Nikko Alternator 24V 90A Twin Leg Internal Regulator Part No. NXA9713

The Nikko alternator listed here is a new 24V, 90A unit with part number NXA9713. It is an alternator assembly sold each, with a twin leg mount, internal regulator, and an 8 groove pulley section, so it is intended for applications that need those mounting and drive details to line up correctly.

Key physical details include a 261mm mount centre-to-centre measurement, 109mm inside mounting legs, a 13mm pivot hole, M12 adjusting hole, and a 95mm pulley outside diameter. These measurements matter because alternators that look similar can still differ at the brackets, pivot points, and belt drive.

Nikko lists this unit as environmentally coated and suitable for different industry needs, with resistance to cold and heat. The stated weight is 19.14kg, and the alternator is covered by a one year warranty.

The product information also notes long life from a smaller number of friction parts, plus oil, dust, and marine use availability for some versions in the range. For this specific unit, the confirmed details remain the 24V 90A electrical rating, Nikko unit make, and part number NXA9713.

Key Features

• New alternator assembly
• 24V electrical system
• 90A power rating
• Internal regulator
• Twin leg mount
• 8 groove pulley section

Specifications

• Brand: Nikko
• Product type: Alternator
• Unit of measure: Each
• Voltage: 24V
• Amperage: 90A
• Mount type: Twin leg
• Regulator type: Internal
• Pulley section: 8 groove

Fitment and application notes

• Kobelco SK850LC
• Kobelco SK850LC 2010
• Komatsu D155AX-5
• Komatsu D155AX-6
• Komatsu D275AX-5
• Komatsu D275AX-5E0
• Komatsu D355A-3
• Komatsu D355A-3 2010

Application and Buying Notes

The most reliable way to check this alternator is by matching the part number NXA9713 and then comparing the mounting and drive details against the unit being replaced. The critical checkpoints are 24V, 90A, twin leg mount, internal regulator, and the 8 groove pulley section with a 95mm outside diameter.

The listed mounting measurements are important: 261mm centre to centre, 109mm inside mounting legs, 13mm pivot hole, and M12 adjusting hole. If any of these do not match the original alternator or the machine’s bracket setup, the unit may not install correctly even if the electrical rating appears close.

Fitment information supplied for this item includes Kobelco SK850LC and SK850LC 2010, plus a number of Komatsu applications such as D155AX-5, D155AX-6, D275AX-5, D275AX-5E0, D355A-3, D375A-2, D375A-5, and D375A-5E0. Because equipment variants can differ, confirm the exact machine model, year, and existing alternator details before ordering.

This alternator is listed as new and environmentally coated, with a one year warranty. The coating, weight of 19.14kg, and stated resistance to cold and heat may be useful in demanding operating conditions, but the best fit check remains the physical dimensions and the machine application.

If you are replacing an alternator that has failed, compare the old unit’s bracket spacing, pulley groove count, regulator style, and electrical output before purchase. A correct match in those areas reduces the chance of installation issues and avoids relying on appearance alone.

Where the machine has been worked hard or modified previously, rely on the confirmed part number and measurements rather than a general model match. That approach is especially important with alternators, because pulley and mounting variations can exist within the same equipment family.

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 NXA9713 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 ALTERNATOR, Unit of Measure EACH, Warranty One Year, Inside Mounting Legs 109mm, Power Rating (Amp) 90, Pulley Section 8 Groove, Suits Unit Make Nikko, Note Environmentally coated, Mount Cnt to Cnt 261mm, Shaft Dimension 30.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. NXA9713, Brand NIKKO, Description Nikko Alternator 24V 90A, Adjusting Hole Diameter M12, Pivot Hole Diameter 13, Pulley Outside Diameter 95mm, Regulator Type Internal, Voltage 24.

Nikko Alternator 24V 90A. Part number NXA9713 should be checked first. Listed voltage is 24. Listed output rating is 90. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Twin Leg. Regulator type is Internal. Pulley configuration is 8 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number NXA9713, 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 alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 24 and output 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include KOBELCO SK850LC, KOBELCO SK850LC 2010, KOMATSU D155AX-5, KOMATSU D155AX-6, KOMATSU D275AX-5, KOMATSU D275AX-5E0. 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: Please confirm fitment using part number NXA9713, the 24V 90A rating, twin leg mount, internal regulator, and the listed mounting and pulley dimensions before purchase.

FAQ

What is the part number for this alternator?

The part number is NXA9713.

Is this alternator new or remanufactured?

It is listed as new.

What voltage and output does it have?

It is a 24V alternator with a 90A power rating.

What type of regulator does it use?

It uses an internal regulator.

What mounting and pulley details are listed?

It has a twin leg mount, 261mm mount centre to centre, 109mm inside mounting legs, a 13mm pivot hole, M12 adjusting hole, and an 8 groove pulley section with a 95mm pulley outside diameter.

Which applications are listed for fitment?

Fitment information supplied includes Kobelco SK850LC and SK850LC 2010, plus Komatsu applications including D155AX-5, D155AX-6, D275AX-5, D275AX-5E0, D355A-3, D375A-2, D375A-5, and D375A-5E0.