Mahle Alternator 12V 70A MG471

The Mahle MG471 alternator is a new 12V unit rated at 70A, supplied as each and identified with part number MG471. It uses an internal regulator, a twin leg alternator mount, and a 6 groove V-ribbed belt pulley, so it is important to compare the mounting layout and pulley style with the unit being replaced.

This alternator is listed with a clockwise rotation, a pulley outside diameter of 56mm, and a distance from pulley to alternator of 39.6. The mounting details also include inside mounting legs of 60mm, a mount centre-to-centre of 130mm, and 2 mounting bores, which are all useful checks when matching it to a vehicle or machine application.

Mahle notes this alternator is manufactured using environmentally friendly technologies and materials, and that it fulfils international standards and requirements for electromagnetic compatibility. It is also supplied with a dust cover. These are practical details to note when replacing an existing alternator in a busy work environment or where electrical noise control matters.

Key Features

• 12V alternator with 70A charge current
• Internal regulator
• New unit, supplied each
• Twin leg alternator mount
• 6 groove V-ribbed belt pulley
• Clockwise rotation

Specifications

• Brand: Mahle
• Product type: Alternator
• Voltage: 12V
• Charge current: 70A
• Power rating: 70 amp
• Part number: MG471
• Pin code: IR139
• New / remanufactured: New

Verified fitment applications

• JOHN DEERE 244J
• JOHN DEERE 244J 2004
• JOHN DEERE 304J
• JOHN DEERE 304J 2005
• JOHN DEERE 313
• JOHN DEERE 313 2007
• JOHN DEERE 315
• JOHN DEERE 315 2007

Application and Buying Notes

When replacing an alternator, the safest approach is to match the part number, mounting arrangement, pulley type, and electrical specification before ordering. For this unit, the key identifiers are MG471, 12V, 70A, internal regulator, twin leg mount, and 6 groove V-ribbed belt pulley. Those details need to line up with the existing alternator and the machine application.

The mounting measurements are just as important as the electrical rating. Check the 60mm inside mounting legs, 130mm mount centre-to-centre, 2 mounting bores, M8x1.25 pivot and adjusting holes, and the 56mm pulley outside diameter. If any of those differ from the removed unit, the alternator may not bolt up or align correctly.

For John Deere applications, the listed fitment covers a range of machines including 244J, 304J, 313, 315, 315SJ, 318D, 319D, 320, 320D, 323D, 325, 326D, 328, 328D, 329D, 332, 332D, 333D, 450J, 5083E/5093E, 5225, 5325N, 5425 and 5425N. Even with that application list, the final check should still be made against the machine’s existing alternator and mounting details.

The listed one-year warranty applies to the part as supplied. If the machine has been modified, has a different pulley arrangement, or uses a different alternator bracket, confirm the fit carefully before purchase. The alternator is supplied new, so it is suitable for buyers wanting a replacement unit rather than a remanufactured item.

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 MG471 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, Inside Mounting Legs 60mm, Pivot Hole Diameter M8x1.25 / 8, Pulley Outside Diameter 56mm, Regulator Type Internal, Suits Unit Make Mahle, Note Dust cover, Mount Cnt to Cnt 130mm.

Additional published details for cross-checking include Alternator Charge Current [A] 70, Number of mounting bores 2, Mounting points diameter 90.0, Distance from pulley to the alternator 39.6, Packaging width 18.60, Net Weight 5938, Product Group 2 ALTERNATORS, Part No. MG471, Brand MAHLE.

Mahle Alternator 12V 70A. Part number MG471 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 Twin 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 MG471, 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.

Available application references include JOHN DEERE 244J, JOHN DEERE 244J 2004, JOHN DEERE 304J, JOHN DEERE 304J 2005. 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.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by matching the MG471 part number, the 12V 70A rating, the twin leg mount, the 6 groove pulley, and the listed mounting measurements against the removed unit and the machine application before ordering.

FAQ

Is this alternator new or remanufactured?

It is listed as new.

What voltage and charge output does it have?

It is a 12V alternator with a 70A charge current.

What is the part number?

The part number is MG471.

What regulator type does it use?

It uses an internal regulator.

What pulley setup does it have?

It has a 6 groove V-ribbed belt pulley with a 56mm outside diameter.

Which applications are listed for fitment?

Listed applications include JOHN DEERE 244J, 304J, 313, 315, 315SJ, 318D, 319D, 320, 320D, 323D, 325, 326D, 328, 328D, 329D, 332, 332D, 333D, 450J, 5083E/5093E, 5225, 5325N, 5425 and 5425N. Final confirmation should still be made against the existing alternator and mounting measurements.