Mahle Starter Motor 12V 11 Tooth CW MS309

This Mahle starter motor is a new 12V unit with 11 teeth, clockwise rotation, and a 3kW power rating. It is listed under part number MS309 and uses a 3 hole starter mount, which gives you a clear set of identifiers to check before ordering.

The main mounting dimensions provided are 127mm mount centres A, 90mm mount centres B, and 90mm mount centres C, with a 89mm flange diameter and 11mm mount hole diameter. Overall length is 338mm, pinion at rest is 48mm, and the pinion diameter is 41mm.

It is described as suitable for Mahle units and is listed for Zetor applications in the supplied fitment data, including Zetor 8011, 8045, 8145, 10045, 10111, 10211, and 10245. If you are replacing an existing starter, match the part number MS309 and compare the mounting and drive details carefully before purchase.

Key Features

• 12V new starter motor
• 11 tooth pinion
• Clockwise rotation
• 3kW power rating
• 3 hole starter mount
• Part number MS309

Specifications

• Brand: Mahle
• Product type: Starter motor
• Voltage: 12V
• Power rating: 3kW
• Rotation: CW
• Number of teeth: 11
• Starter mount type: 3 hole
• Number of mounting bores: 3

Known applications supplied with this part

• Zetor 8011
• Zetor 8045
• Zetor 8145
• Zetor 10045
• Zetor 10111
• Zetor 10211
• Zetor 10245

Application and Buying Notes

When checking this starter motor, the part number MS309 should be your first reference point, followed by the physical match to the 3 hole starter mount, 127mm mount centres A, and 90mm mount centres B and C. The overall length of 338mm, flange diameter of 89mm, and 11mm mount hole diameter are practical dimensions to compare against the unit being replaced.

The electrical specification is straightforward: 12V and 3kW. That makes voltage and output capacity important checks for the vehicle’s system and starting requirements. The 11 tooth pinion and clockwise rotation also need to match the original starter configuration, as these details affect engagement and direction of operation.

The listed fitment data includes several Zetor applications, but it is still sensible to verify the exact model and year against the vehicle already in service. Variations can occur across production runs and earlier repairs, so the safest approach is to compare the replacement unit against the old starter and confirm the mounting, pinion, and rotation details before fitting.

This is a new starter motor with a one year warranty. If the existing part shows a different tooth count, rotation, or mount pattern, do not assume interchangeability. The supplied dimensions are there to help confirm compatibility, and they are especially useful when the vehicle data plate is unclear or the original unit is missing.

The product is described as suitable for Mahle units and is listed as a dry clutch application. If your machine has been modified or fitted with a non-standard starter in the past, a visual and dimensional check is worth doing before purchase. Matching the part number MS309 is the most reliable starting point, then confirm the 12V electrical setup and mounting geometry.

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 MS309 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 127mm, Mount Centres C 90mm, Number of Teeth 11, Pinion at Rest 48mm, Power Rating 3kW, Suits Unit Make Mahle, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Bore O 1 10.9, Tooth Pitch 14.39, Mounting points diameter 127.0, Packaging width 21.50, Net Weight 13792, Product Group 1 ROTATING ELECTRICAL, Part No. MS309, Brand MAHLE, Description Mahle Starter Motor 12V 11Th CW.

Mahle Starter Motor 12V 11Th CW. Part number MS309 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 MS309, 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 ZETOR 10045, ZETOR 10045 1978, ZETOR 10111, ZETOR 10111 1985. 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 One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm compatibility using part number MS309, the 12V specification, 11 tooth clockwise drive, and the listed mounting dimensions before ordering. Fitment should always be checked against the vehicle application and the starter currently fitted.

FAQ

What is the part number for this starter motor?

The part number supplied is MS309.

What voltage and power rating does it have?

It is a 12V starter motor with a 3kW power rating.

How many teeth does the pinion have?

The starter has 11 teeth.

What rotation does this starter motor use?

It is clockwise rotation, shown as CW.

Which vehicle applications are listed for this part?

The supplied fitment data lists Zetor 8011, 8045, 8145, 10045, 10111, 10211, and 10245 applications.

What should I check before buying this starter motor?

Check part number MS309, 12V system voltage, 11 tooth clockwise rotation, 3 hole mount type, and the listed mounting dimensions including 127mm mount centres A and 90mm mount centres B and C.