View Our Range Of Diesel Injectors and Diesel Fuel Pumps
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Read More About Our Diesel Injectors and Diesel Fuel Pumps
We offer a full TEST and REPORT service for Common Rail INJECTORS and PUMPS by Bosch, Delphi, Denso, Siemens, solenoid and Piezo, Unit injectors EUI, PDE and PPD.
- Our Exchange Programme is supported by a comprehensive range of ” in house” remanufactured units for the above. Most are available “off shelf” for a next day delivery.
- Units can also be purchased outright.
- We can also remanufacture customers own units.
- All our work is carried out by fully trained technicians using the latest test equipment.
Diesel Fuel Pumps
Prior to the advent of common rail, the diesel pump was one of the most important components in delivering diesel to the combustion chamber. The pump had to be timed within a degree to the engine, so to produce the fuel delivered into the compression ignition cycle. However, with common rail the fuel pump delivers fuel to the rail and the pressure and amount of fuel are controlled via the ECU using pressure sensor, volume sensor or pressure valve.
Our stock of common rail fuel pumps is wide and varied. The pumps will be either new or reconditioned in our workshops. With pre-common rail pumps, although our stocks are not what they were, we pride ourselves in sourcing exchange and/or outright pumps.
With over 48 years experience, our industry sourcing knowledge is second to none, so it is highly likely that we will be able to help out with your particular needs.
In the unusual circumstances that we are not able to supply your requested pump, we can collect your pump unit, recondition it in our workshops with a minimum of a three-day turnaround on the part. Please contact us for more details.
Diesel Injectors
The function of a diesel injector is to convert diesel fuel from a liquid to a vapour that is sprayed into the combustion chamber of the diesel engine. It creates an explosion under compression.
On the old style of diesel, the timing of when the injector injects the fuel into the chamber was determined by the pump. With common rail and EUI engines the timing is now determined by the ECU or on board computer. The nozzle in the injector will spray the atomised fuel at a specific angle depending on the application.
On common rail systems, the injector can be triggered several times before the main injection and several times after the main injection, thus creating better fuel efficiency and noise reduction. These injectors are set up on equipment working to tolerances within 1 micron (0.001mm).
With almost 20 years experience in the test and repair of common rail and electronic unit injectors, Darwen Diesels can provide an experienced- backed quality service.




















