OEX Alternator 12V 90A Mitsubishi Style MXA2078

The OEX Alternator MXA2078 is a new 12V, 90 amp alternator in Mitsubishi style, supplied as each unit and identified with OEM number A3TG5381. It is a rotating electrical component with an internal regulator, a 7 groove pulley, and a twin leg alternator mount, so the mounting layout and pulley arrangement are key points to confirm before ordering.

This alternator is listed with an 81mm inside mounting leg measurement, 162mm mount centres, a 10.5mm adjusting hole diameter, and a pivot hole diameter of 10.5 / M10 x 1.25. Those measurements matter when comparing it against the removed unit, especially where the alternator bracket and pivot hardware must align exactly.

Power output is rated at 90 amps at 12 volts, which makes it important to match the charging requirements of the vehicle and the original alternator specification rather than relying on appearance alone. The pulley outside diameter is 65mm, and the pin code is IR203, both of which are useful identifiers when checking replacement compatibility.

Key Features

• New alternator
• 12V 90A output
• Mitsubishi style
• Internal regulator
• 7 groove pulley
• Twin leg mount

Specifications

• Voltage: 12V
• Power rating: 90 amp
• Regulator type: Internal
• Pulley section: 7 groove
• Pulley outside diameter: 65mm
• Inside mounting legs: 81mm
• Mount centres A: 162mm
• Adjusting hole diameter: 10.5mm

Fitment guidance

• NISSAN: NV350, NV350 / CARAVAN, NV350 / CARAVAN 2012, NV350 2012

Application and Buying Notes

Before ordering, compare the part number MXA2078 and OEM number A3TG5381 with the alternator being replaced. Matching these identifiers is one of the most reliable checks when selecting a replacement alternator, especially where the vehicle may have more than one charging system option.

The mounting layout should be checked carefully. This unit is a twin leg alternator with 81mm inside mounting legs, 162mm mount centres, a 10.5mm adjusting hole, and a pivot hole listed as 10.5 / M10 x 1.25. If the bracket spacing or bolt hardware differs from the original unit, the alternator may not install correctly even if it looks similar.

The pulley details also need confirmation. This alternator uses a 7 groove pulley with a 65mm outside diameter, so belt alignment and pulley style should be checked against the vehicle’s original setup. Using the correct pulley section is important for belt tracking and drive compatibility.

The electrical specification is 12 volts and 90 amps with an internal regulator. That makes this alternator suitable only where the original unit matches those basic charging specifications. If the vehicle’s existing alternator differs in voltage, output rating, regulator type, or plug arrangement, the replacement should be checked carefully before purchase.

The pin code is IR203, which is another useful identifier when comparing the vehicle’s alternator, plug style, or application details. For best results, confirm the removed unit’s tag, mounting points, pulley section, and connector details before fitting, rather than assuming a Mitsubishi style alternator will suit every application that looks similar.

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 MXA2078 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 81mm, Pin Code IR203, Power Rating (Amp) 90, Pulley Section 7 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg, OEM Number A3TG5381.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. MXA2078, Brand OEX, Description OEX Alternator 12V 90A Mitsubishi Style, Adjusting Hole Diameter 10.5, Mount Centres A 162mm, Pivot Hole Diameter 10.5 / M10 x 1.25, Pulley Outside Diameter 65mm, Regulator Type Internal, Voltage 12.

OEX Alternator 12V 90A Mitsubishi Style. Part number MXA2078 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 MXA2078, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include NISSAN NV350, NISSAN NV350 / CARAVAN, NISSAN NV350 / CARAVAN 2012, NISSAN NV350 2012. 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 compatibility using the part number MXA2078, OEM number A3TG5381, the 12V 90A specification, the IR203 pin code, and the mounting and pulley measurements before ordering. If any of those details differ from the removed alternator or the vehicle application, recheck fitment carefully.

FAQ

What is the part number for this alternator?

The part number is MXA2078. The listed OEM number is A3TG5381.

What are the main electrical specifications?

This alternator is rated at 12 volts and 90 amps, and it uses an internal regulator.

What mounting style does it use?

It is listed as a twin leg alternator mount, with 81mm inside mounting legs and 162mm mount centres.

What pulley details should I check?

It has a 7 groove pulley with a 65mm outside diameter. Matching the pulley section and size to the original unit is important for belt fitment and alignment.

Is this a new or remanufactured alternator?

It is listed as new.

What warranty is listed for this alternator?

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