OEX Alternator 12V 190A Hitachi Style HXA113

The OEX Alternator HXA113 is a new 12V, 190A unit built in Hitachi style for applications that call for a water cooled alternator with a 7 groove pulley. It suits a Hitachi unit make and is listed with a quad leg alternator mount, so matching the mounting style and pulley arrangement matters just as much as matching the electrical rating.

This alternator uses an inside mounting leg measurement of 61mm, a mount centre to centre measurement of 127mm, and M8x1.25 / 8 pivot and adjusting hole diameters. Those dimensions are the first checkpoints when comparing against a removed unit, especially where the original part has to line up exactly with the bracketry and belt drive.

It is rated at 12 volts and 190 amps, and the listed weight is 7.86kg. The combination of the current output, pulley section, and water cooled note makes this a specification-led replacement rather than a universal-fit part, so the part number HXA113 and the mounting details should be checked carefully before ordering.

Key Features

• New alternator, not remanufactured
• 12V output with 190A power rating
• Hitachi style unit
• Water cooled
• 7 groove pulley
• Quad leg alternator mount

Specifications

• Voltage: 12V
• Power rating: 190A
• Part No.: HXA113
• Brand: OEX
• Unit of measure: Each
• New / Reman.: New
• Suit unit make: Hitachi
• Alternator mount: Quad Leg

Verified fitment details

• Bentley Continental
• Bentley Continental 2003 to 2013
• Bentley Continental Flying Spur

Application and Buying Notes

Before ordering, compare the removed alternator against part number HXA113 and confirm the mounting setup matches the listed quad leg design, 61mm inside mounting legs, and 127mm centre to centre measurement. Those are the dimensions most likely to determine whether the unit will physically sit in the bracket correctly.

The pulley details also need to line up. This alternator is listed with a 56.5mm pulley outside diameter and a 7 groove pulley section, so the belt arrangement on the vehicle should be checked against the existing unit. A mismatch here can prevent correct belt tracking even if the alternator otherwise looks similar.

Because this is a 12V, 190A alternator, it should only be considered where the vehicle’s charging system calls for that output level. The water cooled note is also important, as cooling arrangement is a key compatibility point and should be matched to the original unit rather than assumed.

The listed fitment information includes Bentley Continental applications from 2003 through 2013, and Bentley Continental Flying Spur. Even so, fitment should still be confirmed against the exact vehicle application, the existing alternator, and the mounting dimensions before purchase, particularly on vehicles where multiple charging system variants may exist.

If you are replacing a failed alternator, it is usually best to compare the old unit side by side with the replacement before installation. Check the mounting ears, pivot and adjuster hole sizes, pulley groove count, and overall physical layout, then confirm the replacement matches the vehicle’s original specification rather than relying on appearance alone.

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 HXA113 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 61mm, Pivot Hole Diameter M8x1.25 / 8, Pulley Outside Diameter 56.5mm, Suits Unit Make Hitachi, Note Water Cooled, Mount Cnt to Cnt 127mm, Weight 7.86kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. HXA113, Brand OEX, Description OEX Alternator 12V 190A Hitachi Style, Adjusting Hole Diameter M8x1.25 / 8, Pin Code IR205, Power Rating (Amp) 190, Pulley Section 7 Groove, Voltage 12, Alternator Mount Quad Leg.

OEX Alternator 12V 190A Hitachi Style. Part number HXA113 should be checked first. Listed voltage is 12. Listed output rating is 190. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Quad Leg. Pulley configuration is 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number HXA113, 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 190 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include BENTLEY CONTINENTAL, BENTLEY CONTINENTAL 2003, BENTLEY CONTINENTAL 2004, BENTLEY CONTINENTAL 2005. 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: Please confirm fitment using part number HXA113, the 12V 190A specification, the Hitachi style/Hitachi unit make listing, and the stated mounting and pulley dimensions before ordering. If the removed unit does not match these details, do not assume compatibility.

FAQ

What is the part number for this alternator?

The part number is HXA113.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 12V alternator with a 190A power rating.

What pulley setup does it use?

It has a 7 groove pulley and a pulley outside diameter of 56.5mm.

What mounting details should be checked before buying?

Check the quad leg mount, 61mm inside mounting legs, 127mm mount centre to centre, and the M8x1.25 / 8 pivot and adjusting hole diameters.

What vehicles are listed in the fitment information?

The listed fitment includes Bentley Continental, Bentley Continental 2003 to 2013, and Bentley Continental Flying Spur. Final fitment should still be confirmed against the vehicle and the original alternator.