OEX Starter Motor 24V 11 Tooth CW Bosch Style BXS9053

The OEX Starter Motor BXS9053 is a new 24V unit with clockwise rotation, 11 teeth, and a 4kW power rating. It is described as Bosch style and suits Bosch applications, so the key checks are the 24V system, CW rotation, and the mounting dimensions before ordering.

This starter motor uses a 3 hole starter mount type, with mount centres of 127mm and 90mm, a flange diameter of 89mm, and mount hole diameter of 11mm. Overall length is 315mm, with a 40mm pinion diameter and 49mm pinion at rest, which gives you useful reference points when matching to the existing unit.

It is a new rotating electrical component, supplied as each, and listed at 8.32kg. OEX states its products are sourced from market leading original equipment manufacturers and aftermarket suppliers, from ISO certified factories, and backed by a comprehensive nationwide warranty.

The stated warranty is 3 years for passenger use and 1 year for commercial use. If you are replacing an existing starter, matching part number BXS9053 and checking the physical dimensions is the safest way to confirm you have the correct unit.

Key Features

• 24V starter motor
• Clockwise rotation
• 11 tooth pinion
• 4kW power rating
• Bosch style, suits Bosch applications
• 3 hole starter mount

Specifications

• Part number: BXS9053
• Brand: OEX
• Product type: Starter motor
• Voltage: 24V
• Rotation: CW
• Number of teeth: 11
• Power rating: 4kW
• Starter mount type: 3 hole

Fitment guidance

• Listed applications include Volvo B57, Volvo B6, Volvo B7, Volvo BB57, Volvo F7, Volvo FL6, and Volvo Marine/Penta, including Volvo Marine/Penta TD60.
• Sample application references provided include Volvo B57 1970 and Volvo B6 1991.
• Fitment should still be checked against the part number BXS9053, voltage, rotation, tooth count, mount centres, and overall dimensions before purchase.

Application and Buying Notes

A starter motor needs to match more than just the vehicle make. For this unit, the important checkpoints are 24V electrical system, clockwise rotation, 11 teeth, 3 hole mount type, and the listed physical dimensions of 315mm overall length and 89mm flange diameter. Those details help confirm whether BXS9053 is a suitable replacement for the existing starter on the vehicle or engine.

The supplied fitment information points to Volvo and Volvo Marine/Penta applications, including Volvo B57, B6, B7, BB57, F7, FL6, and Volvo Marine/Penta TD60. That is useful guidance, but starter fitment can still vary by engine, year, or existing assembly, so the safest approach is to compare the removed unit against the specifications listed here.

Mount centres are especially important when replacing a starter motor. This unit lists mount centres A at 127mm and mount centres B and C at 90mm, with an 11mm mount hole diameter. If your old starter differs at these points, it may not line up correctly even if the unit looks similar from the outside.

The 4kW power rating, 40mm pinion diameter, and 49mm pinion at rest are also practical checks. They do not replace vehicle confirmation, but they help verify that the replacement matches the original assembly rather than relying on appearance alone. If you are working on a commercial application, keep the warranty split in mind: 1 year for commercial use and 3 years for passenger use.

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 BXS9053 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 3yr Passenger 1yr Commercial, Mount Centres A 127mm, Mount Centres C 90mm, Number of Teeth 11, Pinion at Rest 49mm, Power Rating 4kW, Suits Unit Make Bosch, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Weight 8.32kg, Product Group 1 ROTATING ELECTRICAL, Part No. BXS9053, Brand OEX, Description OEX Starter Motor 24V 11Th CW Bosch Style, Flange Diameter 89mm, Mount Centres B 90mm, Mount Hole Diameter 11, Overall Length 315mm.

OEX Starter Motor 24V 11Th CW Bosch Style. Part number BXS9053 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 BXS9053, 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 VOLVO B57, VOLVO B57 1970, VOLVO B6, VOLVO B6 1991. 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 3yr Passenger 1yr Commercial. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm fitment with part number BXS9053 and the listed application details, including 24V, CW rotation, 11 teeth, 3 hole mounting, and the stated dimensions before ordering.

FAQ

What is the part number for this starter motor?

The part number is BXS9053.

Is this a 12V or 24V starter motor?

It is a 24V starter motor.

What rotation does this starter motor have?

It is clockwise rotation, listed as CW.

How many teeth does the pinion have?

The pinion has 11 teeth.

Which vehicles are listed as applications?

Listed applications include Volvo B57, Volvo B6, Volvo B7, Volvo BB57, Volvo F7, Volvo FL6, and Volvo Marine/Penta, including Volvo Marine/Penta TD60.

What warranty applies to this unit?

The stated warranty is 3 years for passenger use and 1 year for commercial use.