Bosch Starter Motor 12V 9 Tooth CCW 1.1KW 1986S00661

This Bosch starter motor is a 12V unit with 9 teeth, counter-clockwise rotation, and a 1.1kW power rating. It is listed under part number 1986S00661 and is supplied as a single each unit, with a 12-month warranty.

Key physical details include a 76mm flange diameter, 105mm mount centres, two mounting bores, and 10.5mm mount hole diameter. The overall length is 216mm, with a 29mm pinion at rest and 29mm pinion diameter, so matching the starter layout against the vehicle’s existing unit is important before ordering.

This Bosch starter motor is described as a dry type and is manufactured in Hungary. The listed features say it is designed to withstand harsh environments, designed in fit and performance to meet OE starters, and intended to deliver premium starting performance.

Key Features

• 12V starter motor
• 9-tooth pinion
• Counter-clockwise rotation
• 1.1kW power rating
• Dry type starter
• Two-hole starter mount

Specifications

• Brand: Bosch
• Product type: Starter motor
• Voltage: 12V
• Power rating: 1.1kW
• Rotation: CCW
• Number of teeth: 9
• Starter mount type: 2 hole
• Number of mounting bores: 2

Known application references

• Ammann ARR 1585
• Hatz 2G40
• JCB-Vibromax VMT170
• Lombardini 520M
• Ruggerini RF121
• Ruggerini RF130
• Ruggerini RF81
• Terex O&K TV1400-1

Application and Buying Notes

Before buying, compare the part number 1986S00661, the 12V electrical system, and the 9-tooth CCW configuration with the starter currently fitted to the machine. The key mounting checks are the 105mm mount centres, 76mm flange diameter, 10.5mm mount hole diameter, and the two-hole starter mount layout.

The overall length is 216mm and the pinion at rest is 29mm, so physical clearance matters as much as the electrical specification. If the replacement unit differs in mount pattern, pinion position, or rotation, it may not suit the application even where the brand name looks similar.

The listed fitment references cover equipment from Ammann, Hatz, JCB-Vibromax, Lombardini, Ruggerini, and Terex O&K, but those names alone are not enough to confirm suitability. Check the exact model, year where shown, and the existing starter details against this Bosch unit before purchase.

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 1986S00661 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 29mm, Power Rating 1.1kW, Voltage 12, Wet / Dry Clutch Dry, Packaging length 28.8.

Additional published details for cross-checking include Packaging height 12, Weight 2.9kg, Product Group 1 ROTATING ELECTRICAL, Part No. 1986S00661, Brand BOSCH, Description Bosch Starter Motor 12V 9Th CCW, Flange Diameter 76mm, Mount Hole Diameter 10.5, Overall Length 216mm, Pinion Diameter 29mm.

Bosch Starter Motor 12V 9Th CCW. Part number 1986S00661 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 1986S00661, 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 AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40, HATZ 2G40 1989, JCB-VIBROMAX VMT170, JCB-VIBROMAX VMT170 2008. 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.

The listed warranty is 12 Months. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm fitment by matching Bosch part number 1986S00661 and the listed application details, along with the 12V, 9-tooth, CCW mounting and dimensional specifications, before ordering.

FAQ

What is the part number for this starter motor?

The listed Bosch part number is 1986S00661. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.

Is this starter motor 12V?

Yes. The voltage is listed as 12V. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

It is listed with 9 teeth. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.

What direction does this starter rotate?

The rotation is CCW, which means counter-clockwise. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.

What mounting details are listed for this starter?

The starter has a 2-hole mount, 2 mounting bores, 105mm mount centres, a 76mm flange diameter, and 10.5mm mount hole diameter. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.

Which applications are referenced for this starter motor?

Referenced applications include Ammann ARR 1585, Hatz 2G40, JCB-Vibromax VMT170, Lombardini 520M, Ruggerini RF121, Ruggerini RF130, Ruggerini RF81, and Terex O&K TV1400-1. For this listing, part number 1986S00661 is the main reference point. Listed voltage is 12. Published fitment references include AMMANN ARR 1585, AMMANN ARR 1585 2018, HATZ 2G40. These details should still be checked against the original unit before ordering.