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Alternator for Komatsu PC200-6 & PC300-5 S6D95 - 24V 30A

Alternator for Komatsu PC200-6 & PC300-5 S6D95 - 24V 30A

SKU:400-50009

Regular price £252.20 GBP
Regular price Sale price £252.20 GBP
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Alternator for Komatsu PC200-6 & PC300-5 S6D95 - 24V 30A

Fits Komatsu excavators, dozers, loaders and graders - 24V, 30 Amp, IR/EF

This 24-volt, 30-amp alternator is a direct replacement for Komatsu plant fitted with the Nikko IR/EF unit of this specification, most commonly the PC200-6 and PC300-5 excavators running the S6D95 engine. It is built to OEM specifications by Nikko, giving the same fit, output and mounting as the original alternator it replaces, with no modification required for installation.

It replaces the Komatsu 600-821-6190 unit and the Nikko 0-33000-6580 / 01-33-2002 originals. The alternator is an internal-regulator, external-fan design using an S9 pulley measuring 83mm OD across nine grooves, with an M12 x 1.75 threaded main mounting hole and an M5 x 0.8 B+ output stud.

Key Features

  • 24V, 30 Amp output to factory specification
  • Internal regulator, external fan (IR/EF) design
  • S9 pulley, 9-groove, 83mm OD
  • M12 x 1.75 threaded mounting hole and M5 x 0.8 B+ stud, as original
  • Manufactured by Nikko
  • Replaces Komatsu 600-821-6190 and Nikko 0-33000-6580

Technical Specs

Specification Detail
Voltage 24V
Amperage 30A
Polarity Negative earth
Pulley Type S9 - 9-groove, 83mm OD
Fan Type External (EF)
Regulator Internal (IR)
Mounting M12 x 1.75 threaded, second ear unthreaded
Output Terminal B+ M5 x 0.8
Manufacturer Nikko
Lester Number 12252

Vehicle Fitment Guide

Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.

Make & Model Years
Komatsu PC200-6 Excavator (S6D95 engine) Not specified
Komatsu PC300-5 Excavator (S6D95 engine) Not specified
Komatsu Dozers, Wheel Loaders, Forklifts and Graders with 4D94, 4D95, 4D105, 4D130, 6D95, 6D105, 6D110 or 6D125 engines Not specified

OEM Part Number Cross Reference

Aftermarket replacement. OEM part numbers are listed for reference only.

Part Number Manufacturer / Brand
600-821-6190, 600-821-6110, 600-821-6120, 600-821-6130, 600-821-6140, 600-821-6150, 600-821-6160, 600-821-5410, 600-821-5540, 600-861-2110 Komatsu
01-33-2002, 0-33000-6580, 0-33000-2871, 0-33000-3071, 0-33000-5860, 0-33000-5880, 0-33000-6511 Nikko
3400-0502 Atlantic Quality Parts
12252 Lester

Frequently Asked Questions

Will this alternator fit without any modification?

Yes. This is a direct OEM fit and function replacement using the same mounting, pulley and electrical connections as your original unit, so no modification is needed.

How do I confirm it is right for my machine?

Check the number on your existing alternator against the cross reference table above - Komatsu 600-821-6190 and Nikko 0-33000-6580 are the usual originals for this fitment.

What is included?

You receive one new alternator, ready to install using your existing bracket, belt and wiring loom.

How can I tell my old alternator has failed?

Common signs include a battery warning light, dim or flickering lights, a battery that won't hold charge, or a whining or growling noise from the alternator itself.

Is the pulley the same as my original?

This unit is fitted with an S9, 9-groove pulley measuring 83mm OD. Please compare this against your original pulley before ordering to confirm a match.

Dispatched from the UK · 12-month warranty · Fitment support from our technical team
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Shipping calculated at checkout. Free shipping over £150. Terms apply