Mitsubishi Alternator 24V 90A A4TA8494AMA

The Mitsubishi Alternator 24V 90A is a new rotating electrical unit supplied as each, with part number A4TA8494AMA. It is a 24-volt alternator rated at 90 amps, so it suits applications that require the higher charging voltage used on compatible commercial and heavy-duty systems.

This unit uses an internal regulator and a 6 groove pulley, with a pulley outside diameter of 62 mm. The alternator mount is a single leg type, with mount leg thickness of 58 mm, pivot hole diameter of 10.5 mm, mount centre to centre of 173 mm, and an adjusting hole diameter of M8 x 1.25.

Mitsubishi lists this alternator as low noise, with small size/high output and a minimum number of parts. It weighs 7.06 kg and is covered by a 2 years / 400,000 km warranty, which gives buyers a clear reference point when comparing replacement options for 24V charging systems.

Key Features

• 24V, 90A alternator
• New unit
• Internal regulator
• 6 groove pulley
• Single leg mount
• Low noise design

Specifications

• Part No.: A4TA8494AMA
• Brand: Mitsubishi
• Voltage: 24V
• Power rating: 90A
• Regulator type: Internal
• Pulley outside diameter: 62 mm
• Pulley section: 6 groove
• Alternator mount: Single leg

Verified fitment notes

• Suits unit make: Mitsubishi
• Fitment data provided includes Astra applications
• Fitment data provided includes Case applications
• Fitment data provided includes Iveco applications
• Listed application groups include Astra ADT25C, ADT30C, ADT35C, ADT40C, RD28C and RD32C
• Listed application groups include Case 335B and 340B
• Listed application groups include Iveco Eurocargo, Eurorider, Eurotech MP, Powerstar, Stralis and Trakker

Application and Buying Notes

Before ordering, compare the part number A4TA8494AMA with the unit being replaced, then check the mounting style and pulley details. This alternator is a 24V, 90A unit with a single leg mount, 58 mm mount leg thickness, 10.5 mm pivot hole, 173 mm mount centre to centre, and an M8 x 1.25 adjusting hole.

The pulley is 6 groove with a 62 mm outside diameter, so belt alignment and pulley section need to match the vehicle setup. The internal regulator is also an important check point, because electrical control style must suit the application already fitted to the vehicle.

The listed fitment data covers some Astra, Case and Iveco applications, but those groups contain multiple models and year ranges. Matching by vehicle make alone is not enough; confirm the application details and compare the old unit against the specifications above before purchase.

At 7.06 kg, this is a substantial component intended for 24V systems. If the existing alternator has been changed previously, the most reliable guide remains the part number, physical mounting dimensions, and pulley configuration rather than the vehicle badge 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 A4TA8494AMA 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 2 Years 400,000km, Mount Leg Thickness 58mm, Pivot Hole Diameter 10.5, Pulley Outside Diameter 62mm, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 173mm, Weight 7.06kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. A4TA8494AMA, Brand MITSUBISHI, Description Mitsubishi Alternator 24V 90A, Adjusting Hole Diameter M8 x 1.25, Pin Code IR11, Power Rating (Amp) 90, Pulley Section 6 Groove, Suits Unit Make Mitsubishi, Alternator Mount Single Leg.

Mitsubishi Alternator 24V 90A. Part number A4TA8494AMA should be checked first. Listed voltage is 24. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single 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 A4TA8494AMA, 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 24 and output 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number A4TA8494AMA, the 24V 90A rating, single leg mount dimensions, and 6 groove pulley details against the existing alternator and application data before ordering.

FAQ

Is this alternator new or remanufactured?

This Mitsubishi alternator is listed as new. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.

What voltage and output rating does it have?

It is a 24V alternator with a 90A power rating. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.

What pulley does it use?

It has a 6 groove pulley with a 62 mm outside diameter. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.

What are the main mounting measurements?

The mounting details listed are single leg mount, 58 mm mount leg thickness, 10.5 mm pivot hole diameter, 173 mm mount centre to centre, and M8 x 1.25 adjusting hole diameter. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.

What warranty is listed?

The listed warranty is 2 years or 400,000 km. For this listing, part number A4TA8494AMA is the main reference point. Listed voltage is 24. Listed output rating is 90. Published fitment references include ASTRA ADT25C, ASTRA ADT25C 2008, ASTRA ADT25C 2009. These details should still be checked against the original unit before ordering.