Excavator Starter Motors
2 product photos · Swipe on mobile, or hover and select a thumbnail.
Clockwise Hitachi S114-303 direct-drive starter identified by Yanmar number 128170-77010. Yanmar parts catalogs specify 12V and 1.0kW, while technical records support 9 teeth, two mounting holes and an approximately 70mm flange for 1GM, 2GM and 3GM marine-engine families.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Yanmar starter | 128170-77010 |
| Same-number Formatting Variant | Compact Yanmar alias | 12817077010 |
| Manufacturer Part Number | Hitachi | S114-303 |
| Manufacturer Family Reference | Hitachi | S114-303A |
| Replacement Catalog Reference | Lucas | LRS01128 |
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
4 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 Yanmar marine engines: 1GM / 1GM10, Yanmar marine engines: 2GM / 2GM20 / 2GMF / 2GM20F, Yanmar marine engines: 3GM / 3GM30 / 3GMF / 3GM30F / 3GMD, Fitment limitation: Confirm 12V, 9T, S114-303, flange and engine variant. Confirm the complete part number and machine serial range before ordering.
Manufacturer number: S114-303, S114-303A. Formatting aliases for the same number: 12817077010.
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.
