OEX Alternator 12V 110A Hitachi Style HXA059

The OEX Alternator HXA059 is a new 12V, 110A alternator built in Hitachi style for applications that use a Hitachi unit and an internal regulator. It is supplied as an each item and uses a twin leg alternator mount, with 84mm inside mounting legs and a 158mm mount centre to centre.

Key physical details include a 63mm pulley outside diameter, a 6 groove pulley section, a 10mm pivot hole diameter, and an M8x1.25 adjusting hole. The unit weighs 5.9kg and has an internal sense S terminal, so the electrical and mounting details should be checked carefully against the original unit before ordering.

OEX states that its products are sourced from market leading Original Equipment Manufacturers and aftermarket suppliers, and that production comes from ISO9001 certified factories with engineering, testing and quality control procedures in place. This alternator is backed by a 3 year passenger and 1 year commercial warranty, which may be relevant when comparing it with a repair or replacement plan for the vehicle.

Key Features

• New alternator, not remanufactured
• 12V output with 110A power rating
• Hitachi style unit
• Internal regulator type
• Twin leg alternator mount
• 6 groove pulley section

Specifications

• Brand: OEX
• Part number: HXA059
• Product type: Alternator
• Voltage: 12V
• Amperage: 110A
• Unit of measure: Each
• New / reman.: New
• Suits unit make: Hitachi

Verified fitment applications

• Infiniti Q45
• Nissan 350Z
• Nissan Cedric
• Nissan Elgrand
• Nissan Gloria
• Nissan Maxima / Maxima QX
• Nissan Murano
• Nissan Pathfinder

Application and Buying Notes

This alternator should be matched to the original unit by part number, mounting style and electrical setup before purchase. The important checkpoints on this listing are HXA059, Hitachi style, 12V, 110A, internal regulator, twin leg mount, and the internal sense S terminal. If the old alternator differs in any of these areas, it is not safe to assume interchangeability.

Measure the mounting points on the vehicle or compare the removed alternator carefully. The listed dimensions are 84mm inside mounting legs, 158mm mount centre to centre, a 10mm pivot hole, and an M8x1.25 adjusting hole. The pulley is 63mm outside diameter with a 6 groove section, so belt alignment and groove count must also be checked against the existing drive setup.

Fitment data is listed for several Infiniti and Nissan applications, including Q45, 350Z, Cedric, Elgrand, Gloria, Maxima / Maxima QX, Murano, Pathfinder, Skyline and Stagea. Even with that application range, final confirmation should still be made against the vehicle’s build details, the removed unit, and the physical dimensions shown here.

Because this is a new alternator with a 110A rating, it is sensible to confirm that the charging system requirements of the vehicle match the replacement unit. Weight is listed at 5.9kg, which can also be useful when comparing similar alternators that look alike but differ in internal construction or pulley arrangement.

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 HXA059 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 84mm, Pivot Hole Diameter 10, Pulley Outside Diameter 63mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. HXA059, Brand OEX, Description OEX Alternator 12V 110A Hitachi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR31, Power Rating (Amp) 110, Pulley Section 6 Groove, Suits Unit Make Hitachi.

OEX Alternator 12V 110A Hitachi Style. Part number HXA059 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 HXA059, 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.

Available application references include INFINITI Q45, INFINITI Q45 1993, INFINITI Q45 1994, INFINITI Q45 1995, NISSAN 350Z, NISSAN 350Z 2003. 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 HXA059, the Hitachi style designation, the 12V/110A specification, and the stated mounting and pulley measurements before ordering. If the original alternator differs in regulator type, sense terminal arrangement, mount spacing, or pulley profile, do not rely on appearance alone.

FAQ

What is the part number for this alternator?

The part number is HXA059.

Is this alternator new or remanufactured?

It is listed as new, not remanufactured.

What voltage and output does it have?

It is a 12V alternator with a 110A power rating.

What type of regulator does it use?

It uses an internal regulator and has an internal sense S terminal.

What mounting and pulley details are listed?

The unit has a twin leg mount, 84mm inside mounting legs, 158mm mount centre to centre, a 10mm pivot hole, an M8x1.25 adjusting hole, a 63mm pulley outside diameter, and a 6 groove pulley section.

Which vehicles are listed as fitment examples?

Verified fitment applications include Infiniti Q45 and several Nissan applications such as 350Z, Cedric, Elgrand, Gloria, Maxima / Maxima QX, Murano, Pathfinder, Skyline and Stagea. Final fitment should still be confirmed against the part number and the removed unit.