Bosch Starter Motor 12V 10 Tooth CW Part No. 1986S00678

The Bosch Starter Motor 12V 10TH CW is a rotating electrical component supplied as each, with a 12 volt rating, clockwise rotation and 10 teeth on the pinion. It carries part no. 1986S00678 and OEM number A0061513701, so those identifiers should be matched carefully before ordering. A starter motor needs to suit the vehicle’s electrical system and mounting layout, not just the make name on the front cover.

This unit has 2 mounting bores and is listed as a Bosch starter motor with the description Bosch Starter Motor 12V 10TH CW. It is designed in fit and performance to meet OE starters and is built to withstand harsh environments, which is useful context for buyers who need a direct replacement-style part rather than a universal component. The packaging dimensions are 32.5 cm long, 18 cm wide and 13.9 cm high.

The starter motor is manufactured in China and is covered by a one year warranty. Those details do not change fitment, but they are important when comparing listings and checking what is being supplied. If you are replacing an existing starter, the safest approach is to verify the part number, OEM number, tooth count, rotation direction and mounting bore count against the unit already fitted to the vehicle.

Key Features

• 12 volt starter motor
• Clockwise rotation (CW)
• 10 tooth pinion
• 2 mounting bores
• Bosch branded rotating electrical part
• Listed part no. 1986S00678

Specifications

• Type: Starter motor
• Voltage: 12V
• Rotation: CW
• Number of teeth: 10
• Number of mounting bores: 2
• Unit of measure: Each
• Brand: Bosch
• Part No.: 1986S00678

Fitment guidance

• Fitment data indicates Mercedes-Benz applications.
• Mercedes-Benz model groups listed include C-Class, CLK, CLS, E-Class, G-Class, GL-Class, M-Class, R-Class, S-Class, SL, SLK, Valente, Viano and Vito / Mixto.
• Sample applications shown include Mercedes-Benz C-Class 2000, 2001, 2002 and other model year listings.
• Because the fitment list is broad, confirm the exact model, year and engine application against the vehicle and the original starter before ordering.

Application and Buying Notes

When comparing this Bosch starter motor to the part already on the vehicle, the most important checks are the 12V rating, clockwise rotation, 10 tooth count and 2 mounting bores. Those details must line up with the existing starter and the vehicle application. The supplied part no. 1986S00678 and OEM number A0061513701 are the strongest identifiers to use when cross-checking.

The listed fitment points to Mercedes-Benz applications across several model groups, but the model name alone is not enough to confirm suitability. A C-Class, CLK or E-Class can have different starting system requirements depending on year, engine and build. For that reason, the original starter should be inspected for its part number, tooth count, mounting arrangement and rotation direction before any replacement is fitted.

This starter is described as being designed in fit and performance to meet OE starters, which suggests replacement-style compatibility rather than a modified or upgraded design. That makes accurate matching more important, not less. If the original unit has the same 12V specification, CW rotation, 10 teeth and 2 mounting bores, the part number and OEM number should still be checked before purchase to avoid downtime.

Packaging size is also worth noting for receiving and storage, particularly if the part is being ordered for workshop use. The box measures 32.5 cm long, 18 cm wide and 13.9 cm high. While packaging does not determine fitment, it can help with freight planning and with checking that the correct item has arrived before the old starter is removed from the vehicle.

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 1986S00678 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, Rotation CW, OEM Number A0061513701, Packaging length 32.5, Packaging height 13.9, Product Group 2 STARTER MOTORS, Part No. 1986S00678.

Additional published details for cross-checking include Brand BOSCH, Description Bosch Starter Motor 12V 10TH CW, Number of Teeth 10, Voltage 12, Number of mounting bores 2, Packaging width 18, Manufactured in China, Product Group 1 ROTATING ELECTRICAL.

Bosch Starter Motor 12V 10TH CW. Part number 1986S00678 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 1986S00678, 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.

Compatibility note: Confirm fitment using the vehicle application, the original starter details, part no. 1986S00678 and OEM number A0061513701 before purchase. Do not rely on vehicle name alone, as starter motor fitment depends on tooth count, rotation, mounting arrangement and electrical specification.

FAQ

What is the voltage of this starter motor?

It is a 12 volt starter motor.

Which way does this starter rotate?

It is listed as clockwise rotation, shown as CW.

How many teeth does the pinion have?

The starter has 10 teeth.

What part number should I use when checking compatibility?

Use part no. 1986S00678 and also check OEM number A0061513701.

How many mounting bores are listed?

It has 2 mounting bores.

Which vehicles are shown in the fitment information?

The fitment information lists Mercedes-Benz applications, including C-Class, CLK, CLS, E-Class, G-Class, GL-Class, M-Class, R-Class, S-Class, SL, SLK, Valente, Viano and Vito / Mixto.