Bosch Starter Motor 12V 1.2KW 9 Tooth CW Part No. 1986S00686

The Bosch starter motor listed here is a 12V unit with a 1.2kW power rating, 9 teeth, clockwise rotation, and part number 1986S00686. It is a new starter motor, not remanufactured, and it uses a stud terminal for the start connection.

It has a 76mm flange diameter, a 2-hole starter mount type, and a specified mount hole diameter of M10x1.5 / 11. The pinion at rest is 25.5mm, and the pinion diameter is 29mm, which are useful checks when comparing against the original starter on the vehicle.

This Bosch starter motor is described as a dry clutch unit and is manufactured in Hungary. It is supplied as an individual piece, with a listed weight of 3.020kg and packaging dimensions of 28.8 x 16.7 x 12, giving you a practical reference for handling and storage before installation.

Key Features

• 12V starter motor
• 1.2kW power rating
• 9 tooth pinion
• Clockwise rotation
• Stud terminal start connection
• 2-hole starter mount

Specifications

• Brand: Bosch
• Part No.: 1986S00686
• Product type: Starter motor
• Voltage: 12V
• Power rating: 1.2kW
• Rotation: CW
• Number of teeth: 9
• Starter mount type: 2 hole

Fitment notes

• Fitment data supplied includes BMW applications, with grouped preview references for BMW 1, BMW 3, BMW X1, and BMW X3.
• The fitment preview includes BMW 1 application entries from 2004 through 2013.
• Because the full application list is not shown here, confirm the vehicle by matching the part number, tooth count, rotation, terminal type, and mounting arrangement before ordering.

Application and Buying Notes

When comparing this Bosch starter motor to the one being replaced, start with the part number 1986S00686 and then confirm the physical details: 12V system voltage, 1.2kW output, 9 teeth, clockwise rotation, and a 2-hole mount. These points matter because starter motors must match the electrical setup and the mounting pattern closely for a proper replacement.

The starter uses a stud terminal for the start connection, a 76mm flange diameter, and mounting bores listed as M10x1.5 / 11. The pinion at rest is 25.5mm and the pinion diameter is 29mm, so if the original unit differs in these areas it should be checked carefully before purchase or installation.

This is a new Bosch starter motor with a 12-month warranty and it is listed as a dry clutch unit. The weight is 3.020kg and the unit is manufactured in Hungary. Those details are useful when matching a replacement and when confirming the correct part has arrived before fitting begins.

For BMW applications mentioned in the fitment preview, do not rely on model name alone. Compare the vehicle’s original starter specifications, connection type, tooth count, rotation, and mounting arrangement against this unit, then verify the application by part number wherever possible. That is the safest approach when replacing a rotating electrical component.

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 1986S00686 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 M10x1.5 / 11, Pinion at Rest 25.5mm, Power Rating 1.2kW, Voltage 12, New / Reman. New, Wet / Dry Clutch Dry, Packaging length 28.8.

Additional published details for cross-checking include Packaging height 12, Weight 3.020kg, Product Group 1 ROTATING ELECTRICAL, Part No. 1986S00686, Brand BOSCH, Description Bosch Starter Motor 12V 9Th CW, Flange Diameter 76mm, Number of Teeth 9, Pinion Diameter 29mm, Rotation CW.

Bosch Starter Motor 12V 9Th CW. Part number 1986S00686 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 1986S00686, 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 compatibility by matching the part number 1986S00686 and checking voltage, tooth count, rotation, terminal type, and mounting details against the vehicle’s original starter motor before ordering or fitting.

FAQ

What type of part is this?

It is a Bosch starter motor, listed as a new 12V unit with a 1.2kW power rating and part number 1986S00686. For this listing, part number 1986S00686 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 have?

This starter motor is clockwise rotation, shown as CW. For this listing, part number 1986S00686 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 1986S00686 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 terminal type does it use?

The start terminal is a stud terminal. For this listing, part number 1986S00686 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?

The listed warranty is 12 months. For this listing, part number 1986S00686 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.

Which vehicles are shown in the fitment preview?

The fitment preview references BMW applications, including BMW 1, BMW 3, BMW X1, and BMW X3, with BMW 1 entries shown from 2004 through 2013. For this listing, part number 1986S00686 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.