Mahle Alternator 24V 120A MG273

The MAHLE MG273 is a heavy commercial alternator rated at 24V and 120A, supplied as a single unit (each). It is designed with a V-ribbed belt pulley and a W connector / clamp, so the key installation checks are the electrical system voltage, pulley style, and connector arrangement before purchase.

This alternator carries a one year warranty and is listed under rotating electrical and alternators. The mounting bores distance is 101.0, the mounting points diameter is 99.0, and the distance from the pulley to the alternator is 45.6, all of which are important dimensions when matching the unit to an application.

The part number is MG273 and the brand is MAHLE. If you are replacing an existing alternator in a 24V heavy commercial system, matching the part number, mounting geometry, and connector type is the safest way to reduce the chance of getting the wrong unit.

Key Features

• 24V heavy commercial alternator
• 120A charge current
• V-ribbed belt pulley
• W connector / clamp
• MAHLE part number MG273
• One year warranty

Specifications

• Brand: MAHLE
• Part No.: MG273
• Product type: Alternator Heavy Comm
• Voltage: 24
• Power rating: 120A
• Alternator charge current: 120A
• Pulley: with V-ribbed belt pulley
• Connector / clamp: W

Application and Buying Notes

Before ordering, confirm your existing alternator is a 24V unit and that the required charge current is 120A. Those two details are the starting point for compatibility, but they are not enough on their own if the mounting pattern or connector style differs from your current unit.

The MG273 uses a V-ribbed belt pulley and a W connector / clamp, so those details need to match the vehicle’s charging system layout. The mounting bores distance of 101.0 and mounting points diameter of 99.0 are especially useful when comparing the replacement against the original alternator or the removed sample.

The distance from the pulley to the alternator is 45.6, which can affect physical clearance in the engine bay and alignment with the drive belt system. If you are working from a sample unit, compare these dimensions carefully before fitting, particularly on heavy commercial applications where accessory drive layouts are tightly packaged.

This alternator is listed as suitable for rotating electrical applications and is sold as each. For best results, confirm the existing part number, the system voltage, the pulley profile, and the connector arrangement before purchasing. If any of those details are unclear, checking the original unit is better than relying on the vehicle 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 MG273 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 One Year, Voltage 24, Pulleys with V-ribbed belt pulley, Mounting Bores Distance 101.0, Distance from pulley to the alternator 45.6, Packaging width 23.00, Net Weight 8000, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. MG273, Brand MAHLE, Description Mahle Alternator 24V 120A, Power Rating (Amp) 120, Alternator Charge Current [A] 120, Connector / Clamp W, Mounting points diameter 99.0, Packaging length 30.5, Packaging height 20.50.

Mahle Alternator 24V 120A. Part number MG273 should be checked first. Listed voltage is 24. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number MG273, 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 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 by matching part number MG273, 24V system voltage, 120A output, V-ribbed belt pulley, W connector / clamp, and the listed mounting dimensions before ordering.

FAQ

What is the voltage of this alternator?

It is a 24V alternator. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What is the current rating?

The alternator is rated at 120A, and the alternator charge current is also listed as 120A. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What pulley type does it use?

It comes with a V-ribbed belt pulley. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is MG273. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.

Does it include a warranty?

Yes, it is listed with a one year warranty. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.

How should I check compatibility before buying?

Match the 24V system, 120A output, part number MG273, V-ribbed pulley, W connector / clamp, and the mounting dimensions of 101.0 bores distance, 99.0 mounting points diameter, and 45.6 pulley-to-alternator distance. For this listing, part number MG273 is the main reference point. Listed voltage is 24. Listed output rating is 120. These details should still be checked against the original unit before ordering.