator.