Bosch Starter Motor 12V 9 Tooth CW 1.7KW Part No. 1986S00831

This Bosch starter motor is a 12V, clockwise-rotation unit with 9 teeth and a 1.7kW power rating. It is listed as a new, original equipment part and carries part number 1986S00831. For buyers matching an existing starter, the main checks here are the 2-hole starter mount type, 100mm mount centres, 77mm flange diameter and M10x1.25 mount hole size.

The unit measures 230mm overall length, has a 29mm pinion diameter and a 21mm pinion at rest. Those dimensions matter when replacing a starter motor, because the mounting pattern, pinion position and housing size all need to align with the vehicle application. The starter is packaged as each and supplied by Bosch.

Fitment information is listed against Hyundai and Kia applications, including Hyundai i20, Hyundai i30, Hyundai Veloster, Kia Cee'd, Kia Rio and Kia Soul references in the supplied application data. Exact model, year and engine matching should still be checked carefully against the part number and the physical specifications before ordering.

Key Features

• Bosch starter motor
• 12V electrical system
• 9 tooth pinion
• Clockwise rotation (CW)
• 1.7kW power rating
• New original equipment part

Specifications

• Type: Starter motor
• Brand: Bosch
• Part No.: 1986S00831
• Voltage: 12V
• Rotation: CW
• Number of teeth: 9
• Power rating: 1.7kW
• Mount centres A: 100mm

Application Guidance

• Hyundai i20 applications are listed in the supplied fitment data
• Hyundai i30 applications are listed in the supplied fitment data
• Hyundai Veloster applications are listed in the supplied fitment data
• Kia Cee'd applications are listed in the supplied fitment data
• Kia Rio applications are listed in the supplied fitment data
• Kia Soul applications are listed in the supplied fitment data

Application and Buying Notes

When replacing a starter motor, the safest approach is to match the part number 1986S00831 first, then confirm the physical details: 12V, clockwise rotation, 9 teeth, 2-hole mount, 100mm mount centres and M10x1.25 mounting holes. Those are the key identifiers that help separate similar-looking starters from different applications.

The 1.7kW power rating and 77mm flange diameter are useful checks if you are comparing against a removed unit or another listing. If the old starter has a different tooth count, different rotation direction, or a different mount pattern, it should not be treated as a direct match.

The supplied application data references Hyundai i20, Hyundai i30, Hyundai Veloster, Kia Cee'd, Kia Rio and Kia Soul variants, but vehicle model names alone are not enough to confirm compatibility. Use the part number, the mounting dimensions and the existing unit details together before purchase.

Because starter fitment can vary within the same model range, it is worth comparing the old unit’s overall length of 230mm, pinion diameter of 29mm and pinion at rest of 21mm with the replacement. If anything differs, confirm the application with your vehicle details 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 1986S00831 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 One Year, Mount Centres A 100mm, Number of Teeth 9, Pinion at Rest 21mm, Power Rating 1.7kW, Suits Unit Make Bosch, New / Reman. New, Number of mounting bores 2.

Additional published details for cross-checking include Packaging width 18, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986S00831, Brand BOSCH, Description Bosch Starter Motor 12V 9Th CW, Flange Diameter 77mm, Mount Hole Diameter M10x1.25, Overall Length 230mm, Pinion Diameter 29mm.

Bosch Starter Motor 12V 9Th CW. Part number 1986S00831 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 1986S00831, 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 HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009, HYUNDAI I20 2010, KIA CEE'D, KIA CEE'D 2007. 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 fitment by matching part number 1986S00831 and checking the 12V, 9 tooth, CW, 2-hole mounting and listed dimensions against your existing starter motor and vehicle application.

FAQ

What is the part number for this starter motor?

The part number is 1986S00831. For this listing, part number 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. 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 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. 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 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. These details should still be checked against the original unit before ordering.

What rotation does this starter motor use?

It is clockwise rotation, listed as CW. For this listing, part number 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as a new starter motor. For this listing, part number 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. These details should still be checked against the original unit before ordering.

What should I check before ordering?

Confirm part number 1986S00831, 12V voltage, 9 tooth pinion, CW rotation, 2-hole mounting, 100mm mount centres and the listed dimensions against your existing unit and vehicle application. For this listing, part number 1986S00831 is the main reference point. Listed voltage is 12. Published fitment references include HYUNDAI I20, HYUNDAI I20 2008, HYUNDAI I20 2009. These details should still be checked against the original unit before ordering.