Bosch Alternator 12V 140A 0124525143

The Bosch Alternator 12V 140A, part number 0124525143, is a new rotating electrical unit supplied as each. It is rated at 140 amps and 12 volts, with an internal regulator and a 6 groove multi-belt pulley. These details matter when matching the alternator to the vehicle’s charging system and belt arrangement.

This alternator is listed with a quad leg mount, single pivoted lever fastening type, and an adjusting hole diameter of 10 mm. The pulley outside diameter is 53 mm, and the unit is specified as excluding a vacuum pump. If you are replacing a worn alternator, these mounting and pulley details should be checked carefully against the removed unit before ordering.

Bosch identifies this unit as new and backed by a one year warranty. It is described as corrosion resistant, made from quality raw materials, and fitted with a reduction drive. For buyers comparing options, the key identifiers are the Bosch brand, 12V system, 140A output, and part number 0124525143.

Key Features

• 12V alternator with 140A charge current
• Bosch brand new unit
• Internal regulator
• 6 groove multi-belt pulley
• Quad leg alternator mount
• Single pivoted lever fastening type

Specifications

• Brand: Bosch
• Part No.: 0124525143
• Voltage: 12V
• Charge current: 140A
• Warranty: One year
• Condition: New
• Alternator type: Excl. vacuum pump
• Pulley section: 6 groove

Application and Buying Notes

Before ordering, confirm the removed alternator matches the Bosch part number 0124525143, the 12V system, and the 140A output. Those three details are the fastest way to narrow the match and avoid issues with undercharging, over-specification, or connector and mounting mismatches.

Also check the physical features on the vehicle: quad leg mount, single pivoted lever fastening, 10 mm adjusting hole diameter, 53 mm pulley outside diameter, and 6 groove pulley section. If any of these differ from the existing unit, the alternator may not install correctly even if the electrical rating is similar.

This alternator is listed as excluding a vacuum pump, so it should only be considered where that configuration is correct for the application. The internal regulator is another important point, because regulator type needs to match the vehicle’s charging setup. The unit is sold new, so it suits buyers wanting a direct replacement rather than a remanufactured unit.

If the belt shows wear, Bosch notes V-belt / V-ribbed belt as a recommended additional repair. That is worth considering at the same time as the alternator, particularly where the belt condition may affect charging performance or pulley wear.

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 0124525143 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, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Bosch, Alternator Mount Quad Leg, Insulated Return No, Fastening Type Single pivoted lever, Alternator Type excl. vacuum pump.

Additional published details for cross-checking include Recommended additional repairs V-Belt/V-Ribbed Belt, Product Group 1 ROTATING ELECTRICAL, Part No. 0124525143, Brand BOSCH, Description Bosch Alternator 12V 140A, Adjusting Hole Diameter 10, Pulley Outside Diameter 53mm, Regulator Type Internal, Voltage 12, New / Reman. New.

Bosch Alternator 12V 140A. Part number 0124525143 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 0124525143, 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 compatibility by matching the Bosch part number 0124525143, the 12V 140A specification, the 6 groove pulley, and the quad leg mounting details against your existing alternator and vehicle application before purchase.

FAQ

Is this alternator new or remanufactured?

This Bosch alternator is listed as new. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is 0124525143. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.

What voltage and amperage is it rated at?

It is rated at 12V and 140A. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.

What pulley setup does it use?

It has a 6 groove multi-belt pulley, with a pulley outside diameter of 53 mm. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.

What should I check before ordering?

Check the part number, 12V rating, 140A output, quad leg mount, 6 groove pulley, and the note that it excludes a vacuum pump. For this listing, part number 0124525143 is the main reference point. Listed voltage is 12. Listed output rating is 140. These details should still be checked against the original unit before ordering.