Bosch Starter Motor 12V 8 Tooth CW BXM003

The Bosch Starter Motor 12V 8 Tooth CW, part number BXM003, is a new starter motor supplied as each and listed for dry clutch applications. It is a 12 volt unit with clockwise rotation and a .9kW power rating, so the key electrical and mechanical identifiers are clear before ordering.

This starter uses a 3 hole mount pattern with mount centres of 110mm and 78mm, plus a flange diameter of 74mm. The pinion has 8 teeth, a 28mm pinion diameter, and sits 15mm at rest, which are important checks when matching to an existing starter motor.

Overall length is 198mm and the nose cone length is 52mm. The mount hole size is M10x1.5 / 12, and the unit is specified for Bosch applications under the rotating electrical group.

The listed features focus on durability and consistent starting performance: quality raw materials, corrosion resistance, and a reduction drive design. A one year warranty is also listed for this part.

Key Features

• New Bosch starter motor
• 12V, clockwise rotation
• 8 tooth pinion
• .9kW power rating
• 3 hole mount type
• Corrosion resistant construction

Specifications

• Part number: BXM003
• Brand: Bosch
• Product type: Starter motor
• Voltage: 12V
• Rotation: CW
• Power rating: .9kW
• Number of teeth: 8
• Pinion diameter: 28mm

Application and Buying Notes

Before ordering, compare the part number BXM003 with the starter already fitted to the vehicle or removed for inspection. The critical match points on this Bosch starter are 12V voltage, clockwise rotation, 8 tooth pinion, and the 3 hole mount pattern with 110mm and 78mm mount centres.

The physical dimensions are also worth checking carefully. Overall length is 198mm, nose cone length is 52mm, flange diameter is 74mm, and the pinion diameter is 28mm. If any of those dimensions differ from the existing unit, fitment may not be correct even if the starter looks similar at a glance.

This starter is listed for dry clutch applications and has a pinion at rest measurement of 15mm. That matters when comparing spacing and engagement characteristics, particularly where starter clearance is tight or where the original unit has a specific nose cone depth.

The stated mount hole diameter is M10x1.5 / 12, which should be checked against the vehicle side mounting hardware and the removed starter. As with any starter motor, the safest purchase is one made against the exact application details and the identified part number, rather than appearance alone.

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 BXM003 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 110mm, Mount Centres C 78mm, Nose Cone Length 52mm, Overall Length 198mm, Pinion Diameter 28mm, Rotation CW, Voltage 12.

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Dry, Product Group 1 ROTATING ELECTRICAL, Part No. BXM003, Brand BOSCH, Description Bosch Starter Motor 12V 8Th CW, Flange Diameter 74mm, Mount Centres B 78mm, Mount Hole Diameter M10x1.5 / 12, Number of Teeth 8.

Bosch Starter Motor 12V 8Th CW. Part number BXM003 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 BXM003, 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.

Compatibility note: Confirm fitment by matching the part number BXM003, 12V specification, clockwise rotation, 8 tooth pinion, and the listed mounting and dimensional details against the existing starter motor before purchase.

FAQ

What is the part number for this Bosch starter motor?

The listed part number is BXM003. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

Is this starter motor new or remanufactured?

It is listed as new. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What voltage and rotation does it have?

It is a 12V starter motor with clockwise (CW) rotation. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The pinion has 8 teeth and a pinion diameter of 28mm. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What mounting details are listed?

It has a 3 hole starter mount type, mount centres of 110mm and 78mm, a flange diameter of 74mm, and a mount hole diameter of M10x1.5 / 12. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.

What warranty is listed?

A one year warranty is listed for this starter motor. For this listing, part number BXM003 is the main reference point. Listed voltage is 12. These details should still be checked against the original unit before ordering.