Mahle Starter Motor 24V 12T CW MS405

The MAHLE starter motor MS405 is a new 24V unit with 12 teeth and clockwise rotation. It is listed as a 6.5kW starter motor with reduction gear transmission and a dry clutch arrangement, which makes the electrical rating and mechanical layout clear before you compare it to the vehicle you are working on.

Key dimensions include 127mm mount centres A, 127mm mount centres B, and 127mm mount centres C, with a 3-hole starter mount type and 3 mounting bores. The flange diameter is 92mm, the overall length is 371mm, and the mounting points diameter is 146.0, so there is enough detail here to check the physical fit against the original starter before ordering.

This part is identified as MAHLE part number MS405 and is supplied new, not remanufactured. The pinion has 12 teeth, a 45mm pinion diameter, and 48mm pinion at rest, which are useful checks when confirming engagement depth and starter configuration for the application.

The unit is listed as suitable for a range of heavy-duty and machinery applications, including Mercedes-Benz, Bell, Claas, Hitachi, John Deere, Mitsubishi Fuso, Tamrock and Yutong models in the supplied application data. Because starter fitment is highly specific, the part number, rotation, voltage, tooth count and mounting measurements should all be checked together before purchase.

Key Features

• 24V starter motor
• 12-tooth pinion
• Clockwise rotation
• 6.5kW power rating
• Reduction gear transmission
• 3-hole starter mount

Specifications

• Brand: MAHLE
• Part No.: MS405
• Voltage: 24
• Type: Starter Motor
• Number of teeth: 12
• Rotation: CW
• Power rating: 6.5kW
• Starter mount type: 3 Hole

Application guidance

• Listed applications include Mercedes-Benz Actros and Actros MP2/MP3 models in the supplied data.
• Listed applications also include Bell B30C, B35C, B35D, B35E, B40, B40C, B40D, B40E, B45E and B50D variants in the supplied data.
• Listed applications also include Claas Jaguar and Claas Xerion variants in the supplied data.
• Listed applications also include Hitachi AH400D, AH500D, B40D, B50D and ZW310 variants in the supplied data.
• Listed applications also include John Deere 300C, 350C, 350D, 400C and 400D variants in the supplied data.
• Listed applications also include Mitsubishi Fuso HD Euro and Shogun/Heavy variants, Tamrock Toro 300, and Yutong T12 in the supplied data.

Application and Buying Notes

Before ordering, compare the existing starter against MS405 using the part number, 24V system voltage, 12-tooth count, clockwise rotation and the 3-hole mounting pattern. Those details matter as much as the make or model name, especially on heavy equipment and truck applications where similar-looking starters can differ in tooth count, flange size or pinion position.

The mounting dimensions are important on this unit: 127mm mount centres A, B and C, a 92mm flange diameter, 371mm overall length and 146.0 mounting points diameter. If the old starter has a different bolt pattern or the flywheel engagement point is not 51.0 depth compatible, the unit may not be suitable even when the vehicle appears in the application list.

The supplied application data is broad and includes multiple makes and model families. Use it as a guide only, then verify the vehicle build details, the existing starter label, and the MS405 measurements before fitting. This is the safest way to avoid downtime and unnecessary returns.

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 MS405 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 127mm, Number of Teeth 12, Pinion at Rest 48mm, Power Rating 6.5kW, Suits Unit Make Mahle, Item Type Starter Motor.

Additional published details for cross-checking include Starter Mount Type 3 Hole, Transmission Type with reduction gear, Number of mounting bores 3, For flywheel depth 51.0, Mounting points diameter 146.0, Packaging width 21.50, Net Weight 14045, Product Group 1 ROTATING ELECTRICAL, Part No. MS405, Brand MAHLE.

Mahle Starter Motor 24V 12Th CW. Part number MS405 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 MS405, 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 BCI MERCEDES-BENZ, BCI MERCEDES-BENZ 2018, BCI MERCEDES-BENZ 2019, BCI MERCEDES-BENZ 2020, BELL B30C, BELL B30C 1998. 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 MAHLE part number MS405, 24V system voltage, 12 teeth, clockwise rotation, and the 3-hole mounting dimensions against the existing starter and vehicle application details before purchase.

FAQ

Is this starter motor new or remanufactured?

This MAHLE starter motor is listed as new, not remanufactured.

What voltage is the MS405 starter motor?

The listed voltage is 24V.

How many teeth does the pinion have?

The pinion has 12 teeth.

What is the rotation direction?

The rotation is clockwise, shown as CW.

What mounting setup does it use?

It is a 3-hole starter mount with 3 mounting bores, and the mount centres A, B and C are all listed as 127mm.

What warranty is listed for this part?

The listed warranty is one year.