Bosch Alternator 24V 100A 0124655189

The Bosch Alternator 24V 100A, part number 0124655189, is a new rotating electrical unit supplied as an each item. It is specified with a 24V system, 100A charge current, internal regulator, and an 8 groove multi-belt pulley with a 74mm outside diameter.

This alternator is listed as an alternator type excl. vacuum pump, with a single leg alternator mount and single pivoted lever fastening type. That combination matters when checking physical fit, because mounting style and drive layout need to match the existing unit before installation.

Bosch identifies this unit for Bosch applications and notes that 2 alternators are fitted for each application. It is manufactured in Mexico and carries a one year warranty, which gives a clear reference point when matching by part number and application details.

Key Features

• 24V alternator with 100A charge current
• Internal regulator
• 8 groove multi-belt pulley
• 74mm pulley outside diameter
• Single leg alternator mount
• Single pivoted lever fastening type

Specifications

• Brand: Bosch
• Part number: 0124655189
• Product type: Alternator
• Voltage: 24V
• Power rating: 100A
• Charge current: 100A
• Regulator type: Internal
• Pulley section: 8 groove

Verified fitment references

• Caterpillar CW34
• Caterpillar CW34 2013
• John Deere 544L
• John Deere 544L 2018
• John Deere 620G/ GP
• John Deere 620G/ GP 2018
• John Deere 622G/ GP
• John Deere 622G/ GP 2018

Application and Buying Notes

Before ordering, check the part number 0124655189 against the alternator already fitted to the machine. The listed application data includes Caterpillar CW34 and a range of John Deere models, but matching the exact alternator mounting, pulley layout, and regulator style is still essential.

This unit is a 24V, 100A alternator with an 8 groove pulley and internal regulator. Those details need to line up with the charging system already in the vehicle or machine, especially where the alternator mount is single leg and the fastening type is a single pivoted lever.

The note that 2 alternators are fitted for each application means the machine may use a paired arrangement. Confirm how the existing unit is configured before purchase, and compare pulley section, number of grooves, and alternator type excl. vacuum pump with the old part.

If the existing alternator is being replaced due to charging issues, it is sensible to inspect the V-belt or V-ribbed belt at the same time. Bosch lists this as a recommended additional repair, and belt condition can affect charging performance and pulley wear.

Because this is a new Bosch alternator, the practical buying check is still the same: confirm the model application, compare the physical mount, and verify the electrical specification. A correct part number match is the strongest starting point, but the visible mounting and pulley details should also be checked carefully.

The packaging dimensions are 27.9 by 23.2 by 21, so allow for handling and storage space when receiving the part. Keep the unit protected until installation, and avoid assuming compatibility from model name alone if the original alternator differs in drive or mounting arrangement.

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 0124655189 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, Pulley Outside Diameter 74mm, Regulator Type Internal, Voltage 24, Alternator Mount Single 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, Packaging width 23.2, Manufactured in Mexico, Product Group 1 ROTATING ELECTRICAL, Part No. 0124655189, Brand BOSCH, Description Bosch Alternator 24V 100A, Power Rating (Amp) 100, Pulley Section 8 Groove, Suits Unit Make Bosch.

Bosch Alternator 24V 100A. Part number 0124655189 should be checked first. Listed voltage is 24. Listed output rating is 100. 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 8 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 0124655189, 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 24 and output 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include CATERPILLAR CW34, CATERPILLAR CW34 2013, JOHN DEERE 544L, JOHN DEERE 544L 2018, JOHN DEERE 620G/ GP, JOHN DEERE 620G/ GP 2018. 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.

Compatibility note: Confirm fitment using part number 0124655189, the 24V 100A specification, the 8 groove multi-belt pulley, and the single leg / single pivoted lever mounting details before purchase. The listed application references should be checked against the alternator currently fitted to the machine.

FAQ

What is the part number for this Bosch alternator?

The part number is 0124655189.

What voltage and amperage is this alternator?

It is a 24V alternator with a 100A power rating and 100A charge current.

Does this alternator have an internal regulator?

Yes. The listed regulator type is internal.

What pulley setup does it use?

It uses an 8 groove multi-belt pulley with a 74mm outside diameter.

Is this a new or remanufactured alternator?

It is listed as new.

What should I check before ordering?

Check the part number 0124655189, the 24V 100A specification, the single leg mount, the single pivoted lever fastening type, and the 8 groove pulley arrangement against the unit currently fitted.