Bosch Alternator 12V 140A 0124525530

The Bosch alternator listed here is a 12V, 140A unit with part number 0124525530. It is a new alternator, supplied as each, and it uses an internal regulator with a free-wheel belt pulley and 6-groove pulley section.

Key mounting details include a quad leg alternator mount, 60mm inside mounting legs, and M8x1.25 / 9 pivot and adjusting hole diameters. The unit rotates clockwise and is listed as an alternator type excluding vacuum pump.

This alternator is a Bosch unit and carries a one year warranty. With a 49mm pulley outside diameter and a weight of 6.92kg, it is important to compare the physical mounting and pulley details against the vehicle’s original unit before ordering.

Key Features

• 12V alternator with 140A charge current
• Internal regulator
• Free-wheel belt pulley
• 6-groove pulley section
• Quad leg alternator mount
• Clockwise rotation

Specifications

• Brand: Bosch
• Part No.: 0124525530
• Voltage: 12V
• Charge current: 140A
• Power rating: 140A
• Alternator type: excl. vacuum pump
• Mounting type: Quad Leg
• Fastening type: Double Pivot Lever

Fitment guidance

• Fitment references include Audi A4 and Audi Q5 applications.
• Listed application samples include Audi A4 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 and 2015.
• Listed application samples also include Audi Q5 2008.
• Use the part number, pulley type, mounting style, and dimensions to confirm the correct replacement before purchase.

Application and Buying Notes

The most important check on this alternator is part number 0124525530, then the mounting and pulley details. This unit is a 12V Bosch alternator with 140A output, a quad leg mount, 60mm inside mounting legs, and M8x1.25 / 9 pivot and adjusting holes, so it should only be matched to an existing unit with the same style and measurements.

The pulley arrangement also matters. This alternator has a 49mm pulley outside diameter, a 6-groove pulley section, and a free-wheel belt pulley. If the belt drive on the vehicle does not match those details, the alternator may not be suitable even where the electrical rating appears similar.

It is listed as an alternator type excluding vacuum pump and uses an internal regulator with clockwise rotation. Those are practical verification points for anyone replacing an existing unit, because alternators can look similar externally while differing in regulator design, rotation, or accessory drive setup.

The listed applications mention Audi A4 and Audi Q5, including several A4 model years and Q5 2008. Use those applications as a guide only, then confirm against the original alternator’s part number, mount, pulley, and dimensions before finalising the order.

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 0124525530 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 / 9, Pulley Outside Diameter 49mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Quad Leg, Alternator Charge Current [A] 140.

Additional published details for cross-checking include Pulleys with free-wheel belt pulley, Number of grooves 6, Packaging length 24, Packaging height 20, Weight 6.92kg, Product Group 1 ROTATING ELECTRICAL, Part No. 0124525530, Brand BOSCH, Description Bosch Alternator 12V 140A, Adjusting Hole Diameter M8x1.25 / 9.

Bosch Alternator 12V 140A. Part number 0124525530 should be checked first. Listed voltage is 12. Listed output rating is 140. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Quad 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 0124525530, 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 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching the original part number 0124525530, the 12V/140A specification, quad leg mounting, 6-groove free-wheel pulley, and the listed hole and pulley dimensions against the vehicle’s existing alternator.

FAQ

What is the part number for this Bosch alternator?

The part number is 0124525530. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

What are the electrical specifications?

It is a 12V alternator with 140A charge current and 140A power rating. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

Does this alternator use an internal regulator?

Yes. The regulator type is internal. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

What pulley setup does it have?

It has a free-wheel belt pulley with a 6-groove pulley section and a 49mm pulley outside diameter. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

What mounting details are listed?

The alternator mount is Quad Leg, with 60mm inside mounting legs and M8x1.25 / 9 pivot and adjusting hole diameters. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

Which vehicle applications are mentioned?

The listed applications mention Audi A4 and Audi Q5, with sample A4 years from 2007 through 2015 and Audi Q5 2008. For this listing, part number 0124525530 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.