Mahle Alternator 24V 55A MG770

The MAHLE Alternator MG770 is a heavy commercial rotating electrical component rated at 24V and 55A. It is listed as an OE product and supplied as each, which makes the key identifiers worth checking carefully before ordering: MAHLE brand, part no. MG770, and alternator charge current of 55 amps.

This alternator includes a belt pulley and is configured for one belt. The mounting setup is shown with one mounting bore, mounting bore distance of 32.0, and mounting points diameter of 115.0, so those dimensions are important when comparing against the unit being replaced.

For buyers working on heavy commercial equipment, the main fitment checkpoint is not the appearance alone but the combination of voltage, output, pulley arrangement, and mounting dimensions. This unit is specified as 24V with a 55A charge current, and the distance from pulley to alternator is listed at 51.7.

The part is packaged with dimensions of 24.8 length, 17.50 height, and 18.60 width, with a net weight of 4400. It carries a one year warranty and is identified in the MAHLE range as an alternator in the rotating electrical product group.

Key Features

• 24V heavy commercial alternator
• 55A charge current
• OE product
• Supplied with belt pulley
• One belt configuration
• Part No. MG770

Specifications

• Type: Alternator heavy comm
• Unit of measure: Each
• Alternator charge current: 55A
• Voltage: 24V
• Part number: MG770
• Number of belts: 1
• Pulleys: with belt pulley
• Number of mounting bores: 1

Application and Buying Notes

Before ordering, compare the MAHLE part number MG770 with the removed alternator, along with the electrical rating of 24V and 55A. Those identifiers matter because alternators can look similar while differing in output, pulley setup, and mounting layout.

The pulley arrangement is listed as with belt pulley and one belt, so the belt drive on the vehicle should be checked against the unit being replaced. The mounting details also need to match: one mounting bore, 32.0 mounting bores distance, and 115.0 mounting points diameter.

The distance from pulley to alternator is given as 51.7, which can be useful when checking physical clearance and alignment. If the replacement unit does not match in these dimensions, it should not be assumed to fit just because it is a 24V alternator.

This part is sold as an OE product and carries a one year warranty. That does not remove the need to confirm the application carefully, but it does give a clear reference point for buyers who want the same style of replacement by part number and specification.

If you are matching an existing unit, use the removed alternator as the best comparison point for output, pulley configuration, and mounting points. Heavy commercial charging systems are sensitive to specification changes, so the safest approach is to verify the part number, voltage, amperage, and mounting measurements together.

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 MG770 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, Pulleys with belt pulley, Mounting Bores Distance 32.0, Number of belts 1, Packaging length 24.8, Packaging height 17.50, Product Group 2 ALTERNATORS.

Additional published details for cross-checking include Part No. MG770, Brand MAHLE, Description Mahle Alternator 24V 55A, Alternator Charge Current [A] 55, Number of mounting bores 1, Mounting points diameter 115.0, Distance from pulley to the alternator 51.7, Packaging width 18.60, Net Weight 4400, Product Group 1 ROTATING ELECTRICAL.

Mahle Alternator 24V 55A. Part number MG770 should be checked first. Listed output rating is 55. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number MG770, 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 output 55 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility using MAHLE part no. MG770, the 24V 55A rating, pulley configuration, and mounting measurements before purchase. If any of those details differ from the unit being replaced, the alternator should be checked again against the vehicle application.

FAQ

What is the part number for this alternator?

The part number listed is MG770. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.

What voltage and charge output does it have?

It is specified as a 24V alternator with a 55A charge current. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.

Does it include a pulley?

Yes. It is listed as with belt pulley. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.

How many belts does it suit?

It is specified for one belt. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.

Is this an OE product?

Yes. One of the listed features is OE product. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.

What warranty is listed?

The listed warranty is one year. For this listing, part number MG770 is the main reference point. Listed output rating is 55. These details should still be checked against the original unit before ordering.