Mahle Alternator 12V 65A MG271

The MAHLE MG271 is a new 12V alternator with a 65A charge current, supplied as a single unit and fitted with a belt pulley. It uses an internal regulator, CW rotation, and a single-leg alternator mount, so the physical layout needs to match the vehicle application as well as the electrical spec.

Key dimensions worth checking before ordering are the 165mm mount centre to centre, 27mm mount leg thickness, 83.0 mounting points diameter, and 91.5mm pulley outside diameter. The connector / clamp is listed as W, and the unit is set up for one belt.

This alternator is listed under MAHLE part number MG271 and is described as a 12V 65A unit. Fitment information is provided for selected Massey Ferguson applications, but the final check should always be made against the part number, mounting style, pulley arrangement, and connector details on the existing unit.

Key Features

• MAHLE alternator, part number MG271
• 12V system with 65A charge current
• New unit, supplied each
• Internal regulator
• CW rotation
• Single-leg alternator mount

Specifications

• Type: Alternator
• Voltage: 12V
• Power rating / alternator charge current: 65A
• Regulator type: Internal
• Rotation: CW
• Mount type: Single leg
• Pulley section: A
• Pulley outside diameter: 91.5mm

Listed fitment applications

• Massey Ferguson 178
• Massey Ferguson 760
• Massey Ferguson 850
• Massey Ferguson MF 148
• Massey Ferguson MF 184
• Massey Ferguson MF 184 F
• Massey Ferguson MF 186
• Massey Ferguson MF 20

Application and Buying Notes

When replacing an alternator, the safest approach is to compare the part number MG271, the 12V electrical system, and the 65A charge rating against the unit already fitted to the vehicle. The alternator also needs to match the mounting layout, including the single-leg mount, 165mm centre-to-centre measurement, and the 27mm mount leg thickness.

Pulley and drive details matter just as much as the electrical rating. This unit has a pulley section A, a 91.5mm pulley outside diameter, one belt, and CW rotation, so the belt path and rotation direction must suit the application before fitting proceeds.

The connector / clamp is listed as W, which means the plug style should be checked against the original alternator or the vehicle harness. The mounting points diameter of 83.0, pivot hole diameter of 10.3, and adjusting hole diameter of 8 are practical checks for anyone confirming the physical swap.

For listed Massey Ferguson applications, use the vehicle model and year only as a guide and still verify the old alternator against the MG271 dimensions. Age, previous repairs, and model variants can change the correct replacement, especially where the pulley, bracket spacing, or connector style has been altered.

If you are unsure, remove the existing alternator and compare the pulley, mounting ears, regulator style, and connector arrangement side by side. Matching the key measurements and the part number is the most reliable way to avoid an incorrect order on rotating electrical parts.

The unit is supplied new and carries a one year warranty. That gives a straightforward replacement option, but the installation still depends on the application being correct for the vehicle and the belt drive configuration.

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 MG271 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 27mm, Power Rating (Amp) 65, Pulley Section A, Rotation CW, Voltage 12, Mount Cnt to Cnt 165mm, Alternator Charge Current [A] 65.

Additional published details for cross-checking include Connector / Clamp W, Mounting points diameter 83.0, Distance from pulley to the alternator 32.5, Packaging width 17.60, Net Weight 4710, Product Group 1 ROTATING ELECTRICAL, Part No. MG271, Brand MAHLE, Description Mahle Alternator 12V 65A, Adjusting Hole Diameter 8.

Mahle Alternator 12V 65A. Part number MG271 should be checked first. Listed voltage is 12. Listed output rating is 65. 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 A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MG271, 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 65 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching MAHLE part number MG271, 12V system requirement, 65A rating, single-leg mount, CW rotation, pulley details, and connector / clamp W against the original alternator and vehicle application before ordering.

FAQ

What is the part number for this alternator?

The MAHLE part number is MG271.

What voltage and output does it have?

It is a 12V alternator with a 65A charge current / power rating.

Is this a new or remanufactured unit?

It is listed as new.

What regulator type does it use?

It has an internal regulator.

What vehicles are listed for this alternator?

Listed applications include Massey Ferguson 178, 760, 850, MF 148, MF 184, MF 184 F, MF 186, MF 20, MF 240, MF 245, MF 255, MF 273, MF 285 S, MF 3080, MF 3680, MF 390 T, MF 550, MF 699, MF 8210, MF 8220, TX45, and MF 698 T.

What should I check before buying?

Check the part number MG271, the 12V and 65A rating, single-leg mounting, CW rotation, belt pulley details, and connector / clamp W against the alternator already on the vehicle.