Mitsubishi Starter Motor 24V 12T CW M9T66371AMA

The Mitsubishi Starter Motor M9T66371AMA is a 24V, 12-tooth, clockwise-rotation unit designed as a new starter motor for heavy-duty rotating electrical applications. It carries a 5.5kW power rating, 3-hole starter mount type, and a 92mm flange diameter, which are the key details to check when matching it to an existing starter setup.

This starter has mount centres of 126mm at A, B and C, an overall length of 315mm, a pinion at rest of 48mm, and a pinion diameter of 47mm. Those measurements, along with the 13.5mm mount hole diameter and CW rotation, are important identifiers when confirming replacement suitability.

Key Features

• 24V starter motor
• 12-tooth pinion
• Clockwise rotation (CW)
• 5.5kW power rating
• New unit
• 3-hole starter mount

Specifications

• Part No.: M9T66371AMA
• Brand: Mitsubishi
• Product type: Starter motor
• Voltage: 24V
• Number of teeth: 12
• Rotation: CW
• Power rating: 5.5kW
• Mount centres: 126mm A / 126mm B / 126mm C

Verified application details

• Volvo F12
• Volvo FMX13 with D12C420 engine
• Volvo FMX13 with D13C engine

Application and Buying Notes

Before ordering, confirm the part number M9T66371AMA and compare the 24V specification, 12-tooth pinion, CW rotation and 5.5kW rating against the starter being removed. These details are the most reliable starting point for a replacement match, especially on heavy-duty vehicles where similar-looking starters can differ in tooth count, rotation or mounting pattern.

Check the mounting dimensions carefully: 3-hole mount type, 126mm mount centres across A, B and C, 92mm flange diameter, 13.5mm mount holes, and 315mm overall length. If any of those measurements differ from the original unit, the starter may not sit correctly or engage the ring gear as intended.

The supplied application coverage points to Volvo F12 and FMX13 vehicles with D12C420 and D13C engines. If your vehicle is outside those specific details, match by part number and the physical starter dimensions rather than relying on model name alone, as there can be variations within the same vehicle range.

Because this is a new starter motor and weighs 9.2kg, handling and installation should be carried out with care. Confirm the battery system is 24V and make sure the existing starter location, cable arrangement and clutch type are consistent with the listed wet or dry clutch suitability before installing.

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 M9T66371AMA 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 2 Years 400,000km, Mount Centres A 126mm, Mount Centres C 126mm, Number of Teeth 12, Pinion at Rest 48mm, Power Rating 5.5kW, Suits Unit Make Mitsubishi, Note Starter Aux. solenoid has two shunt terminals as shunt winding is above ground. Resistance 13 Ohms at 23 Degs..

Additional published details for cross-checking include Starter Mount Type 3 Hole, Weight 9.2kg, Product Group 1 ROTATING ELECTRICAL, Part No. M9T66371AMA, Brand MITSUBISHI, Description Mitsubishi Starter Motor 24V 12Th CW, Flange Diameter 92mm, Mount Centres B 126mm, Mount Hole Diameter 13.5, Overall Length 315mm.

Mitsubishi Starter Motor 24V 12Th CW. Part number M9T66371AMA 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 M9T66371AMA, 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 UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999, UD NISSAN DIESEL C SERIES 2000, UD TRUCKS QUON, UD TRUCKS QUON 2008. 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 checking the part number M9T66371AMA, the 24V 12T CW specification, the 3-hole mounting pattern with 126mm centres, and the listed Volvo application details before purchase.

FAQ

What part number should I match for this starter motor?

The listed part number is M9T66371AMA. Matching that part number is the best way to confirm a replacement starter before comparing the physical dimensions and application details. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

It is a 24V starter motor. That makes it important to confirm the vehicle electrical system is also 24V before ordering. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The starter has a 12-tooth pinion, which is shown in the product title and specifications. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.

Which way does this starter rotate?

It rotates clockwise, noted as CW in the product details. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.

What vehicles are specifically listed for this starter?

The supplied application details list Volvo F12 and Volvo FMX13 with D12C420 and D13C engines. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.

What warranty is listed for this starter motor?

The warranty listed is 2 years or 400,000km, whichever applies under the product warranty terms. For this listing, part number M9T66371AMA is the main reference point. Listed voltage is 24. Published fitment references include UD NISSAN DIESEL C SERIES, UD NISSAN DIESEL C SERIES 1998, UD NISSAN DIESEL C SERIES 1999. These details should still be checked against the original unit before ordering.