Bosch Starter Motor 12V 10 Tooth CW 2.2KW Part No. 1986S00728

The Bosch starter motor listed here is a 12V unit with a 2.2kW power rating, 10 teeth, and clockwise rotation (CW). It is identified by part number 1986S00728 and is supplied as a starter motor in each quantity, with a 12-month warranty.

Key physical details include a 246mm overall length, 76mm flange diameter, M10 mount hole diameter, and 2 mounting bores. The pinion at rest measures 25mm, and the unit is noted as a dry clutch starter. These dimensions matter when matching the starter to the vehicle application and existing fitment.

Bosch describes this starter as being designed in fit and performance to meet OE starters, with premium starting performance and construction intended to withstand harsh environments. Manufactured in Hungary, it sits in the rotating electrical product group and is intended for buyers who want a direct comparison point against the original starter specification rather than guessing by appearance alone.

Key Features

• 12V starter motor
• 2.2kW power rating
• 10-tooth pinion
• Clockwise rotation (CW)
• 2 mounting bores
• M10 mount hole diameter

Specifications

• Brand: Bosch
• Part number: 1986S00728
• Type: Starter motor
• Voltage: 12V
• Power rating: 2.2kW
• Number of teeth: 10
• Rotation: CW
• Overall length: 246mm

Fitment guidance

• Fitment information supplied includes Audi applications, with previewed listings covering Audi A6 Allroad and Audi A8 variants across multiple model years.
• Audi A6 Allroad applications shown in the fitment preview include 2008, 2009, 2010, and 2011.
• Audi A8 applications shown in the fitment preview include 2003 through 2008.
• Fitment must still be checked against the vehicle’s existing starter, part number, and application details before purchase.

Application and Buying Notes

When comparing this Bosch starter to your existing unit, confirm the part number 1986S00728, the 12V electrical system, and the 10-tooth clockwise configuration before ordering. The 2.2kW power rating and the 246mm overall length are important checks, especially where a replacement starter needs to match the original layout closely.

The mounting side details are also worth verifying. This starter uses an M10 mount hole diameter, 2 mounting bores, and a 76mm flange diameter, so the physical fit needs to align with the vehicle’s mounting arrangement rather than relying on brand name alone. The 25mm pinion at rest and dry clutch design are additional points to compare with the removed unit.

If the vehicle has been modified, or if a previous repair has introduced a different starter, matching by shape alone is not enough. A Bosch starter with OE-style fit and performance can still be the wrong part if the tooth count, rotation direction, flange size, or mounting bore pattern differs from the original application. Checking these details against the current starter is the safest approach.

This unit is sold as each and comes with a 12-month warranty. Manufactured in Hungary, it is a Bosch rotating electrical component intended for buyers who want a specified replacement rather than a universal fitment guess. Where the vehicle is listed across several Audi applications, the safest method is to verify the exact variant against the part number and the installed starter 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 1986S00728 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 M10, Overall Length 246mm, Power Rating 2.2kW, Voltage 12, Number of mounting bores 2, Packaging width 16.7, Manufactured in Hungary.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. 1986S00728, Brand BOSCH, Description Bosch Starter 12V 10Th CW, Flange Diameter 76mm, Number of Teeth 10, Pinion at Rest 25mm, Rotation CW, Wet / Dry Clutch Dry, Packaging length 28.8.

Bosch Starter 12V 10Th CW. Part number 1986S00728 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 1986S00728, 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 A6 ALLROAD, AUDI A6 ALLROAD 2008, AUDI A6 ALLROAD 2009, AUDI A6 ALLROAD 2010. 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.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm compatibility using part number 1986S00728, the 12V system requirement, 10-tooth CW configuration, and the physical dimensions before ordering. Fitment should always be checked against the vehicle application and the starter currently fitted.

FAQ

What is the part number for this Bosch starter motor?

The part number is 1986S00728.

What voltage does this starter use?

It is a 12V starter motor.

How many teeth does the pinion have?

The pinion has 10 teeth.

What is the rotation direction?

The starter is clockwise rotation, shown as CW.

What are the main mounting dimensions?

It has a 76mm flange diameter, M10 mount hole diameter, and 2 mounting bores.

Which vehicle applications are shown in the fitment information?

The fitment preview includes Audi A6 Allroad and Audi A8 applications across multiple model years, including Audi A6 Allroad 2008 to 2011 and Audi A8 2003 to 2008.