The Doosan S4S engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 30691-02100 | Compression gage | compression_gage |
| 34491-00200 | Piston installer | other_service |
| 58309-73100 | Turning socket | other_service |
| 31391-12900 | Piston ring pliers | piston_ring_pliers |
| 33391-02100 | Special tool gage adapter | special_tool |
| M2TS5071 | Starter (24 V-3.2 kW) | starter |
| M31T67671 | Starter (24 V-3.2 kW) | starter |
| M8T60373 | Starter (24 V-3.2 kW) | starter |
| M8T75171 | Starter (24 V-3.2 kW) | starter |
| 30691-04500 | Valve spring pusher | valve_spring_pusher |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.