Bosch Starter Motor 12V 1.1KW 11T CCW Part No. 1986S00791

This Bosch starter motor is a 12V rotating electrical unit with a 1.1kW power rating, 11 teeth, and CCW rotation. The part number is 1986S00791, and the unit is supplied as each with a 12-month warranty.

It has an overall length of 210mm, a 79mm flange diameter, 11.0mm mount hole diameter, and 2 mounting bores. Those dimensions matter when checking physical clearance and mounting match-up before purchase.

Key Features

• 12V starter motor
• 1.1kW power rating
• 11-tooth pinion
• CCW rotation
• 2 mounting bores
• 79mm flange diameter

Specifications

• Brand: Bosch
• Part No.: 1986S00791
• Product type: Starter motor
• Voltage: 12V
• Power rating: 1.1kW
• Rotation: CCW
• Number of teeth: 11
• Overall length: 210mm

Application and Buying Notes

Before ordering, confirm the part number 1986S00791 against the vehicle application and compare the physical details: 12V, 1.1kW, 11 teeth, CCW rotation, 210mm overall length, and 79mm flange diameter. Those are the practical checks that help narrow a starter match.

The mounting side also needs attention. This unit has 2 mounting bores and an 11.0mm mount hole diameter, so the bolt pattern and fastener sizing should be checked against the existing starter or the vehicle specification before fitment.

Rotation direction is critical on starters. This Bosch unit is CCW, so it should only be considered where the vehicle application calls for CCW rotation and an 11-tooth starter with a dry clutch arrangement.

The 12-month warranty gives a standard warranty period, but it does not replace fitment checking. A starter can look similar externally and still differ in tooth count, flange size, mounting bores, or pinion position, which is why the listed measurements should be matched carefully.

If you are comparing against a removed starter, the clearest identifiers are the Bosch branding, 1986S00791 part number, 12V rating, 1.1kW output, and the 11-tooth CCW configuration. Those details are the best starting point when confirming compatibility.

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 1986S00791 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 11.0, Overall Length 210mm, Power Rating 1.1kW, Voltage 12, Number of mounting bores 2, Packaging width 18, Manufactured in China.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. 1986S00791, Brand BOSCH, Description Bosch Starter Motor 12V 11Th CCW, Flange Diameter 79mm, Number of Teeth 11, Pinion at Rest 42mm, Rotation CCW, Wet / Dry Clutch Dry, Packaging length 32.5.

Bosch Starter Motor 12V 11Th CCW. Part number 1986S00791 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 1986S00791, 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.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

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 fitment using the part number 1986S00791 and the listed application details, including 12V, 1.1kW, 11 teeth, CCW rotation, 210mm overall length, 79mm flange diameter, and 2 mounting bores before ordering.

FAQ

What is the part number for this Bosch starter motor?

The part number is 1986S00791. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

It is a 12V starter motor. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What is the power rating?

The listed power rating is 1.1kW. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

It has 11 teeth. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What rotation does this starter motor use?

The rotation is CCW. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What warranty is supplied with this starter motor?

It comes with a 12-month warranty. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering. For this listing, part number 1986S00791 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.