Place of Origin:
China
Brand Name:
Mitsubishi
Model Number:
101609-9032
This is a complete diesel fuel injection pump assembly for the Mitsubishi S6K six-cylinder engine, catalogued by the machine maker as the 3066 and fitted to 320 and 320B class excavators as well as other frames running the same engine. It is an inline mechanical pump with six delivery valves, gear driven from the timing case, and supplied with flange and coupling. Ten part numbers describe this one casting — five on the pump side, five on the engine side — plus three further references in European format, so an enquiry can arrive under any of them.
| Product Name | Diesel fuel injection pump assembly |
|---|---|
| Pump Figure | 101609-9032, also written 1016099032 |
| Engine Side Figure | 34361-05073, with 34361-05071 and 34361-05072 listed against the same build |
| European Format | 9400611946, and the family also carries 9400612210 and 9400612500 |
| Sister Calibrations | 101609-9030, 9031, 9033 and 9034 |
| Engine | S6K six cylinder, catalogued by the machine maker as the 3066 |
| Machines | 320 and 320B class excavators, and the same engine in other frames |
| Governor | Mechanical, with a boost compensator on the turbocharged build |
| Drive | Gear driven from the timing case, flange and coupling supplied |
| Condition Offered | New, and rebuilt with a bench delivery report |
| Packing | Port caps, shaft sleeve, foam blocked carton |
| Ten Figures, One Body | Five figures on the pump side of the catalogue and five on the engine side all describe the same casting, and a further three appear in European format, so an enquiry can arrive under any of them. |
|---|---|
| The Figure Everyone Quotes | Resellers overwhelmingly answer this engine family with the fifteen seventy calibration because it is the one attached to the later machine, and it is a different build. |
| One Digit Apart | Thirty, thirty one, thirty three and thirty four surround this figure and are quoted interchangeably by sellers who treat the block as a range. |
| Two Five Digit Families | The engine side also lists two nearby five figure references that differ only in the middle digits, and both are sold against this pump. |
| Feed Pump Confusion | A small lift pump for the same engine carries a similar five figure reference and is routinely titled as an injection pump in bulk uploads. |
| Neighbouring Engine | The smaller relative of this engine uses a distributor type pump with a completely different outline, and its figure begins one zero four. |
| Caution — Timing | The flange has no keyway, so the pump must be pinned and timed to the engine marks before the coupling is tightened. |
| Caution — Delivery Valves | Six delivery valves sit on top and each has a sealing washer that is used once, so a reused washer will weep diesel onto a hot manifold. |
| Caution — Boost Pipe | The compensator hose from the inlet manifold must be reconnected, otherwise the pump delivers as if unboosted and the machine is flat under load. |
| Caution — Stop Solenoid | A pump that will not shut off is usually the fuel cut solenoid or its earth, not the pump internals. |
| Related Components | Feed pump, filter head, delivery valve washers, coupling, injectors, return line. |
No, they share a casting but carry different calibration plates.
The one cast or printed on the pump body.
No, the flange must be pinned to the marks first.
The feed pump, filters and delivery valve washers.
The compensator hose is left off or the timing is one tooth out.
No, that engine uses a different pump outline.
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