Nikko Starter Motor 24V 11 Tooth CW NXS9724

The Nikko starter motor is a new 24V unit with 11 teeth, clockwise rotation, and a 7.5kW power rating. It is listed under part number NXS9724 and is a 3-hole starter motor with a 92mm flange diameter, 126mm mount centres, and a 17mm mount hole diameter.

Key dimensions to check before ordering are the 397mm overall length, 105.5mm nose cone length, 56mm pinion diameter, and 48mm pinion at rest. These measurements matter when matching the starter to the engine and mounting arrangement, particularly where clearance and engagement depth are critical.

The unit is specified as suitable for Komatsu D375A-5, D475A-3, HD785-5, and PC2000-8 with SA6D170E or SAA12V140E-3 engine. It is listed as suitable for wet or dry clutch applications and is supplied new, with a one year warranty.

Key Features

• Nikko starter motor, part number NXS9724
• 24V electrical system
• 11 tooth pinion
• Clockwise rotation
• 7.5kW power rating
• New unit

Specifications

• Voltage: 24V
• Power rating: 7.5kW
• Rotation: CW
• Number of teeth: 11
• Mount centres: 126mm A, 126mm B, 126mm C
• Starter mount type: 3 hole
• Flange diameter: 92mm
• Nose cone length: 105.5mm

Confirmed application details

• Komatsu D375A-5
• Komatsu D475A-3
• Komatsu HD785-5
• Komatsu PC2000-8 with SA6D170E engine
• Komatsu PC2000-8 with SAA12V140E-3 engine

Application and Buying Notes

Before ordering, match the part number NXS9724 and compare the electrical and mounting details against the existing starter. The key checks here are 24V voltage, clockwise rotation, 11 teeth, and the 3-hole mounting pattern with 126mm mount centres and 17mm mount hole diameter.

Also confirm the physical dimensions on the machine side, especially the 397mm overall length, 105.5mm nose cone length, 92mm flange diameter, and 56mm pinion diameter. These figures are useful when space is tight or when replacing a unit that has been altered, repaired, or substituted previously.

The listed application covers specific Komatsu machines, including D375A-5, D475A-3, HD785-5, and PC2000-8 with SA6D170E or SAA12V140E-3 engine. Even where the machine model looks similar, engine variant and starter configuration still need to be checked carefully before fitment is assumed.

This starter is described as suitable for wet or dry clutch use, but that does not replace a direct match on the starter itself. If your original unit has a different tooth count, rotation, voltage, or mounting layout, compare those details line by line before purchase.

At 18.46kg, this is a substantial rotating electrical component, so handling and installation should be done with care. Verify all cable connections, mounting faces, and engagement depth during fitting to avoid unnecessary strain on the starter or flywheel ring gear.

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 NXS9724 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 126mm, Mount Centres C 126mm, Nose Cone Length 105.5mm, Overall Length 397mm, Pinion Diameter 56mm, Rotation CW, Voltage 24.

Additional published details for cross-checking include New / Reman. New, Wet / Dry Clutch Wet or Dry, Product Group 2 STARTER MOTORS, Part No. NXS9724, Brand NIKKO, Description Nikko Starter Motor 24V 11Th CW, Flange Diameter 92mm, Mount Centres B 126mm, Mount Hole Diameter 17.

Nikko Starter Motor 24V 11Th CW. Part number NXS9724 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 NXS9724, 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.

Compatibility note: Always confirm compatibility using part number NXS9724 and the full application details, including 24V, 11 tooth, clockwise rotation, 3-hole mounting, and the stated Komatsu engine and model information before ordering.

FAQ

What is the part number for this starter motor?

The part number listed is NXS9724. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.

What voltage is this starter motor?

It is a 24V starter motor. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.

How many teeth does the pinion have?

The pinion has 11 teeth. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.

Which way does this starter rotate?

It is clockwise rotation, shown as CW. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.

Which Komatsu applications are listed?

The listed applications are Komatsu D375A-5, D475A-3, HD785-5, and PC2000-8 with SA6D170E or SAA12V140E-3 engine. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

It is listed as a new starter motor. For this listing, part number NXS9724 is the main reference point. Listed voltage is 24. Published fitment references include KOMATSU 730E, KOMATSU 830E, KOMATSU 830E-1AC. These details should still be checked against the original unit before ordering.