Bosch Starter Motor 12V 12 Tooth CW 2.5KW Part No. 1986S00841

This Bosch starter motor is a new 12V unit with clockwise rotation, a 12 tooth pinion, and a 2.5kW power rating. It is listed as part number 1986S00841 and uses a pad style starter mount with 2 mounting bores, so matching the mounting arrangement is just as important as matching voltage and rotation.

The overall length is 255mm, the mount hole diameter is 10mm, and the mount centres are 89mm. Those measurements matter when you are comparing a replacement starter, because the physical pattern needs to suit the vehicle’s starter location as well as the electrical and drive specifications.

This unit is described as an original equipment part and is supplied new, not remanufactured. It is a Bosch starter motor made in China, sold individually as each, and covered by a one year warranty. If you are replacing a failed starter, the safest approach is to confirm the part number, tooth count, pinion dimensions, and mounting details before ordering.

Key Features

• New Bosch starter motor
• Original Equipment part
• 12V clockwise rotation
• 12 tooth pinion
• 2.5kW power rating
• Pad mount style

Specifications

• Brand: Bosch
• Part No.: 1986S00841
• Type: Starter motor
• Voltage: 12V
• Rotation: CW
• Power rating: 2.5kW
• Number of teeth: 12
• Starter mount type: Pad

Application and Buying Notes

When comparing this starter motor to the one being replaced, the most useful checkpoints are the part number 1986S00841, 12V system voltage, clockwise rotation, and the 12 tooth pinion. Those details need to line up with the vehicle application, because a starter can look similar while still having a different drive or mounting pattern.

The mounting dimensions are also important. This unit uses a pad mount with 2 mounting bores, 89mm mount centres, and a 10mm mount hole diameter. The overall length is 255mm, the pinion diameter is 39mm, and the pinion at rest measures 35.4mm. These figures help confirm that the starter will physically sit and engage correctly in the intended position.

Because no vehicle make, model, or engine application is provided here, the safest buying method is to match the Bosch part number, the mounting style, and the drive specifications exactly. If you are unsure, remove the old starter and check the tag, the mounting pattern, and the pinion details side by side with this listing before ordering.

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 1986S00841 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 Hole Diameter 10, Overall Length 255mm, Pinion Diameter 39mm, Rotation CW, Voltage 12, Starter Mount Type Pad, Packaging length 32.5.

Additional published details for cross-checking include Packaging height 13.9, Product Group 2 STARTER MOTORS, Part No. 1986S00841, Brand BOSCH, Description Bosch Starter Motor 12V 12Th CW, Mount Centres A 89mm, Number of Teeth 12, Pinion at Rest 35.4mm, Power Rating 2.5kW.

Bosch Starter Motor 12V 12Th CW. Part number 1986S00841 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 1986S00841, 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.

Compatibility note: Confirm compatibility by comparing part number 1986S00841, 12V clockwise rotation, 12 tooth pinion, pad mount style, and the listed mounting dimensions against the original unit or vehicle application details before purchase.

FAQ

What type of starter motor is this?

It is a Bosch starter motor, listed as a 12V unit with clockwise rotation, a 12 tooth pinion, and a 2.5kW power rating. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What is the part number?

The part number listed is 1986S00841. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

Is this starter new or remanufactured?

It is listed as new, not remanufactured. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What mounting style does it use?

It uses a pad starter mount type, with 2 mounting bores and 89mm mount centres. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What are the key physical measurements?

The listed measurements include an overall length of 255mm, a mount hole diameter of 10mm, a pinion diameter of 39mm, and a pinion at rest of 35.4mm. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

Does the listing include vehicle fitment?

No vehicle makes or models are provided here. Fitment should be confirmed by matching the part number, voltage, rotation, tooth count, and mounting dimensions to the original starter or application details. For this listing, part number 1986S00841 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.