Excavator Starter Motors
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Starter Motor identified by primary reference 4992285. Independent exact-number sources agree on 12V, 4.8kW, clockwise rotation and a 10-tooth pinion. The old 24V title was incorrect and has been removed. Confirm the complete part number, mounting, connector, dimensions and machine serial range against the original unit before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Engine manufacturer part identity | 4992285 |
| Manufacturer Part Number | Starter manufacturer part identity | 428000-7130 |
| Direct Replacement Number | Exact-number replacement listing | 428000-9950 |
| Catalog Cross-Reference - Verify Configuration | Aftermarket catalog identity | 246-31117 |
| Catalog Cross-Reference - Verify Configuration | Aftermarket catalog identity | S6443S |
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
2 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 Engine families: 6C8.3, 6CT8.3, ISC, ISC8.3, ISL, ISL9, L9, QSB, QSC8.3, QSJ8.9, QSL8.9 and QSL9, Fitment limitation: Verify 12V system, 10-tooth pinion, wet-clutch seal, flange and terminal layout. Confirm the complete part number and machine serial range before ordering.
Documented direct interchanges: 428000-9950. Manufacturer number: 428000-7130.
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.
