Bosch Alternator 12V 180A 0125811028

This Bosch alternator is a new 12V, 180A unit, part number 0125811028, supplied as each and made in Spain. It is listed with an internal regulator, a quad leg alternator mount, and a 6 groove pulley with free-wheel belt pulley arrangement.

It suits Bosch applications and is noted for stop start applications. The alternator is a CW rotation unit, with a 56mm pulley outside diameter, M8 pivot hole diameter, M8 adjusting hole diameter, and 61mm inside mounting legs.

This is an alternator type that excludes a vacuum pump. For the right job, the important checks are the part number, mounting style, pulley type, rotation, and whether the vehicle uses a stop start charging setup.

A one year warranty is listed. Recommended additional repairs include the V-belt or V-ribbed belt, which is worth checking if the existing belt shows wear, glazing, cracking, or contamination.

Key Features

• New Bosch alternator
• 12V, 180A output
• Internal regulator
• 6 groove pulley
• Free-wheel belt pulley
• CW rotation

Specifications

• Part number: 0125811028
• Brand: Bosch
• Type: Alternator
• Voltage: 12V
• Power rating: 180A
• Alternator charge current: 180A
• New / remanufactured: New
• Warranty: One year

Fitment guidance

• Listed fitment references include Skoda Superb models across 2008 to 2015.
• Listed fitment references include Volkswagen CC models across 2008 to 2016.
• Listed fitment references include Volkswagen Passat, including 2005, and Volkswagen Passat Alltrack.
• Fitment is application-specific and should be confirmed against the part number, mount style, pulley specification, and rotation before ordering.

Application and Buying Notes

The safest way to confirm this alternator is by matching part number 0125811028 and then checking the vehicle’s mounting arrangement. The key physical points here are the quad leg mount, double pivot lever fastening type, 61mm inside mounting legs, and M8 pivot and adjusting holes.

The pulley setup also matters. This unit is supplied with a 6 groove pulley and free-wheel belt pulley, so the belt system on the vehicle should match that arrangement. If the existing belt shows wear, the recommended additional repair is the V-belt or V-ribbed belt, which is sensible to inspect at the same time.

Because this alternator is noted for stop start applications and is an internal regulator unit, it should only be selected where those details match the vehicle’s charging system requirements. A standard alternator with a different regulator arrangement, rotation, or pulley profile is not an equivalent substitute.

The alternator is described as new and excludes a vacuum pump, so it is important to compare the full assembly layout rather than relying on voltage alone. The 12V and 180A figures tell you the electrical output, but they do not by themselves confirm fitment across all vehicles that use Bosch rotating electrical components.

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 0125811028 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 61mm, Pivot Hole Diameter M8, Pulley Outside Diameter 56mm, Regulator Type Internal, Suits Unit Make Bosch, Note Suits stop start applications, New / Reman. New.

Additional published details for cross-checking include Fastening Type Double Pivot Lever, Alternator Type excl. vacuum pump, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 18.5, Manufactured in Spain, Product Group 1 ROTATING ELECTRICAL, Part No. 0125811028, Brand BOSCH, Description Bosch Alternator 12V 180A, Adjusting Hole Diameter M8.

Bosch Alternator 12V 180A. Part number 0125811028 should be checked first. Listed voltage is 12. Listed output rating is 180. 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 0125811028, 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 180 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using part number 0125811028, the Bosch application details, the 12V 180A specification, and the mounting and pulley measurements before purchase. If the vehicle uses a different mount, pulley, rotation, or regulator arrangement, this unit may not be suitable.

FAQ

What is the part number for this alternator?

The part number is 0125811028. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 180A power rating and 180A charge current. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.

Does it suit stop start applications?

Yes, it is noted as suiting stop start applications. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.

What pulley and rotation details are listed?

It has a 6 groove pulley, a free-wheel belt pulley, a 56mm pulley outside diameter, and CW rotation. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.

What should I check before buying?

Confirm the part number, Bosch application, mounting style, M8 pivot and adjusting holes, 61mm inside mounting legs, and the pulley specification against the existing unit. For this listing, part number 0125811028 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include SKODA SUPERB, SKODA SUPERB 2008, SKODA SUPERB 2009. These details should still be checked against the original unit before ordering.