Bosch Alternator 12V 90A Part No. 1986A00779

The Bosch Alternator 12V 90A is a rotating electrical component with a 12-volt system rating and a 90 amp charge current. It is listed under Part No. 1986A00779 and supplied as a single each unit, with a 12 month warranty.

This alternator is specified as an alternator type excl. vacuum pump and uses a double pivot lever fastening type. Those details matter when checking whether the unit matches the mounting style and equipment layout on the vehicle before ordering.

Bosch lists this unit with vehicle-specific regulators, long lasting premium quality bearings, and non-recycled copper. For buyers comparing alternators, the key checkpoints here are the 12V rating, 90A output, Part No. 1986A00779, and the excluded vacuum pump design.

Key Features

• 12V alternator with 90A charge current
• Part No. 1986A00779
• Alternator type: excl. vacuum pump
• Double pivot lever fastening type
• Vehicle application regulators
• Premium quality bearings

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Power rating: 90A
• Alternator charge current: 90A
• Fastening type: Double pivot lever
• Alternator type: Excl. vacuum pump
• Unit of measure: Each

Fitment information provided

• Audi A3
• Audi TT
• Seat Cordoba
• Skoda Octavia
• Volkswagen Beetle
• Volkswagen Bora
• Volkswagen California
• Volkswagen Golf

Application and Buying Notes

Before ordering, match the 12V system, the 90A output, and Part No. 1986A00779 to the unit already on the vehicle. The alternator is listed as excl. vacuum pump, so the physical setup must suit that configuration as well as the double pivot lever fastening type.

The fitment data supplied includes Audi A3, Audi TT, Seat Cordoba, Skoda Octavia, and several Volkswagen models including Beetle, Bora, Golf, Polo, Transporter, California, LT 28-46, New Beetle, and Transporter / Caravelle. That is useful for narrowing the application, but the exact year, engine, and build details still need to be checked against the vehicle.

If you are replacing a charging system component, inspect the mounting arrangement and belt setup at the same time. Bosch recommends V-Belt or V-Ribbed Belt related additional repairs, which is a practical reminder to check belt condition and alignment while the alternator is out.

The listed features focus on internal construction and application-specific regulators rather than performance claims. Non-recycled copper, premium bearings, and vehicle-designed regulators are relevant quality details, but the correct fit still depends on the part number and the vehicle application details supplied for your car.

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 1986A00779 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, Packaging width 18.5, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00779.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Alternator 12V 90A, Power Rating (Amp) 90, Alternator Charge Current [A] 90, Alternator Type excl. vacuum pump, Packaging length 24, Packaging height 20, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 90A. Part number 1986A00779 should be checked first. Listed voltage is 12. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00779, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include AUDI A3, AUDI A3 1997, AUDI A3 1998, AUDI A3 1999, SEAT CORDOBA, SEAT CORDOBA 1998. 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 compatibility using Part No. 1986A00779, the 12V 90A rating, the excl. vacuum pump design, and the listed vehicle application details before purchase.

FAQ

What is the part number for this Bosch alternator?

The part number listed is 1986A00779. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. 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 90A charge current and 90A power rating. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. These details should still be checked against the original unit before ordering.

Does this alternator include a vacuum pump?

No. It is listed as alternator type excl. vacuum pump. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. These details should still be checked against the original unit before ordering.

What mounting style is specified?

The fastening type is listed as double pivot lever. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. These details should still be checked against the original unit before ordering.

Which vehicle makes are mentioned in the fitment data?

Audi, Seat, Skoda, and Volkswagen are listed in the supplied fitment information. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. These details should still be checked against the original unit before ordering.

What warranty is listed for this alternator?

The listed warranty is 12 months. For this listing, part number 1986A00779 is the main reference point. Listed voltage is 12. Listed output rating is 90. Published fitment references include AUDI A3, AUDI A3 1997, AUDI A3 1998. These details should still be checked against the original unit before ordering.