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Car fuel supply system parts

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Fuel injection car parts - all important information about operating method, mounting, diagnostics and service life

A vehicle’s fuel system is designed to store and filter fuel, as well as supply it to the engine cylinders. Engine stability and performance depend on it.

Design of the fuel system

The fuel systems of various vehicles may differ. The main differences lie in the way the fuel is injected. Nevertheless, every vehicle has a tank to store fuel, a filter to purify it, a pump to supply it to the engine, delivery and return pipelines, and sensors which monitor, among other things, fuel level and other parameters.

Petrol vehicles may have the following types of fuel injection:

  • Single-point fuel injection (SPI). A single injector supplies fuel into the inlet manifold. This is where the air-fuel mixture is formed.
  • Multipoint fuel injection (MPI). There is an injector for each cylinder in the system. The fuel supply line is divided with the help of a special fuel distributor.
  • Direct fuel injection. This includes a high-pressure line with another pump and a fuel rail. Fuel is supplied directly to the combustion chambers under high pressure.
  • Combined fuel injection. Such fuel systems are equipped with high and low pressure fuel rails. High-pressure fuel injectors are installed into combustion chambers, while the low-pressure ones are built into the inlet manifold. The control unit selects the method of fuel supply depending on the engine operating mode.

The following types of injection systems are common in diesel vehicles:

  • High pressure fuel pump. Fuel is supplied to the injectors via high pressure pump.
  • Unit injectors. They ensure a layered injection of the fuel right into the combustion chambers. These components are driven by the camshaft.
  • Common Rail. This encompasses a rail and a high-pressure fuel pump. The injectors are installed in the combustion chambers and are connected with the rail via a high-pressure pipeline.

Maintenance tips

  • Refuel your vehicle at reliable filling stations. This will help you avoid corrosion and deposits in the fuel system, as well as to avoid the contamination of its components.
  • Replace fuel filters on time. If the throughput capacity of a filter is restricted, all components of the fuel system are exposed to severe strain.
  • Keep your fuel tank at least half full, especially during cold weather. Otherwise, the condensation may cause difficulties with starting the engine. Sometimes tanks begin to rust.
  • Every six months, add a special additive to the fuel tank to remove moisture. This is an excellent preventive measure which will help to extend the service life of the system’s components.
  • Regularly clean the injectors. In some cases, you can use a special additive for that purpose. However, it is much more effective to have them cleaned at a car repair shop.

Signs of malfunction

Difficulties when starting engine or reduced engine power can be caused by a diminished performance of the fuel pump. Engine malfunctions in every mode is a sign of a clogged filter. The same symptoms can be observed when the return pipeline is deformed, but in this case, the problem is accompanied by increased fuel consumption. The smell of petrol, coloured puddles beneath your car after parking, and significantly increased fuel consumption are symptoms of a leaky fuel system. Clogged injectors may result in engine misfiring, unusual sounds, and jerky movements while driving.

Causes of malfunction

These problems mostly occur due to fuel that is low in quality or contaminated. It contains particles which clog the filter and other system components. As a result, the pump can break down. Water is also harmful, especially, for diesel engines: The components of the fuel system are made of materials prone to corrosion. This may cause moving parts to jam. Furthermore, the throughput capacity of the injectors and pressure regulator is impaired.

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You can always buy high-quality fuel system components for your vehicle in our online shop. They are offered at affordable prices. Additionally, you have an opportunity to save on delivery.

Useful information on functions, causes of malfunction, diagnosis and replacement intervals

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Top 15 of best sellers from the Fuel injection system section

Recommended spare parts from the Fuel supply section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.

Buy Lambda sensor 17025 BOSCH 0 258 017 025 - Fuel system parts online

Evaluation

A.K. 16.09.2023

Wanted assurance from a reputable company thatvthe item us genuine.

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Parts Details
  • Overall Length [mm]: 1000
  • Number of circuits: 5
  • Recommended change interval [km]: 250000
  • BOSCH: Lambda sensor
  • Item number: 0 258 017 025
  • Our price: £ 82,36
  • Condition: New
Details
Lambda sensor
Article number: 0 258 017 025
£ 82,36
price incl. 20% VAT, excl. delivery costs
Buy Lambda sensor DENSO DOX-0109 - Fuel injection parts online

Evaluation

R.S. 18.10.2020

Have used the same product before ,a good quality reasonable priced unit.

