Mitsubishi Alternator 24V 50A A4TU9286AMA

The Mitsubishi Alternator 24V 50A, part number A4TU9286AMA, is a new rotating electrical unit supplied as each. It is designed for a 24-volt system with a 50 amp power rating and an internal regulator, which makes the core electrical specification clear before you compare it with the vehicle or machine you are working on.

This alternator uses a twin leg mount with 80mm inside mounting legs, a 12.5mm pivot hole diameter, and an M12 x 1.25 adjusting hole. The pulley outside diameter is 82mm with a BB pulley section, so matching the mounting and pulley details matters just as much as matching the voltage and amperage.

The unit weighs 9.26kg and is described as compact, with a small size/high output design, minimum number of parts, and low noise characteristics for wind and electromagnetic noise. It carries a 2 year / 400,000km warranty and is identified with pin code IR18.

Suits unit make is listed as Mitsubishi, and the fitment data also references a wide range of equipment and commercial applications, including Isuzu, Kato, Kobelco, Macks, Mercedes-Benz, Atlas Copco, Hitachi, Hidromek, Iseki, Sumitomo, UD Nissan Diesel, Mitsubishi Fuso, Mitsubishi Industrial, and Nissan Industrial applications. The exact match still needs to be confirmed against the part number and mounting details on the existing unit.

Key Features

• New alternator, supplied each
• 24 volt, 50 amp output
• Internal regulator
• Twin leg mount
• Small size/high output design
• Low noise operation

Specifications

• Brand: Mitsubishi
• Product type: Alternator
• Part No.: A4TU9286AMA
• Voltage: 24V
• Power rating: 50A
• Regulator type: Internal
• Alternator mount: Twin Leg
• Inside mounting legs: 80mm

Known application families listed for this alternator

• Atlas Copco ST1030
• Erf EC14
• Hidromek MG330
• Hitachi LX190-7A
• Hitachi LX230-7
• Iseki SX65
• Isuzu C/E Series
• Isuzu Elf

Application and Buying Notes

Before ordering, compare the part number A4TU9286AMA with the unit you are replacing. The alternator is a 24V, 50A Mitsubishi unit with an internal regulator, so a 12V system, a different amperage requirement, or a different regulator arrangement would not be a suitable substitute.

Mounting details are just as important as the electrical rating. This unit has a twin leg mount, 80mm inside mounting legs, a 12.5mm pivot hole, and an M12 x 1.25 adjusting hole, so the replacement needs to line up with the existing brackets and hardware without forcing or modification.

Pulley style and size should also be checked carefully. The listed pulley outside diameter is 82mm with a BB section, which needs to suit the belt arrangement on the machine or truck. If the original alternator uses different pulley dimensions or belt section, the match may not be correct even if the voltage and amperage appear similar.

The application list is broad and includes commercial trucks, industrial machines, forklifts, and earthmoving equipment families, but model names alone are not enough to confirm fitment. The safest approach is to verify the existing alternator, measure the mounting points, and compare the pulley and regulator details before committing to the part.

Weight is listed at 9.26kg, which can be a useful reference when comparing the replacement against the removed unit. If the existing alternator differs noticeably in size, mounting arrangement, or pulley profile, pause and confirm the application rather than relying on a model name 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 A4TU9286AMA 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, Inside Mounting Legs 80mm, Pivot Hole Diameter 12.5, Pulley Outside Diameter 82mm, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 190mm, Weight 9.26kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. A4TU9286AMA, Brand MITSUBISHI, Description Mitsubishi Alternator 24V 50A, Adjusting Hole Diameter M12 x 1.25, Pin Code IR18, Power Rating (Amp) 50, Pulley Section BB, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg.

Mitsubishi Alternator 24V 50A. Part number A4TU9286AMA should be checked first. Listed voltage is 24. Listed output rating is 50. 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 BB. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number A4TU9286AMA, 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 50 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching part number A4TU9286AMA, the 24V/50A electrical specification, twin leg mounting, 80mm inside mounting legs, 12.5mm pivot hole, M12 x 1.25 adjusting hole, and 82mm BB pulley details against the unit being replaced.

FAQ

Is this alternator new or remanufactured?

It is listed as new.

What is the voltage and output rating?

The alternator is rated at 24V and 50A.

Does it have an internal regulator?

Yes. The regulator type is listed as internal.

What is the part number?

The listed part number is A4TU9286AMA.

What mounting details are supplied?

It has a twin leg mount, 80mm inside mounting legs, a 12.5mm pivot hole, and an M12 x 1.25 adjusting hole.

What warranty is listed?

The warranty listed is 2 years or 400,000km.