Bosch Alternator 12V 150A 0121615114

This Bosch alternator is a new 12V, 150A unit with part number 0121615114. It uses an internal regulator, pad mount, direct fastening, and is listed as an alternator excluding vacuum pump, which makes the exact mounting and application details important when checking against an existing unit.

The pulley setup is a 5 groove design with a free-wheel belt pulley, and the pulley outside diameter is 55 mm. The unit is supplied with pin code IR161 and has a 10 mm adjusting hole diameter. These details matter when comparing the replacement to the vehicle’s original alternator and belt arrangement.

Bosch lists this alternator for rotating electrical applications and recommends additional checks on the V-Belt or V-Ribbed Belt when the charging system is being serviced. It is supplied as each, carries a one year warranty, and is intended for buyers who want to match the part number and physical specifications before ordering.

Key Features

• New Bosch alternator
• 12V, 150A output
• Internal regulator
• Direct fastening design
• Pad mount alternator
• Free-wheel belt pulley

Specifications

• Part number: 0121615114
• Brand: Bosch
• Voltage: 12V
• Charge current: 150A
• Power rating: 150 amp
• Pulley outside diameter: 55 mm
• Pulley section: 5 groove
• Number of grooves: 6

Application and Buying Notes

Before ordering, compare the part number 0121615114 with the number on the existing alternator. That is the clearest starting point when confirming whether this Bosch 12V 150A unit suits the vehicle or machine already fitted with a pad-mounted, direct fastening alternator.

Check the mounting style, pulley arrangement, and belt drive details carefully. This alternator is listed with a 55 mm pulley outside diameter, a 5 groove pulley section, 6 grooves, and a free-wheel belt pulley, so the physical match to the original unit is just as important as the electrical rating.

The 150 amp output and internal regulator are useful reference points, but they do not replace a proper fitment check. If the original alternator differs in mount type, pulley configuration, or whether a vacuum pump is part of the assembly, this unit may not be the correct replacement.

If the charging system is being serviced at the same time, Bosch recommends checking the V-Belt or V-Ribbed Belt as additional repair work. That is practical advice where wear in the belt drive may have contributed to alternator issues or where access has already been opened up.

Because fitment data is not listed here, the safest approach is to confirm the part number, mount, pulley details, and application against the removed unit or vehicle documentation before purchase. That reduces the risk of ordering an alternator that looks close but differs in the key areas that matter.

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 0121615114 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, Pin Code IR161, Pulley Outside Diameter 55mm, Regulator Type Internal, Voltage 12, New / Reman. New, Fastening Type Direct fastening, 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. 0121615114, Brand BOSCH, Description Bosch Alternator 12V 150A, Adjusting Hole Diameter 10, Power Rating (Amp) 150, Pulley Section 5 Groove, Suits Unit Make Bosch, Alternator Mount Pad.

Bosch Alternator 12V 150A. Part number 0121615114 should be checked first. Listed voltage is 12. Listed output rating is 150. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 0121615114, 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.

Compatibility note: Please confirm compatibility by matching part number 0121615114, the pad mount and direct fastening layout, and the 55 mm 5 groove free-wheel pulley details against the original unit before ordering.

FAQ

What is the part number for this Bosch alternator?

The part number is 0121615114. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. 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 150A charge current and 150 amp power rating. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as new. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes. The regulator type is internal. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

What pulley details are listed?

It has a 55 mm pulley outside diameter, a 5 groove pulley section, 6 grooves, and a free-wheel belt pulley. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.

What should I check before buying?

Match part number 0121615114, the pad mount and direct fastening design, the 12V 150A rating, and the pulley and belt details to the original alternator. For this listing, part number 0121615114 is the main reference point. Listed voltage is 12. Listed output rating is 150. These details should still be checked against the original unit before ordering.