0460424055 Bosch VE Remanufactured Fuel Injection Pump for Cummins 4BT 3.9L

Remanufactured, or rebuilt, Bosch 0460424055 VE diesel fuel injection pump (Bosch type VE4/12F1250R359-1, OE Cummins 3914924 and 3917531) for the Cummins 4BT 3.9L four-cylinder turbocharged diesel engine rated at 105 HP (78 kW). The unit is rebuilt with new internal components and calibrated on a diesel test bench in our own workshop in Romania, and is supplied with a 1-year warranty. No core charge applies - you keep your old pump.

The VE pump is the heart of a mechanical (non common rail) diesel fuel system: a single plunger driven by a cam plate builds injection pressure and a rotating distributor head feeds each of the four injection lines in turn, while the mechanical governor sets fuelling against engine speed and load. A correctly calibrated pump restores clean starting, a stable idle, full rated power and the factory smoke level.

Also known internationally as: Diesel Fuel Injection Pump / VE Rotary Distributor Pump (EN), Einspritzpumpe / Verteilereinspritzpumpe (DE), Pompe d'injection diesel (FR), Pompa di iniezione diesel (IT), Bomba de inyeccion diesel (ES), Pompa de injectie diesel (RO) - Bosch 0460424055 for Cummins 4BT 3.9L.

Key features

Product details

OEM cross-reference numbers

Compare the number stamped on your original pump nameplate before ordering. The engine model alone is not enough to confirm compatibility, because the same engine family was built with several pump calibrations depending on power rating, application and production date.

Vehicle and machine compatibility

Compatibility must always be verified by the Bosch number on the pump nameplate, the Cummins OE number, or the engine serial number. The engine model on its own is not sufficient.

The Cummins 4BT 3.9L is used across industrial power units, agricultural machinery, construction equipment, generator sets, light trucks and engine-swap conversions. Because the same engine block appears in many different machines, always identify the pump by its own number rather than by the machine it is fitted to.

Technical information

What remanufactured, or rebuilt, with new parts means here

Rebuilt and remanufactured describe the same work here. The pump is fully dismantled, every component is inspected and measured, and the wearing parts are replaced with new ones. It is then reassembled, sealed, and run on a calibrated diesel test bench against the original Bosch test plan for this type, so delivery quantity, timing and governor behaviour match the values the engine manufacturer specified. A remanufactured pump built this way performs to the same specification as a new one, at a lower cost, and it is the standard way this discontinued pump type is supplied today.

We do not ask for a core charge on this pump and we do not require your old unit back, so the price you see is the full price of the part.

Shipping and warranty

Frequently asked questions

How do I know the Bosch 0460424055 fits my Cummins 4BT 3.9L? Read the aluminium nameplate on the side of the pump fitted to your engine. It carries a Bosch number in the 0 460 424 xxx range and a type formula such as VE4/12F1250R359-1. If either matches this listing, or if your Cummins parts number is 3914924, 3917530, 3917531, 3917532, 3917533 or 3911242, this is the correct pump. A 4BT 3.9L on its own is not enough, because the engine was built with several different pump calibrations.

Is this pump new, rebuilt or remanufactured? It is remanufactured, which is the same thing most workshops call rebuilt. The pump is stripped, rebuilt with new internal components and calibrated on a diesel test bench to the original Bosch test plan. It is not sold as a new unit in a sealed Bosch box. In the Google Shopping feed this condition is reported as refurbished, because that is the value Google uses for professionally restored parts supplied with a warranty.

Do I have to pay a core charge or send back my old pump? No. There is no core charge on this pump and your old unit does not have to be returned. The price shown is the complete price.

Is Bosch 0460424045 the same pump as 0460424055? 0460424045 (type VE4/12F1250R301-1) is the closely related Bosch number listed as an interchange for the same Cummins 4BT applications. The two share the same VE4/12 hardware with a different calibration index. Confirm against the number and type formula on your own pump nameplate before ordering.

What does the type formula VE4/12F1250R359-1 mean? VE identifies a Bosch rotary distributor injection pump, 4 is the number of cylinders it feeds, and 12 is the plunger diameter in millimetres. The characters that follow are the Bosch calibration and variant index that identify this exact build. Two pumps with the same VE4/12 hardware but a different index are calibrated differently and are not automatically interchangeable.

Is this a common rail pump? No. The Cummins 4BT 3.9L with this pump uses a mechanical direct-injection system. The VE pump produces the injection pressure itself and distributes it to four separate high-pressure lines. There is no rail, no rail pressure sensor and no electronic injector control.

Does the pump need to be timed and set up after fitting? Yes. The pump must be timed to the engine according to the Cummins procedure and the fuel system bled before starting. Delivery quantity and governor settings are already set on the test bench and must not be altered.

What should I check before fitting the pump? Replace the fuel filter, check the fuel supply and lift pump, and inspect the tank and lines for water, rust or debris. If the previous pump failed because of contamination, the injectors and the whole fuel supply side should be cleaned or replaced as well. Fitting a rebuilt pump into a dirty fuel system is the most common cause of an early repeat failure, and that damage is not covered by the warranty.

Are the injectors included? No. The package contains the injection pump only. Injectors, high-pressure lines and gaskets are ordered separately.

Do you ship worldwide? Yes, we ship worldwide. Stock items are handled the same day.

How is the pump packed? The pump is shipped in a protective box measuring 40 x 30 x 30 cm with a packed weight of 9.00 kg, with the inlet, outlet and return ports plugged so no dirt can enter during transport.

Common symptoms of a failing Bosch VE injection pump

On a mechanically governed VE pump the typical signs are long cranking or a no-start when hot, an unstable or hunting idle, loss of full-load power, black or white smoke, and diesel leaking from the top cover or the drive shaft seal. A worn distributor head or delivery valve shows up as uneven running between cylinders, while a sticking cold-start or timing advance mechanism gives poor cold starting and late injection. Rule out a blocked fuel filter, a weak lift pump, air drawn in on the suction side and contaminated fuel first, and have the pump tested on a diesel bench before replacing it.

Browse all diesel injection pumps in our catalogue.