Bosch Starter Motor 12V 1.0KW 10 Tooth CCW 1986S00781

The Bosch Starter Motor 12V 1.0kW 10 tooth CCW, part number 1986S00781, is a new starter motor supplied as each and built with a 2-hole mount type. It uses a 12.5 mm mount hole diameter, a 76 mm flange diameter, and a 210 mm overall length, so matching the physical details is just as important as matching the electrical rating.

This starter is rated at 1.0kW and operates on 12 volts, with 10 teeth and counter-clockwise rotation. The pinion at rest measures 52.5 mm, which is a useful check when comparing against the original unit or a removed starter. It is intended for dry clutch applications and is listed as suited to Bosch units.

Fitment information supplied for this part includes Audi A3, Skoda Octavia, Volkswagen Golf, and Volkswagen Jetta applications across a number of model years. Because starter fitment can vary by engine and build details, the part number 1986S00781 and the listed mounting and gear details should be confirmed before purchase.

Key Features

• 12V starter motor with 1.0kW power rating
• 10 tooth pinion with CCW rotation
• 2-hole starter mount type
• New unit, not remanufactured
• Designed in fit and performance to meet OE starters
• Built to withstand harsh operating environments

Specifications

• Part number: 1986S00781
• Brand: Bosch
• Product type: Starter Motor
• Voltage: 12V
• Power rating: 1.0kW
• Rotation: CCW
• Number of teeth: 10
• Starter mount type: 2 hole

Known fitment references

• Audi A3, including model years shown in the supplied fitment list
• Skoda Octavia, including model years shown in the supplied fitment list
• Volkswagen Golf, including model years shown in the supplied fitment list
• Volkswagen Jetta, including model years shown in the supplied fitment list

Application and Buying Notes

Before ordering, check the removed starter against the key identifiers on this unit: Bosch part number 1986S00781, 12V system voltage, 1.0kW output, 10 tooth pinion, and CCW rotation. The 2-hole mounting arrangement, 12.5 mm mount hole diameter, and 76 mm flange diameter should line up with the original part and the vehicle application.

Starter motors often look similar across different makes and years, but small differences in rotation, tooth count, flange size, and pinion position can stop a correct-looking part from fitting properly. The 52.5 mm pinion at rest and 210 mm overall length are practical measurement checks when comparing against the existing starter.

The supplied fitment references include Audi A3, Skoda Octavia, Volkswagen Golf, and Volkswagen Jetta applications. Those model names are a guide only; final compatibility still needs to be confirmed against the specific vehicle details, the original starter, and the part number 1986S00781.

This is a new Bosch starter motor and is listed for dry clutch applications. If the vehicle has been modified, if the replacement unit was changed previously, or if the original starter has a different mount style or tooth count, compare the physical measurements carefully before fitting.

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 1986S00781 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 STARTER MOTOR, Unit of Measure EACH, Warranty 12 Months, Mount Hole Diameter 12.5, Overall Length 210mm, Power Rating 1.0kW, Suits Unit Make Bosch, New / Reman. New, Wet / Dry Clutch Dry, Packaging length 32.5.

Additional published details for cross-checking include Packaging height 13.9, Product Group 2 STARTER MOTORS, Part No. 1986S00781, Brand BOSCH, Description Bosch Starter Motor 12V 10Th CCW, Flange Diameter 76mm, Number of Teeth 10, Pinion at Rest 52.5mm, Rotation CCW.

Bosch Starter Motor 12V 10Th CCW. Part number 1986S00781 should be checked first. Listed voltage is 12. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986S00781, 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 starter motor in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include AUDI A3, AUDI A3 2003, AUDI A3 2004, AUDI A3 2005, SKODA OCTAVIA, SKODA OCTAVIA 2004. 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 compatibility using Bosch part number 1986S00781, the 12V / 1.0kW rating, 10 tooth CCW configuration, and the 2-hole mounting and measurement details before ordering.

FAQ

What is the part number for this Bosch starter motor?

The part number is 1986S00781. For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.

What voltage and power rating does it have?

It is a 12V starter motor with a 1.0kW power rating. For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The starter has a 10 tooth pinion. For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.

What is the rotation direction?

It is counter-clockwise (CCW). For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

This unit is listed as new. For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment references?

The supplied fitment references include Audi A3, Skoda Octavia, Volkswagen Golf, and Volkswagen Jetta applications, but final compatibility should still be confirmed against the part number and vehicle details. For this listing, part number 1986S00781 is the main reference point. Listed voltage is 12. Published fitment references include AUDI A3, AUDI A3 2003, AUDI A3 2004. These details should still be checked against the original unit before ordering.