Mahle Starter Motor 12V 11 Tooth CW MS41

This Mahle starter motor is a 12V unit with 11 teeth, clockwise rotation, and a 3.2kW power rating. It is listed as new, with a 3-hole starter mount type, 3 mounting bores, and part number MS41.

Key physical dimensions include 127mm mount centres A, 90mm mount centres C, a 89mm flange diameter, 310mm overall length, and a 42mm pinion diameter. The pinion at rest is 47.5mm, and the mount hole diameter is 10.5mm.

The starter is described as an original equipment part and suits Mahle applications. It is a reduction gear type starter, which is important when matching the replacement to the existing unit and vehicle application.

Key Features

• 12V starter motor
• 11 tooth pinion
• Clockwise rotation
• 3.2kW power rating
• New unit
• 3-hole starter mount

Specifications

• Brand: Mahle
• Part number: MS41
• Voltage: 12V
• Number of teeth: 11
• Rotation: CW
• Power rating: 3.2kW
• Starter mount type: 3 hole
• Number of mounting bores: 3

Confirmed application information

• Volvo Marine/Penta AD31B
• Volvo Marine/Penta AD31B 1990
• Volvo Marine/Penta AQAD30A
• Volvo Marine/Penta AQAD30A 1983
• Volvo Marine/Penta AQAD31A
• Volvo Marine/Penta AQAD31A 1990
• Volvo Marine/Penta AQAD40A
• Volvo Marine/Penta AQAD40A 1979

Application and Buying Notes

Before ordering, check the part number MS41 against the unit you are replacing and confirm the starter is a 12V, clockwise rotating, 11 tooth version. The physical layout also matters here: the unit uses a 3-hole mount, 127mm mount centres A, 90mm mount centres C, and 10.5mm mount hole diameter.

This starter is a 3.2kW reduction gear unit, so the electrical and mechanical specification should be checked against the original starter rather than relying on external appearance alone. Overall length is 310mm, flange diameter is 89mm, and the pinion diameter is 42mm, all of which can help when comparing against the removed part.

If you are matching by measurements, confirm the pinion at rest measurement of 47.5mm as well as the 14.76 tooth pitch. These details are useful when the engine application is close but not identical, or when the existing starter has been changed previously.

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 MS41 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 47.5mm, Power Rating 3.2kW, Suits Unit Make Mahle, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Bore O 1 10.5, Tooth Pitch 14.76, Mounting points diameter 127.0, Packaging width 21.50, Net Weight 8500, Product Group 1 ROTATING ELECTRICAL, Part No. MS41, Brand MAHLE, Description Mahle Starter Motor 12V 11Th CW.

Mahle Starter Motor 12V 11Th CW. Part number MS41 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 MS41, 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 VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A, VOLVO MARINE/PENTA AQAD30A 1983. 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 fitment by checking part number MS41, 12V electrical specification, 11 tooth clockwise configuration, and the listed Volvo Marine/Penta application details before ordering.

FAQ

Is this starter motor new or remanufactured?

It is listed as new. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.

What is the part number for this Mahle starter motor?

The part number is MS41. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.

What voltage does this starter use?

This starter motor is rated at 12V. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

It has 11 teeth. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.

What rotation does this starter motor have?

The rotation is clockwise, listed as CW. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.

Which engines are listed as compatible?

Listed applications include Volvo Marine/Penta AD31B, AQAD30A, AQAD31A, AQAD40A, AQAD41A, KAD32P and TMD31A variants, with some year references shown in the fitment data. For this listing, part number MS41 is the main reference point. Listed voltage is 12. Published fitment references include VOLVO MARINE/PENTA AD31B, VOLVO MARINE/PENTA AD31B 1990, VOLVO MARINE/PENTA AQAD30A. These details should still be checked against the original unit before ordering.