OEX Alternator 12V 110A Hitachi Style HXA085

The OEX Alternator HXA085 is a 12V, 110A unit in Hitachi style, supplied as a new alternator for rotating electrical applications. It uses an internal regulator, a 6 groove pulley, and a twin leg alternator mount, which are all important details when matching the unit to the vehicle it is intended for.

Key physical measurements for this alternator include 58mm inside mounting legs, a 156mm mount centre to centre measurement, M10x1.25 pivot hole diameter, 10mm adjusting hole diameter, a 52.5mm pulley outside diameter, and a 17mm shaft dimension. Those dimensions matter when checking mounting alignment and drive pulley compatibility before purchase.

OEX states that its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, with factories that are ISO9001 certified to support engineering, testing, and quality control procedures. This alternator is backed by a 3 year passenger / 1 year commercial warranty, which gives added confidence when selecting a replacement rotating electrical part.

Key Features

• 12V alternator with 110A power rating
• Hitachi style unit
• Internal regulator
• New unit, supplied each
• 6 groove pulley
• Twin leg alternator mount

Specifications

• Voltage: 12V
• Power rating: 110A
• Part No.: HXA085
• Suits unit make: Hitachi
• Regulator type: Internal
• Pulley section: 6 groove
• Alternator mount: Twin leg
• Inside mounting legs: 58mm

Vehicle compatibility checks

• Fitment information supplied includes Nissan Elgrand, Nissan Primera, Nissan X-Trail, and Renault Koleos applications.
• Supported application references include Nissan Elgrand 2010, Nissan Primera 2002, Nissan X-Trail 2001 to 2007, and Renault Koleos 2008 to 2016.
• Use the part number HXA085 and the listed mounting and pulley measurements to confirm the correct replacement before ordering.

Application and Buying Notes

Before buying, compare the part number HXA085, the Hitachi style designation, and the 12V 110A rating with the unit already fitted to the vehicle. Alternators can look similar from the outside, but differences in mount style, pulley section, regulator type, and shaft dimensions can stop a direct swap.

The listed twin leg mount, 58mm inside mounting legs, and 156mm mount centre to centre are the most useful installation checks for this alternator. If the mounting brackets on the vehicle do not match those measurements, the unit may not sit correctly, even if the electrical rating appears suitable.

Pulley details also need attention. This alternator has a 6 groove pulley with a 52.5mm outside diameter, so the belt system on the vehicle needs to match that arrangement. The internal regulator is another key point to confirm, particularly where the replacement is being selected for an existing Hitachi-style unit.

If the original alternator has been removed, use the old unit, the vehicle application, and the mounting measurements together rather than relying on appearance alone. The 17mm shaft dimension, M10x1.25 pivot hole, and 10mm adjusting hole are practical reference points when checking whether the replacement will line up as expected.

For commercial use, keep in mind that the warranty is listed as 1 year commercial, while passenger use is covered for 3 years. That warranty difference is worth considering where the vehicle is used regularly or under heavier loading, especially on applications where alternator demand is consistently high.

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 HXA085 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 58mm, Pivot Hole Diameter M10x1.25 / 10, Pulley Outside Diameter 52.5mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 156mm, Shaft Dimension 17.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. HXA085, Brand OEX, Description OEX Alternator 12V 110A Hitachi Style, Adjusting Hole Diameter 10, Pin Code IR49, Power Rating (Amp) 110, Pulley Section 6 Groove, Suits Unit Make Hitachi.

OEX Alternator 12V 110A Hitachi Style. Part number HXA085 should be checked first. Listed voltage is 12. Listed output rating is 110. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number HXA085, 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 110 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment using part number HXA085, the 12V 110A specification, the Hitachi style application, and the listed mounting and pulley measurements before purchase. Vehicle listings provided include Nissan Elgrand, Nissan Primera, Nissan X-Trail, and Renault Koleos applications, but final compatibility should always be checked against the vehicle’s existing unit and mounting points.

FAQ

What is the part number for this alternator?

The part number is HXA085.

Is this alternator new or remanufactured?

It is listed as new.

What are the main electrical specifications?

It is a 12V alternator with a 110A power rating and an internal regulator.

What pulley type does this alternator use?

It uses a 6 groove pulley with a 52.5mm outside diameter.

Which vehicle applications are provided?

Applications supplied include Nissan Elgrand, Nissan Primera, Nissan X-Trail, and Renault Koleos, with examples covering Nissan Elgrand 2010, Nissan Primera 2002, Nissan X-Trail 2001 to 2007, and Renault Koleos 2008 to 2016.

What warranty applies to this OEX alternator?

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