OEX Alternator 12V 80A Hitachi Style HXA027

The OEX Alternator HXA027 is a 12V, 80A unit built in a Hitachi style configuration for rotating electrical applications. It is a new alternator, sold as each, with an external regulator type, twin leg alternator mount, and a 50cc vacuum pump option noted in the product details.

Key mounting and size details are provided for checking against the existing unit before ordering: 110mm inside mounting legs, 175mm mount centre to centre, 10mm pivot hole diameter, M8 x 1.25 adjusting hole diameter, 82mm pulley outside diameter, and a B section pulley. The shaft dimension is listed as 17, and the unit weighs 8kg.

OEX states that its products are sourced from Original Equipment Manufacturers and aftermarket suppliers, with factories operating to ISO9001 certified quality control procedures. The alternator is backed by a 3 year passenger / 1 year commercial warranty, which should be considered alongside the fitment checks and electrical requirements of the vehicle.

This alternator suits Hitachi unit make applications, but the product note also advises that for an internal regulated version, DXA518 is the relevant option. That makes it important to match both the mounting style and the regulator arrangement before purchase.

Key Features

• 12V alternator rated at 80A
• Hitachi style unit
• External regulator type
• Twin leg alternator mount
• New unit, supplied each
• 50cc vacuum pump option noted

Specifications

• Part No.: HXA027
• Brand: OEX
• Voltage: 12V
• Power Rating: 80A
• Suits Unit Make: Hitachi
• Mounting: Twin leg
• Inside Mounting Legs: 110mm
• Mount Centre to Centre: 175mm

Fitment guidance

• Fitment information is supplied against Hitachi-style applications.
• The listed fitment data includes DAIHATSU DELTA, DAIHATSU ROCKY, MITSUBISHI FUSO CANTER, NISSAN UTE, TOYOTA BLIZZARD, TOYOTA COASTER, TOYOTA DYNA, TOYOTA DYNA 200, TOYOTA HILUX, TOYOTA LAND CRUISER and TOYOTA TOYOACE.
• Years visible in the fitment data include DAIHATSU DELTA 1983 to 1993, MITSUBISHI FUSO CANTER 1996 to 2006, NISSAN UTE 1982 to 1984, and TOYOTA BLIZZARD and TOYOTA COASTER entries from the early 1980s.
• Because alternator fitment can vary by mounting, pulley and regulator arrangement, confirm the part number HXA027 and compare the dimensions before ordering.

Application and Buying Notes

Before ordering, compare your existing alternator against the key dimensions for HXA027: 110mm inside mounting legs, 175mm centre to centre, 10mm pivot hole, M8 x 1.25 adjusting hole, 82mm pulley outside diameter and a B section pulley. These measurements matter just as much as the 12V, 80A electrical rating when the alternator needs to bolt up correctly and align with the drive belt.

The regulator type is external, which is an important checkpoint if the vehicle currently uses a different regulation setup. The product note specifically states that for an internal regulated version, DXA518 should be used instead. Matching regulator type helps avoid ordering an alternator that looks similar but is not set up the same way.

The product is described as a Hitachi style alternator and suits Hitachi unit make applications. That does not replace a direct comparison of the part number HXA027, the mounting style, and the pulley specification. If the old unit has a different pulley section, shaft size, or mount spacing, it should be checked carefully before installation.

For commercial use, the warranty is listed as 1 year, while passenger use is listed as 3 years. The alternator is new and weighs 8kg, so it is worth confirming the mounting points and handling the unit carefully during test fitting and installation.

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 HXA027 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 110mm, Pivot Hole Diameter 10, Pulley Outside Diameter 82mm, Regulator Type External, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Weight 8kg, Product Group 1 ROTATING ELECTRICAL, Part No. HXA027, Brand OEX, Description OEX Alternator 12V 80A Hitachi Style, Adjusting Hole Diameter M8 x 1.25, Pin Code ER1, Power Rating (Amp) 80, Pulley Section B, Suits Unit Make Hitachi.

OEX Alternator 12V 80A Hitachi Style. Part number HXA027 should be checked first. Listed voltage is 12. Listed output rating is 80. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is External. 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 HXA027, 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 80 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number HXA027, the external regulator arrangement, and the listed mounting and pulley measurements against the removed unit before purchase.

FAQ

What is the part number for this alternator?

The part number is HXA027.

Is this alternator 12V or 24V?

It is a 12V alternator.

What is the charging output rating?

The power rating is 80A.

Does this unit use an external or internal regulator?

It uses an external regulator. The note also says to use DXA518 for the internal regulated version.

What mounting details are provided for checking fitment?

The listed mounting details are twin leg mount, 110mm inside mounting legs, 175mm mount centre to centre, 10mm pivot hole diameter, and M8 x 1.25 adjusting hole diameter.

What warranty applies to this alternator?

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