OEX Alternator 12V 90A Hitachi Style HXA198

The OEX Alternator HXA198 is a 12V, 90A passenger alternator built in Hitachi style form, supplied as a new unit and fitted with an internal regulator. It is listed with a twin leg mount, 80mm inside mounting legs, 170mm mount centre to centre, and a 60mm pulley outside diameter.

This alternator is specified with a 7 groove pulley and a clutch style pulley fitted. The note supplied with the unit says it will replace LR190-770*, but that this should be checked against the part number on the original unit before ordering. Battery terminal position also needs to be checked before fitment.

OEX lists this unit under part number HXA198 and OEM number HXA098. It is a 12 volt, 90 amp alternator in the rotating electrical group, and it weighs 5.34kg. The warranty listed is 3 years for passenger use and 1 year for commercial use.

Key Features

• 12V, 90A alternator
• Hitachi style unit
• New alternator, not remanufactured
• Internal regulator
• Twin leg mount
• 7 groove pulley

Specifications

• Voltage: 12V
• Power rating: 90A
• Regulator type: Internal
• Mount type: Twin leg
• Inside mounting legs: 80mm
• Mount centre to centre: 170mm
• Pivot hole diameter: 10mm
• Adjusting hole diameter: M8x1.25

Fitment guidance

• Fitment data provided includes Nissan applications, with Nissan Caravan shown in the preview list.
• The fitment preview also references Nissan Elgrand, Nissan Navara, and Nissan Patrol.
• Specific year coverage is not fully listed here, so confirm by part number and original unit details before ordering.
• The note states this option replaces LR190-770* only when matched to the original unit part number.
• Battery terminal position must be checked before fitment.

Application and Buying Notes

This alternator is a 12V, 90A OEX unit with an internal regulator, so it needs to be matched to the vehicle’s charging system and mounting arrangement as well as the part number. The key physical checks here are the twin leg mount, 80mm inside mounting legs, 170mm mount centre to centre, 10mm pivot hole, and M8x1.25 adjusting hole.

The pulley arrangement is equally important. This unit has a 60mm pulley outside diameter, a 7 groove pulley section, and the note confirms it is fitted with a clutch style pulley. If the original alternator uses a different pulley arrangement, the replacement may not be a direct match even when the unit looks similar.

The supplied note also says battery terminal position needs to be checked. That is a simple but important step, because terminal orientation affects how the wiring reaches and how the alternator sits in the engine bay. The unit is listed as a new alternator and weighs 5.34kg, which can also help when comparing it to the original unit on removal.

For buyers working from an original alternator, the best practice is to compare HXA198, OEM HXA098, the reference to LR190-770*, and the dimensions above against the old unit before fitting. This is especially relevant where the vehicle may have had more than one charging system option or where previous repairs have changed the alternator already.

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 HXA198 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 PASSENGER, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Inside Mounting Legs 80mm, Pivot Hole Diameter 10, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, Alternator Mount Twin Leg, New / Reman. New.

Additional published details for cross-checking include Weight 5.34kg, Product Group 1 ROTATING ELECTRICAL, Part No. HXA198, Brand OEX, Description OEX Alternator 12V 90A Hitachi Style, Adjusting Hole Diameter M8x1.25, Pin Code IR49, Power Rating (Amp) 90, Pulley Section 7 Groove, Suits Unit Make Hitachi.

OEX Alternator 12V 90A Hitachi Style. Part number HXA198 should be checked first. Listed voltage is 12. Listed output rating is 90. 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 7 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number HXA198, 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 passenger in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using the part number HXA198, the OEM number HXA098, the original unit reference LR190-770* where applicable, and the listed dimensions, pulley type, and battery terminal position before ordering.

FAQ

What is the part number for this alternator?

The listed OEX part number is HXA198. The OEM number shown is HXA098.

Is this alternator new or remanufactured?

It is listed as a new alternator, not a remanufactured unit.

What are the electrical specifications?

This alternator is 12V and rated at 90A. It also uses an internal regulator.

What pulley details should I check?

The unit has a 60mm pulley outside diameter, a 7 groove pulley section, and it is fitted with a clutch style pulley.

What mounting details are listed?

The mount type is twin leg, with 80mm inside mounting legs, 170mm mount centre to centre, a 10mm pivot hole, and an M8x1.25 adjusting hole.

How should I confirm it will suit my vehicle?

Compare HXA198 and HXA098 with the original alternator, check the note about LR190-770*, and confirm battery terminal position, pulley type, and the mounting dimensions before ordering.