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Mitsubishi MD155264 is the VE type distributor injection pump: cast alloy body with the boost compensator, governor levers, the black fuel shutoff solenoid block with its lead, four delivery valves and a keyed drive shaft with nut. It is used on Mitsubishi 4D56-T engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as Mitsubishi 104640-3970.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Fuel Injection Pump |
| Replaces | Zexel 104640-3970 |
| Engine | Mitsubishi 4D56-T 2.5 L |
| Type | VE distributor pump |
| Cross references | Mitsubishi MD155264 |
| Fits | the Mitsubishi 4D56-T 2.5 L turbo diesel engine |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| Zexel Part No.(SPM Part No.) | Fits |
|---|---|
| 104640-3970(SPM-HEP-5145) | the Mitsubishi 4D56-T 2.5 L turbo diesel engine |
| MD155264(SPM-HEP-5145) | the Mitsubishi 4D56-T 2.5 L turbo diesel engine |
Hard starting and low power
A worn injection pump delivers less fuel at lower pressure: long cranking and weak power under load.
Smoke and uneven running
Uneven delivery between cylinders shows as smoke and rough running.
Fuel leaks
Leaks from the pump body or shaft seal mean it is time to replace it.
Fitting tips
Set the pump timing to the engine maker's figure, bleed the fuel system, and use clean fuel and new filters.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (3 aftermarket sellers) | USD 499.90 to 545.00 | 2 Nov 2026 |
| SINOCMP | USD 729.00 | 2 Nov 2026 |
| Spare Part Mart | USD 399.92 | Today |
Our price of USD 399.92 is 20% to 45% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it is a direct replacement for the Mitsubishi MD155264 with the same fitting.
Often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
Most failures come from contamination, cavitation from a restricted inlet, or running low on fluid. Check the inlet and the fluid before fitting the new fuel injection pump.
No. It is an aftermarket fuel injection pump made to replace the Mitsubishi MD155264. It is not made by the original manufacturer; the number only shows what it replaces.
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