Excavator Starter Motors
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24V, 4.5kW starter assembly identified by Isuzu Select Parts number 1-87618268-0 and genuine number 1-81100401-3. The July 2024 Isuzu Select Parts list assigns this pair to 4BG1 and 6BG1 engines. Independent starter catalogs also identify the 1-81100401-3 unit as a Nikko 0-24000-3261 starter. Confirm the complete number, 11-tooth pinion, mounting flange and terminal layout before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Select-Parts Number | Isuzu Select Parts starter-assembly number | 1-87618268-0 |
| Genuine Manufacturer Part Number | Isuzu genuine starter-assembly number | 1-81100401-3 |
| Manufacturer Starter Number | Nikko starter catalog number | 0-24000-3261 |
| Same-number Formatting Variant | Compact Isuzu genuine-number formatting | 1811004013 |
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. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 model references
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 Cataloged engine families: Isuzu 4BG1 / 6BG1, Cataloged equipment family: Selected industrial, excavator and heavy-equipment installations, Fitment limitation: Confirm 1-87618268-0 or 1-81100401-3, 24V, 4.5kW, 11 teeth, flange and terminals. Confirm the complete part number and machine serial range before ordering.
Manufacturer number: 1-81100401-3, 0-24000-3261. Formatting aliases for the same number: 1811004013.
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.
