Bosch Alternator 12V 150A 1986A01044

This Bosch alternator is a 12V, 150A unit with part number 1986A01044. It is listed as an alternator type excl. vacuum pump, with a double pivot lever fastening type and a recommended additional repair of the V-Belt/V-Ribbed Belt where required during replacement.

A 150A charge current puts this unit in the higher-output category for 12V charging systems, so it is important to match the part number and application details carefully before ordering. The alternator is supplied as each and carries a 12 months warranty.

Bosch describes the unit as made from high-quality raw materials, corrosion resistant, and fitted with a reduction drive to maintain continual speeds for easier starting. Those points matter in a rotating electrical component, but the correct fit still depends on the exact vehicle application and the listed specifications.

Key Features

• 12V alternator with 150A charge current
• Bosch part number 1986A01044
• Alternator type: excl. vacuum pump
• Double pivot lever fastening type
• Corrosion resistant construction
• Reduction drive for easier starting

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12
• Power rating: 150A
• Alternator charge current: 150A
• Part No.: 1986A01044
• Fastening type: Double Pivot Lever
• Recommended additional repair: V-Belt/V-Ribbed Belt

Fitment details supplied

• Porsche
• Porsche 911
• Porsche Boxster
• Porsche Cayman
• Sample applications listed include Porsche 911 2011 through 2019
• Sample applications also include Porsche Boxster 2012

Application and Buying Notes

Before buying, confirm the Bosch part number 1986A01044 against the vehicle application and check whether your alternator is the version excl. vacuum pump. That detail is important because it separates this unit from other configurations that may look similar but are not the same fit.

The 12V and 150A ratings need to suit the charging system already fitted to the vehicle. A mismatch in voltage, charge current, or mounting arrangement can lead to installation problems, so the fastening type and application data should be checked together rather than in isolation.

The listed fastening type is Double Pivot Lever, and the recommended additional repair is the V-Belt/V-Ribbed Belt. If the belt condition is poor, replacing it at the same time is a sensible step because alternator performance depends on correct drive belt condition and tension.

This alternator is sold as each and includes a 12 months warranty. For Porsche applications shown in the fitment data, use the model and year reference only as a guide and confirm the exact vehicle match with the part number, charging specification, and alternator layout 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 1986A01044 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 12 Months, Voltage 12, Fastening Type Double Pivot Lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A01044, Brand BOSCH, Description Bosch Alternator 12V 150A.

Additional published details for cross-checking include Power Rating (Amp) 150, Alternator Charge Current [A] 150, Alternator Type excl. vacuum pump, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 150A. Part number 1986A01044 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.

For part number 1986A01044, 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 150 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012, PORSCHE 911 2013. 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: Please confirm fitment with Bosch part number 1986A01044, the 12V/150A specification, the excl. vacuum pump design, and the Double Pivot Lever mounting arrangement before purchase.

FAQ

What is the Bosch part number for this alternator?

The Bosch part number listed is 1986A01044. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator with a 150A power rating and 150A charge current. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. The alternator type is listed as excl. vacuum pump. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment data?

The fitment data lists Porsche, Porsche 911, Porsche Boxster, and Porsche Cayman, with sample applications including Porsche 911 from 2011 through 2019 and Porsche Boxster 2012. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.

What mounting type is listed for this alternator?

The fastening type is listed as Double Pivot Lever. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.

Is there a warranty on this alternator?

Yes. The listed warranty is 12 months. For this listing, part number 1986A01044 is the main reference point. Listed voltage is 12. Listed output rating is 150. Published fitment references include PORSCHE 911, PORSCHE 911 2011, PORSCHE 911 2012. These details should still be checked against the original unit before ordering.