Mahle Alternator 12V 70A MG22

The MAHLE Alternator MG22 is a new 12V unit rated at 70A, supplied with an internal regulator and a V-ribbed belt pulley. It is listed as a single-leg alternator with 2 mounting bores, a 56mm mount leg thickness, and a 10mm pivot hole diameter, so the physical mounting points are just as important to check as the electrical rating.

This alternator is identified as part number MG22 and is marked with Pin Code IR25. The pulley section is 6 groove, the pulley outside diameter is 56mm, and the unit rotates clockwise. Those details matter when matching the alternator to the existing belt drive and mounting arrangement on the vehicle.

The stated output is 70A at 12V, which places it in the standard charging range for many vehicle electrical systems, but the correct application still needs to be confirmed by part number and mounting details. The packaging length is 24.8, packaging height is 17.50, and the unit weight is 5.28kg, which may be useful when comparing to an existing alternator before purchase.

Key Features

• New MAHLE alternator
• 12V, 70A output
• Internal regulator
• Single-leg alternator mount
• V-ribbed belt pulley
• 6-groove pulley section

Specifications

• Brand: MAHLE
• Product type: Alternator
• Voltage: 12V
• Power rating: 70A
• Alternator charge current: 70A
• Regulator type: Internal
• New / remanufactured: New
• Alternator mount: Single leg

Fitment guidance

• MERCEDES-BENZ 124
• MERCEDES-BENZ 190
• MERCEDES-BENZ E-CLASS
• Fitment preview includes MERCEDES-BENZ 124 model years 1984 through 1993

Application and Buying Notes

Before ordering, compare the part number MG22, the 12V 70A output, and the single-leg mounting layout against the alternator currently fitted to the vehicle. The mounting bores distance of 56.0, the 10mm pivot hole diameter, and the 6-groove pulley section are practical checks that can prevent ordering the wrong unit.

The pulley details are important because this alternator uses a V-ribbed belt pulley with a 56mm outside diameter and clockwise rotation. If the belt profile, groove count, or rotation direction does not match the existing setup, the alternator may not suit the application even if the electrical rating appears close.

This is a new alternator with an internal regulator, so it is intended for vehicles that match those electrical and physical requirements. The listed one-year warranty applies to the unit as supplied, but it does not replace the need to verify compatibility by vehicle application, mounting style, and belt arrangement before fitting.

The fitment information provided points to Mercedes-Benz 124, 190, and E-Class applications, including Mercedes-Benz 124 model years 1984 to 1993 in the preview. That is useful as a guide, but the exact vehicle, engine, and alternator setup still need to be checked against the MG22 part number and the existing unit on the car.

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 MG22 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 One Year, Mount Leg Thickness 56mm, Pivot Hole Diameter 10, Pulley Outside Diameter 56mm, Regulator Type Internal, Suits Unit Make Mahle, Alternator Mount Single Leg, New / Reman. New.

Additional published details for cross-checking include Pulleys with V-ribbed belt pulley, Mounting Bores Distance 56.0, Number of belts 6, Packaging length 24.8, Packaging height 17.50, Weight 5.28kg, Product Group 1 ROTATING ELECTRICAL, Part No. MG22, Brand MAHLE, Description Mahle Alternator 12V 70A.

Mahle Alternator 12V 70A. Part number MG22 should be checked first. Listed voltage is 12. Listed output rating is 70. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. 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 MG22, 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 70 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment by matching the MG22 part number, 12V 70A rating, single-leg mount, 6-groove V-ribbed pulley, and the vehicle application details before purchase or installation.

FAQ

What is the part number for this alternator?

The part number listed is MG22. For this listing, part number MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator with a 70A power rating and 70A alternator charge current. For this listing, part number MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. 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 MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It uses an internal regulator. For this listing, part number MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. These details should still be checked against the original unit before ordering.

What pulley setup is listed?

It has a V-ribbed belt pulley with a 6-groove pulley section and a 56mm pulley outside diameter. For this listing, part number MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment guidance?

The fitment guidance points to MERCEDES-BENZ 124, MERCEDES-BENZ 190, and MERCEDES-BENZ E-CLASS, with MERCEDES-BENZ 124 model years 1984 to 1993 shown in the preview. For this listing, part number MG22 is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include MERCEDES-BENZ 124, MERCEDES-BENZ 124 1984, MERCEDES-BENZ 124 1985. These details should still be checked against the original unit before ordering.