Bosch Alternator 12V 65A 1986A00757

The Bosch Alternator 12V 65A, part number 1986A00757, is a passenger alternator intended for 12-volt electrical systems. It is rated at 65 amps and is listed as an alternator type excluding vacuum pump, so the application needs to match that configuration before purchase.

This unit uses a single pivoted lever fastening type and is supplied as an each item. Bosch lists the unit as manufactured in Spain, with a 12 months warranty. For buyers replacing a worn charging unit, the part number 1986A00757 is the most reliable check alongside the vehicle application details.

Bosch identifies this alternator as part of the rotating electrical product group, with a charge current of 65A and a description of Bosch Alternator 12V 65A. The listed features focus on durability, corrosion resistance, and a reduction drive designed to maintain continual speeds for easier starting.

Key Features

• 12V passenger alternator
• 65A charging output
• Alternator type: excl. vacuum pump
• Single pivoted lever fastening
• Manufactured in Spain
• 12 months warranty

Specifications

• Brand: Bosch
• Part No.: 1986A00757
• Power Rating (Amp): 65
• Alternator Charge Current [A]: 65
• Voltage: 12
• Type: Alternator Passenger
• Unit of Measure: Each
• Manufactured in: Spain

Verified fitment references

• Audi 80: 1978 to 1988
• Volkswagen Golf: 1983 to 1993
• Volkswagen Passat: listed in fitment data
• Volkswagen Transporter: listed in fitment data
• Volkswagen Transporter / Caravelle: listed in fitment data

Application and Buying Notes

The key checks on this Bosch unit are the part number 1986A00757, the 12V system rating, the 65A output, and the note that it is an alternator type excl. vacuum pump. Those details need to line up with the existing alternator and the vehicle’s charging system before ordering.

Fitment data supplied for this part includes Audi 80 from 1978 through 1988 and Volkswagen Golf from 1983 through 1993, with Volkswagen Passat, Transporter, and Transporter / Caravelle also listed. That makes the application broad, but it still needs to be matched carefully to the exact vehicle variant and the original unit fitted.

The fastening type is listed as a single pivoted lever, which matters when comparing mounting style and physical location. If the mounting arrangement, belt drive setup, or alternator configuration on the vehicle differs, the part may not be suitable even if the model name appears in the fitment data.

Bosch also notes recommended additional repairs as V-Belt/V-Ribbed Belt. When replacing an alternator, it is sensible to inspect the belt condition and related drive components at the same time, since a worn belt can affect charging performance and shorten the life of the replacement unit.

This alternator is described as made from high quality raw materials, corrosion resistant, and fitted with a reduction drive. Those are useful durability cues, but they should be read as product characteristics rather than a substitute for checking the part number, mounting style, voltage, and amperage against the vehicle requirements.

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 1986A00757 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 PASSENGER, Unit of Measure EACH, Warranty 12 Months, Voltage 12, Fastening Type Single pivoted lever, Recommended additional repairs V-Belt/V-Ribbed Belt, Packaging width 18.5, Manufactured in Spain, Product Group 1 ROTATING ELECTRICAL, Part No. 1986A00757.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Alternator 12V 65A, Power Rating (Amp) 65, Alternator Charge Current [A] 65, Alternator Type excl. vacuum pump, Packaging length 24, Packaging height 20, Product Group 2 ALTERNATORS.

Bosch Alternator 12V 65A. Part number 1986A00757 should be checked first. Listed voltage is 12. Listed output rating is 65. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986A00757, 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 passenger in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 65 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm compatibility using part number 1986A00757, the 12V / 65A specification, the single pivoted lever mounting, and the alternator type excl. vacuum pump before ordering.

FAQ

What is the part number for this Bosch alternator?

The listed part number is 1986A00757. For this listing, part number 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. 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 rated at 65A. For this listing, part number 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. 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 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. These details should still be checked against the original unit before ordering.

What vehicles are shown in the fitment data?

The supplied fitment references include Audi 80 from 1978 to 1988, Volkswagen Golf from 1983 to 1993, and Volkswagen Passat, Transporter, and Transporter / Caravelle. For this listing, part number 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. These details should still be checked against the original unit before ordering.

What mounting style is listed for this alternator?

The fastening type is listed as single pivoted lever. For this listing, part number 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. These details should still be checked against the original unit before ordering.

What other parts should be checked when fitting this alternator?

Bosch recommends considering V-Belt/V-Ribbed Belt as an additional repair item. For this listing, part number 1986A00757 is the main reference point. Listed voltage is 12. Listed output rating is 65. Published fitment references include AUDI 80, AUDI 80 1978, AUDI 80 1979. These details should still be checked against the original unit before ordering.