OEX Alternator 12V 50A Hitachi Style HXA006

The OEX Alternator HXA006 is a new 12V, 50 amp unit in Hitachi style, supplied as an alternator each. It uses an internal regulator, a twin leg alternator mount, and is listed with a 30cc vacuum pump note, so the mounting and accessory layout need to match the vehicle application before purchase.

Key dimensions are provided for checking against the existing unit: 80mm inside mounting legs, 169mm mount centre to centre, a 10mm pivot hole diameter, M8 x 1.25 adjusting hole, 82mm pulley outside diameter, 17 shaft dimension, and B section pulley. Those measurements matter when comparing the replacement to the original alternator already fitted.

This alternator is branded OEX, part number HXA006, and is identified as suitable for Hitachi applications. It is a new unit, weighs 6.6kg, and carries a 3 year passenger / 1 year commercial warranty, which gives a useful reference point for buyers comparing replacement cost, duty cycle, and installation confidence.

Key Features

• 12V alternator rated at 50 amps
• New unit with internal regulator
• Twin leg alternator mount
• Hitachi style replacement
• 30cc vacuum pump note
• B section pulley

Specifications

• Brand: OEX
• Product type: Alternator
• Part No.: HXA006
• Voltage: 12V
• Power rating: 50A
• New / remanufactured: New
• Regulator type: Internal
• Alternator mount: Twin leg

Known fitment applications

• Holden Gemini
• Holden Jackaroo / Monterey
• Holden Rodeo
• Isuzu 4JB1
• Isuzu ELF
• Isuzu Journey
• Isuzu MU
• Isuzu N

Application and Buying Notes

When replacing an alternator, the safest check is to compare the part number HXA006, the Hitachi style listing, and the physical mounting measurements before ordering. The 80mm inside mounting legs, 169mm mount centre to centre, 10mm pivot hole, and M8 x 1.25 adjusting hole are the main points to confirm against the removed unit.

The pulley details also matter. This alternator is listed with an 82mm outside diameter pulley and B section pulley profile, so belt alignment and belt section need to match the vehicle’s existing setup. If the pulley style or size differs from the original, the unit may not suit the application without the correct matching components.

The note for a 30cc vacuum pump and the adaptor to suit HXK-08 are important installation checks. If your vehicle uses a vacuum pump arrangement on the alternator, make sure the replacement matches that configuration rather than relying only on voltage and amperage. The alternator is internally regulated, so the charging system setup needs to suit an internally regulated unit.

This is a new 12V 50A alternator, not a remanufactured part. For buyers, that makes the unit type, regulation style, and electrical rating straightforward to verify, but the final fit still depends on the exact mounting style, shaft dimension of 17, and how the existing alternator is configured in the vehicle.

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 HXA006 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 80mm, Pivot Hole Diameter 10, Pulley Outside Diameter 82mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Weight 6.6kg, Product Group 1 ROTATING ELECTRICAL, Part No. HXA006, Brand OEX, Description OEX Alternator 12V 50A Hitachi Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR9, Power Rating (Amp) 50, Pulley Section B, Suits Unit Make Hitachi.

OEX Alternator 12V 50A Hitachi Style. Part number HXA006 should be checked first. Listed voltage is 12. Listed output rating is 50. 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 HXA006, 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 50 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include HOLDEN GEMINI, HOLDEN GEMINI 1981, HOLDEN GEMINI 1982, HOLDEN GEMINI 1983, ISUZU 4JB1, ISUZU 4JB1 1999. 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 using the part number HXA006, the Hitachi style application, and the listed mounting and pulley measurements before purchase. Vehicle coverage is provided as a guide only, and the final match depends on the exact alternator fitted to the vehicle or equipment.

FAQ

What is the part number for this alternator?

The part number is HXA006.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and amperage is it rated for?

It is a 12V alternator rated at 50 amps.

Does it have an internal regulator?

Yes. The regulator type is internal.

What vehicles or equipment are listed as known applications?

Listed applications include Holden Gemini, Holden Jackaroo / Monterey, Holden Rodeo, Isuzu 4JB1, Isuzu ELF, Isuzu Journey, Isuzu MU, Isuzu N, Nissan Patrol, Nissan Terrano, and TCM 820-2, FHD20, FHD25, and FHD30.

What should I check before ordering?

Check the part number HXA006, the Hitachi style match, the twin leg mount, the 80mm inside mounting legs, the 169mm mount centre to centre, the 82mm pulley outside diameter, and the B section pulley. The 30cc vacuum pump note and adaptor to suit HXK-08 should also be confirmed where relevant.