Mitsubishi Alternator 24V 50A New Heavy Comm A4TUF099AMA

This Mitsubishi alternator is a new heavy commercial unit rated at 24V and 50A, with part number A4TUF099AMA. It is listed as an OE product and uses an internal regulator, which makes it important to match the electrical system and mounting details before ordering.

The alternator is specified with a twin leg mount, 80mm inside mounting legs, a 190mm mount centre-to-centre measurement, and a 12mm pivot hole diameter. It also has an M12x1.25 adjusting hole, an 80mm pulley outside diameter, and a 12 groove pulley section.

For buyers replacing a unit in a heavy commercial or machinery application, the key checks are voltage, amperage, pulley style, and mounting dimensions. This listing is for a Mitsubishi unit under product group Rotating Electrical, and the details around the mount and pulley are the main compatibility points to verify.

The alternator is supplied as each, is new rather than remanufactured, and carries a 2 Years 400,000km warranty. If you are matching an existing unit, the part number A4TUF099AMA, the pin code IR47, and the 24V 50A rating are the most useful identifiers to compare first.

Key Features

• New Mitsubishi heavy commercial alternator
• OE product
• 24V output
• 50A power rating
• Internal regulator
• Twin leg mount

Specifications

• Brand: Mitsubishi
• Product type: Alternator heavy comm
• New / remanufactured: New
• Voltage: 24V
• Amperage: 50A
• Regulator type: Internal
• Alternator mount: Twin leg
• Inside mounting legs: 80mm

Fitment information

• Suits Mitsubishi units
• Fitment data supplied includes Caterpillar applications, including Caterpillar 320 model references from 1995 through 2005 in the provided preview
• Additional fitment tokens are listed for Caterpillar 321CLCR, 321D, 321DLCR, 323D, 323DSA and Caterpillar agricultural applications in the supplied fitment set

Application and Buying Notes

Before buying, compare the part number A4TUF099AMA with the unit already fitted to the machine or vehicle. On alternators like this one, the part number, 24V voltage, 50A output, and internal regulator type are the quickest checks to rule out an incorrect replacement.

Mounting measurements matter just as much as electrical rating. This unit is described with a twin leg mount, 80mm inside mounting legs, 190mm mount centre-to-centre, and a 12mm pivot hole, so the physical bracket arrangement must match your application before the unit will install correctly.

The pulley arrangement also needs attention. This alternator uses an 80mm outside diameter pulley with a 12 groove section, so the belt profile and pulley alignment should be checked against the existing setup. A mismatch here can stop the alternator from working properly even when the electrical specification is correct.

If you are replacing an existing Mitsubishi alternator, the pin code IR47 and the listed mounting dimensions are useful cross-checks. When the machine is a Caterpillar application, use the supplied application notes as a guide only and confirm the exact machine model, year, and mounting arrangement against the old unit or machine records.

Warranty coverage is listed at 2 Years 400,000km, but that does not replace the need to confirm fitment first. Alternators can share similar voltage and amperage ratings while differing in mount style, pulley section, or connector detail, so matching the physical and electrical details is the safest approach.

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 A4TUF099AMA 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 HEAVY COMM, Unit of Measure EACH, Warranty 2 Years 400,000km, Inside Mounting Legs 80mm, Pivot Hole Diameter 12, Pulley Outside Diameter 80mm, Regulator Type Internal, Voltage 24, Mount Cnt to Cnt 190mm.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. A4TUF099AMA, Brand MITSUBISHI, Description Mitsubishi Alternator 24V 50A, Adjusting Hole Diameter M12x1.25, Pin Code IR47, Power Rating (Amp) 50, Pulley Section 12 Groove, Suits Unit Make Mitsubishi, Alternator Mount Twin Leg.

Mitsubishi Alternator 24V 50A. Part number A4TUF099AMA 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 12 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number A4TUF099AMA, 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 heavy comm 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.

Available application references include CATERPILLAR 320, CATERPILLAR 320 1995, CATERPILLAR 320 1996, CATERPILLAR 320 1997. 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 fitment using part number A4TUF099AMA, 24V 50A rating, twin leg mount, 80mm inside mounting legs, 190mm mount centre-to-centre, 12mm pivot hole, M12x1.25 adjusting hole, and 12 groove pulley details before ordering.

FAQ

What is the part number for this alternator?

The part number listed is A4TUF099AMA.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and amperage does it have?

It is rated at 24V and 50A.

What type of regulator does it use?

It uses an internal regulator.

What mounting details are listed?

The alternator has a twin leg mount, 80mm inside mounting legs, 190mm mount centre-to-centre, and a 12mm pivot hole diameter, with an M12x1.25 adjusting hole.

What belt and pulley details are supplied?

It has an 80mm pulley outside diameter and a 12 groove pulley section.