Mitsubishi Alternator 12V 120A 1800A141

This Mitsubishi alternator is a 12V, 120A unit with part number 1800A141 and OEM number A2TG2181. It is listed as a new alternator and uses an internal regulator, which are important checks when matching a replacement charging component for the correct application.

It is a pad-mount alternator with a 6 groove pulley and a 60mm pulley outside diameter. Those mounting and pulley details matter just as much as the electrical rating, because the alternator must physically align with the belt drive and mounting arrangement already fitted to the vehicle.

The unit is identified as OE product and carries a 2 Years 400,000km warranty. For buyers comparing replacement options, the key identifiers here are the 12V system, 120 amp output, 1800A141 part number, and A2TG2181 OEM number.

Key Features

• 12V alternator with 120A output
• New unit
• Internal regulator
• 6 groove pulley
• 60mm pulley outside diameter
• Pad mount design

Specifications

• Brand: Mitsubishi
• Product type: Alternator
• Part No.: 1800A141
• OEM number: A2TG2181
• Voltage: 12V
• Power rating: 120A
• Regulator type: Internal
• Mount: Pad

Application and Buying Notes

Before ordering, confirm the part number 1800A141 and the OEM number A2TG2181 against the unit being replaced. Matching those identifiers is the safest way to check suitability when fitment data is not provided in the listing.

Also confirm the vehicle uses a 12V charging system and that the alternator mounting style is pad mount. A mismatch in mount type, pulley section, or pulley diameter can stop the unit from lining up correctly even when the electrical output looks similar on paper.

This alternator is rated at 120A and uses an internal regulator, so it should only be compared with units that share those core specifications. The 6 groove pulley and 60mm pulley outside diameter are practical verification points for belt alignment and drive compatibility.

If you are replacing a failed alternator, compare the old unit carefully for the pin code IR70 and the physical configuration. Small differences in connector style, mount style, or pulley setup can affect whether the part will install cleanly.

The warranty period is listed as 2 Years 400,000km, which is useful for buyers who want a long coverage period on a replacement charging component. As with any alternator purchase, the correct part number and application details remain the main checks before fitting.

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 1800A141 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, Power Rating (Amp) 120, Pulley Section 6 Groove, Suits Unit Make Mitsubishi, Alternator Mount Pad, OEM Number A2TG2181, Product Group 1 ROTATING ELECTRICAL, Part No. 1800A141.

Additional published details for cross-checking include Brand MITSUBISHI, Description Mitsubishi Alternator 12V 120A, Pin Code IR70, Pulley Outside Diameter 60mm, Regulator Type Internal, Voltage 12, New / Reman. New, Product Group 2 ALTERNATORS.

Mitsubishi Alternator 12V 120A. Part number 1800A141 should be checked first. Listed voltage is 12. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. 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 1800A141, 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 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

Compatibility note: Confirm fitment using the part number 1800A141, OEM number A2TG2181, 12V system requirement, pad mount arrangement, 6 groove pulley, and 60mm pulley outside diameter before ordering.

FAQ

What is the part number for this alternator?

The part number is 1800A141. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What OEM number is listed for this alternator?

The OEM number listed is A2TG2181. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 120A power rating. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Does this alternator have an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What pulley details are specified?

It has a 6 groove pulley with a 60mm pulley outside diameter. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as new. For this listing, part number 1800A141 is the main reference point. Listed voltage is 12. Listed output rating is 120. These details should still be checked against the original unit before ordering.