Bosch Starter Motor 24V 9 Tooth CW 4.0KW 1986S10050

This Bosch starter motor is a new 24V unit with a 4.0kW power rating, 9 teeth on the pinion, and clockwise rotation. It is identified by part number 1986S10050 and is listed as a 3-hole starter mount type, which makes the physical mounting pattern an important check before ordering.

The key dimensions supplied for this starter are a 320mm overall length, 89mm flange diameter, 34mm pinion diameter, 28mm pinion at rest, and mounting centres of 126mm for Mount Centres A, 90mm for Mount Centres B, and 90mm for Mount Centres C. The mounting bores are 11mm, and the unit is listed with 3 mounting bores.

This Bosch starter motor is described as being designed in fit and performance to meet OE starters, with premium starting performance and construction intended to withstand harsh environments. It is supplied new, comes with a 12 month warranty, and is part of the rotating electrical group.

Key Features

• 24V Bosch starter motor
• 9 tooth pinion
• Clockwise rotation
• 4.0kW power rating
• 3-hole starter mount type
• New unit with 12 month warranty

Specifications

• Brand: Bosch
• Part number: 1986S10050
• Product type: Starter motor
• Voltage: 24V
• Power rating: 4.0kW
• Rotation: CW
• Number of teeth: 9
• Starter mount type: 3 hole

Verified fitment references

• DEUTZ
• DEUTZ BF6L912
• DEUTZ BF6M2012C
• DEUTZ F5L912F
• DEUTZ F6L912
• DEUTZ F6L913

Application and Buying Notes

When matching this starter motor, check the part number 1986S10050 first, then confirm the electrical and mounting details against the vehicle or original unit. The important physical checks here are 24V operation, 4.0kW output, 9 tooth pinion, clockwise rotation, and the 3-hole mounting pattern with 11mm mounting bores.

The listed dimensions matter just as much as the electrical specification. Measure the 126mm Mount Centres A, the 90mm Mount Centres B and C, the 89mm flange diameter, and the 320mm overall length before fitting. If the replacement unit differs in any of these areas, the starter may not align correctly even if the bolt pattern looks close.

This starter is shown against DEUTZ applications including BF6L912, BF6M2012C, F5L912F, F6L912, and F6L913, but those references should still be checked against the specific engine build and the original starter on the machine. DEUTZ listings can vary by year and configuration, so the safest approach is to compare the existing unit, the part number, and the mounting dimensions together.

The product is a Bosch unit and is listed as new, which is useful if you are replacing a worn starter in a 24V system where reliability and consistent cranking performance matter. The supplied features note that it is built for harsh environments and designed to meet OE fit and performance, but the final call on compatibility still rests on the application and measurements in your vehicle or equipment.

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 1986S10050 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 126mm, Mount Centres C 90mm, Number of Teeth 9, Pinion at Rest 28mm, Power Rating 4.0kW, Suits Unit Make Bosch, New / Reman. New.

Additional published details for cross-checking include Number of mounting bores 3, Packaging width 16, Manufactured in China, Product Group 1 ROTATING ELECTRICAL, Part No. 1986S10050, Brand BOSCH, Description Bosch Starter Motor 24V 9Th CW, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 11.

Bosch Starter Motor 24V 9Th CW. Part number 1986S10050 should be checked first. Listed voltage is 24. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 1986S10050, 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 24 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C, DEUTZ BF6M2012C 1992. 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 fitment by matching part number 1986S10050, 24V system requirement, 9 tooth clockwise rotation, 3-hole mounting pattern, and the listed dimensions before purchase. If your original starter or application details differ, do not assume compatibility.

FAQ

What is the voltage of this starter motor?

It is a 24V starter motor. For this listing, part number 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. These details should still be checked against the original unit before ordering.

What is the part number?

The part number is 1986S10050. For this listing, part number 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. 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 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. These details should still be checked against the original unit before ordering.

What is the rotation direction?

The rotation is clockwise (CW). For this listing, part number 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. These details should still be checked against the original unit before ordering.

Is this starter new or remanufactured?

It is listed as new. For this listing, part number 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. These details should still be checked against the original unit before ordering.

Which fitment references are provided?

The supplied fitment references include DEUTZ, DEUTZ BF6L912, DEUTZ BF6M2012C, DEUTZ F5L912F, DEUTZ F6L912, and DEUTZ F6L913. These should still be confirmed against the exact application and the original starter dimensions. For this listing, part number 1986S10050 is the main reference point. Listed voltage is 24. Published fitment references include DEUTZ BF6L912, DEUTZ BF6L912 1969, DEUTZ BF6M2012C. These details should still be checked against the original unit before ordering.