Bosch Starter Motor 12V 9-TOOTH CW Part No. 1986S00764

The Bosch starter motor listed here is a 12V unit with a 9-tooth pinion, clockwise rotation, and a 1.8kW power rating. It is identified by part number 1986S00764 and is supplied as a starter motor for rotating electrical applications.

Key dimensions include a 230mm overall length, 74mm flange diameter, 105mm mount centres, and M10x1.5 mount hole diameter. The pinion diameter is 29mm and the pinion at rest measurement is 21mm, which are important checks when matching a replacement starter.

This unit uses a dry clutch setup and a 2-hole starter mount with 2 mounting bores. Bosch notes it is designed in fit and performance to meet OE starters, with premium starting performance and construction intended to withstand harsh environments.

A 12-month warranty is listed for this starter motor. It is manufactured in China and sold as each unit, so it is best matched against the vehicle application and the physical starter details before ordering.

Key Features

• 12V Bosch starter motor
• 9-tooth pinion
• Clockwise rotation (CW)
• 1.8kW power rating
• 2-hole starter mount
• Dry clutch design

Specifications

• Part No.: 1986S00764
• Brand: Bosch
• Product type: Starter motor
• Voltage: 12V
• Power rating: 1.8kW
• Rotation: CW
• Number of teeth: 9
• Starter mount type: 2 hole

Known application details

• BMW 1 series applications are listed in the supplied fitment data, including model years 2004 to 2010.
• BMW 3 series applications are listed in the supplied fitment data, including model years 2004 to 2010.
• BMW 5 series applications are listed in the supplied fitment data.
• BMW X3 applications are listed in the supplied fitment data.
• BMW X5 applications are listed in the supplied fitment data.
• BMW X6 applications are listed in the supplied fitment data.

Application and Buying Notes

Before ordering, match the part number 1986S00764 and compare the starter’s physical measurements with the unit being replaced. The important checkpoints here include 12V, 9 teeth, CW rotation, 1.8kW output, 105mm mount centres, and the 74mm flange diameter.

The mounting style is a 2-hole starter with M10x1.5 mount holes and 2 mounting bores. Those details matter just as much as the electrical rating, because a starter can be close in specification but still not suit the mounting pattern on the vehicle.

The pinion at rest measurement of 21mm and pinion diameter of 29mm are useful reference points when checking clearance and engagement style. If the vehicle originally used a dry-clutch starter, that also needs to align with this unit.

Bosch states this starter is designed in fit and performance to meet OE starters, but the correct application still needs to be confirmed against the vehicle and the removed part. That is especially important where BMW fitment spans multiple series and model years in the application data.

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 1986S00764 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 Centres A 105mm, Number of Teeth 9, Pinion at Rest 21mm, Power Rating 1.8kW, Voltage 12, 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. 1986S00764, Brand BOSCH, Description Bosch Starter Motor 12V 9Th CW, Flange Diameter 74mm, Mount Hole Diameter M10x1.5, Overall Length 230mm, Pinion Diameter 29mm.

Bosch Starter Motor 12V 9Th CW. Part number 1986S00764 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 1986S00764, 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 BMW 1, BMW 1 2004, BMW 1 2005, BMW 1 2006. 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 fitment using part number 1986S00764, the 12V 9-tooth CW specification, and the mounting and dimensional details before purchase. Where vehicle application data is available, compare it carefully with the starter fitted to the vehicle.

FAQ

What is the part number for this starter motor?

The part number listed is 1986S00764. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.

Is this a 12V starter motor?

Yes. The listed voltage is 12V. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.

What rotation does this starter motor have?

It is clockwise rotation, shown as CW. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The pinion has 9 teeth. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.

What mounting style does it use?

It uses a 2-hole starter mount with 2 mounting bores and M10x1.5 mount holes. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.

What warranty is listed?

A 12-month warranty is listed for this starter motor. For this listing, part number 1986S00764 is the main reference point. Listed voltage is 12. Published fitment references include BMW 1, BMW 1 2004, BMW 1 2005. These details should still be checked against the original unit before ordering.