Mahle Starter Motor 24V 11 Tooth CW Part No. MS46

The Mahle MS46 starter motor is a new 24V unit with clockwise rotation, 11 teeth, and a 9.0kW power rating. It is listed as a 3 hole starter mount type and uses an insulated return, so it is important to compare the mounting and electrical setup with the original unit before ordering.

Key dimensions include 147mm mount centres A, 103mm mount centres C, a 92mm flange diameter, 373mm overall length, and a 48mm pinion at rest. The pinion diameter is 56mm, the tooth pitch is 20.56, and the mount hole diameter is 17mm, all of which help with a proper physical check against the existing starter arrangement.

This Mahle starter motor is identified as part number MS46 and is supplied as a new rotating electrical component. The listing notes suitability for wet or dry clutch applications, and the unit carries a one year warranty. Because starter fitment depends on the complete vehicle and engine arrangement, part number matching remains the safest starting point.

Key Features

• Mahle starter motor, part number MS46
• 24V electrical system
• Clockwise rotation
• 11 tooth pinion
• 9.0kW power rating
• New unit, not remanufactured

Specifications

• Brand: Mahle
• Product type: Starter motor
• Part No.: MS46
• Voltage: 24V
• Power rating: 9.0kW
• Rotation: CW
• Number of teeth: 11
• Starter mount type: 3 hole

Verified fitment information

• Caterpillar 583K
• Caterpillar 583K 1982
• Caterpillar 594H
• Caterpillar 594H 1974
• Caterpillar 777B
• Caterpillar 777B 1990
• Caterpillar 777C
• Caterpillar 777C 1990

Application and Buying Notes

Before ordering, confirm the original starter matches the MS46 in voltage, rotation, tooth count, mount type, and overall dimensions. The most useful checks here are 24V, clockwise rotation, 11 teeth, 3 hole mounting, and the listed 147mm and 103mm mount centres, because even a small difference in these points can stop the starter from fitting correctly.

The 9.0kW power rating and 56mm pinion diameter are important when comparing replacement options for heavy-duty applications. The starter is listed with an insulated return, so the electrical arrangement should also be checked against the vehicle or machine’s existing setup before purchase.

If you are replacing a starter on Caterpillar equipment, use the part number MS46 together with the application details rather than relying on appearance alone. The fitment list includes several Caterpillar models, but the safest approach is to match the exact machine model and any relevant build details against the original starter and mounting pattern.

This unit is supplied new and carries a one year warranty. That still does not remove the need to confirm the flange diameter of 92mm, overall length of 373mm, and mount hole diameter of 17mm, as these measurements help verify that the housing and mounting face are consistent with the vehicle’s existing starter 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 MS46 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 147mm, Mount Centres C 103mm, Number of Teeth 11, Pinion at Rest 48mm, Power Rating 9.0kW, Suits Unit Make Mahle, Note Insulated Return.

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Wet or Dry, Bore O 1 16.7, Tooth Pitch 20.56, Mounting points diameter 146.0, Packaging width 20.60, Net Weight 14170, Product Group 1 ROTATING ELECTRICAL, Part No. MS46, Brand MAHLE.

Mahle Starter Motor 24V 11Th CW. Part number MS46 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 MS46, 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 CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H, CATERPILLAR 594H 1974. 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.

Compatibility note: Confirm fitment by matching part number MS46, the 24V clockwise specification, the 11 tooth pinion, and the listed mounting and dimensional details against the original starter and machine application before ordering.

FAQ

What is the part number for this starter motor?

The part number is MS46. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.

Is this starter motor 12V or 24V?

It is a 24V starter motor. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.

Does this unit rotate clockwise or anti-clockwise?

It is listed as clockwise rotation, abbreviated CW. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The starter has 11 teeth. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured starter?

It is listed as new. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.

What warranty is supplied with this starter motor?

The listed warranty is one year. For this listing, part number MS46 is the main reference point. Listed voltage is 24. Published fitment references include CATERPILLAR 583K, CATERPILLAR 583K 1982, CATERPILLAR 594H. These details should still be checked against the original unit before ordering.