Starter Motors
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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Official Komatsu number | 600-813-2151 |
| Manufacturer Part Number | Published Nikko number | 0-21000-4830 |
| Manufacturer Variant | Published Nikko suffix variant | 0-21000-4831 |
| Published Equipment Replacement | Verify mounting and terminal configuration | 600-813-2150 |
| Cross-reference (fitment check required) | Verify configuration | UD11085S / Wilson 91-28-4073 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.
Product summary
Before ordering
Machine fitment
3 model references
Fitment / evidence notes
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Engine: Komatsu 4D105-5C / 4D105-5D, Engine: Komatsu 4D94-2D / 4D94-2E / 4D94-2F / 4D94-2G / 4D94-2H / 4D94-2J / 4D94-2K, Equipment: Komatsu PC60 / D20 / EC30 / EC50 family. Recorded fitment/evidence notes: Fitment limitation: Confirm 600-813-2151 or 0-21000-4830, 24V, 9-tooth CW drive, engine suffix, flange, terminal layout and original nameplate power. Confirm the complete part number and machine serial range before ordering.
Cross-references are listed in the relationship table above. Compare specifications and the original unit before treating a reference as interchangeable. Manufacturer number: 0-21000-4830, 0-21000-4831.
Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.
