Mahle Starter Motor 12V 10 Tooth CW MS333

This Mahle starter motor is a new 12V unit with 10 teeth, clockwise rotation, and part number MS333. It is listed as a 2.7kW starter motor with a 3-hole mount, 3 mounting bores, and an overall length of 322mm, so it is important to compare the physical dimensions and mounting layout against the existing unit before ordering.

Key dimensions include mount centres A at 127mm, mount centres B at 90mm, mount centres C at 90mm, a flange diameter of 89mm, and a mount hole diameter of 11mm. The pinion diameter is 40mm and the pinion at rest is 29.5mm, which are useful checks when matching the starter to the application and flywheel setup.

This is a new starter motor from Mahle, supplied each, with a one year warranty. The listed application data includes Lister Petter engines such as Alpha 20, Alpha 30, Alpha 40 and Alpha 55T, including 1990 variants where shown, but fitment should still be confirmed against the part number, mounting pattern, and starter dimensions before purchase.

Key Features

• 12V new starter motor
• 10 tooth pinion
• Clockwise rotation
• 2.7kW power rating
• 3-hole starter mount
• Part number MS333

Specifications

• Brand: Mahle
• Product type: Starter motor
• Voltage: 12V
• Power rating: 2.7kW
• Rotation: CW
• Number of teeth: 10
• Starter mount type: 3 hole
• Number of mounting bores: 3

Known application data

• Lister Petter
• Lister Petter Alpha 20
• Lister Petter Alpha 20 1990
• Lister Petter Alpha 30
• Lister Petter Alpha 30 1990
• Lister Petter Alpha 40
• Lister Petter Alpha 40 1990
• Lister Petter Alpha 55T

Application and Buying Notes

When matching this starter motor, check the part number MS333 first, then confirm the mounting layout and dimensions on the existing unit. The important measurements here are the 3-hole mount, 127mm mount centres A, 90mm mount centres B and C, 89mm flange diameter, and 11mm mount hole diameter. Those figures need to line up with the vehicle or engine side before the starter can be considered a proper match.

The electrical and drive details also matter. This unit is 12V with a 2.7kW rating, 10 teeth, clockwise rotation, and a 40mm pinion diameter. The pinion at rest is 29.5mm and the listed flywheel depth is 32.5, so those measurements should be checked carefully where access allows, especially if the previous starter has been changed or the application has been modified.

The application data points to Lister Petter Alpha series engines, including Alpha 20, Alpha 30, Alpha 40 and Alpha 55T, with 1990 variants shown in the supplied fitment list. Even with that application information, the safest approach is to compare the existing starter against the listed physical specs and part number, because starter motors can look similar while differing in mount pattern, rotation, tooth count, or pinion position.

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 MS333 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 10, Pinion at Rest 29.5mm, Power Rating 2.7kW, Suits Unit Make Mahle, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Clamp 31, Number of mounting bores 3, For flywheel depth 32.5, Mounting points diameter 127.0, Packaging width 21.50, Net Weight 12372, Product Group 1 ROTATING ELECTRICAL, Part No. MS333, Brand MAHLE.

Mahle Starter Motor 12V 10Th CW. Part number MS333 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 MS333, 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 LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30, LISTER PETTER ALPHA 30 1990. 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: Confirm compatibility by comparing part number MS333, the 12V 10 tooth clockwise specification, and the mounting dimensions against the existing starter and engine application before ordering.

FAQ

What is the part number for this starter motor?

The listed part number is MS333. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

It is a 12V starter motor. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The starter motor has 10 teeth. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.

What rotation does this starter use?

It is clockwise rotation, listed as CW. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.

Which engines are shown in the fitment data?

The supplied application data includes Lister Petter and Lister Petter Alpha 20, Alpha 30, Alpha 40 and Alpha 55T, including 1990 variants where shown. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.

What should be checked before buying?

Check the part number MS333, the 12V and 10 tooth specification, the clockwise rotation, and the mounting dimensions including 3-hole mount, 127mm mount centres A, 90mm mount centres B and C, and 89mm flange diameter. For this listing, part number MS333 is the main reference point. Listed voltage is 12. Published fitment references include LISTER PETTER ALPHA 20, LISTER PETTER ALPHA 20 1990, LISTER PETTER ALPHA 30. These details should still be checked against the original unit before ordering.