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Parts Details
  • Product line: Universal fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Lambda Sensor
  • Cable Length [mm]: 750
  • Number of pins: 4
  • for OE number: UNIVERSAL fit
  • Quality: OE
  • Weight [g]: 103
  • DENSO: Lambda sensor
  • Item number: DOX-0109
  • Our price: £ 40,12
  • Condition: New
Details
Lambda sensor
Article number: DOX-0109
£ 40,12
price incl. 20% VAT, excl. delivery costs
Buy Injector Nozzle VDO A2C59511612 - Fuel injection system parts online
Parts Details
  • Article number of recommended accessories: X11-800-002-004Z, X11-800-001-001Z
  • Observe the vehicle manufacturer specifications
  • Supplementary Article / Supplementary Info: with seal
  • Fuel Type: Diesel
  • Always compare old and new part (in particular OE No.)
  • VDO: Injector Nozzle
  • Item number: A2C59511612
  • Condition: New
Details
Injector Nozzle
Article number: A2C59511612
£ 328,16
price incl. 20% VAT, free delivery
Buy Injector EV-6-E BOSCH 0 280 155 968 - Fuel supply parts online
Parts Details
  • Fuel Mixture Formation: Petrol Injection
  • Static flow rate at 3 bar, medium N-Heptane [g / min]: 310
  • Resistor [Ohm]: 12
  • BOSCH: Injector
  • Item number: 0 280 155 968
  • Condition: New
Details
Injector
Article number: 0 280 155 968
£ 48,16
price incl. 20% VAT, excl. delivery costs
Fuel filter MANN-FILTER WK 842 - Fuel delivery system spare parts order
Parts Details
  • Filter type: Spin-on Filter
  • Height [mm]: 155
  • Diameter [mm]: 82
  • Thread Size Exit: M 16 X 1.5
  • Gasket inner diameter: 61
  • Seal Ring Outer Diameter: 70
  • MANN-FILTER: Fuel filter
  • Item number: WK 842
  • Our price: £ 7,45
  • Condition: New
Details
Fuel filter
Article number: WK 842
£ 7,45
price incl. 20% VAT, excl. delivery costs
Lambda sensor LS 6924 BOSCH 0 258 006 924 - Fuel supply system spare parts order
Parts Details
  • Overall Length [mm]: 325
  • Number of circuits: 4
  • Recommended change interval [km]: 250000
  • BOSCH: Lambda sensor
  • Item number: 0 258 006 924
  • Our price: £ 69,46
  • Condition: New
Details
Lambda sensor
Article number: 0 258 006 924
£ 69,46
price incl. 20% VAT, excl. delivery costs
Nozzle and Holder Assembly DELPHI 28237259 - Fuel system spare parts order
Parts Details
  • DELPHI: Nozzle and Holder Assembly
  • Item number: 28237259
  • Condition: New
Details
Nozzle and Holder Assembly
Article number: 28237259
£ 268,28
price incl. 20% VAT, free delivery
Fuel cap FEBI BILSTEIN 45550 - Fuel injection spare parts order

Evaluation

J.M. 09.08.2020

the price was right and I've heard FEBI parts are good for BMW

T.S. 16.01.2020

good price and good brand

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Parts Details
  • Supplementary Article / Supplementary Info Info 2: with support strap
  • Lockable: not lockable
  • for OE number: 16 11 7 482 902
  • Material: Plastic
  • Colour: Black
  • Weight [kg]: 0,06
  • FEBI BILSTEIN: Fuel cap
  • Item number: 45550
  • Our price: £ 14,21
  • Condition: New
Details
Fuel cap
Article number: 45550
£ 14,21
price incl. 20% VAT, excl. delivery costs
Fuel injection system parts - Lambda sensor DENSO DOX-0261
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Planar probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 510
  • Number of pins: 4
  • for OE number: 8946728010
  • Quality: OE
  • Weight [g]: 100
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0261
  • Our price: £ 95,02
  • Condition: New
Details
Lambda sensor
Article number: DOX-0261
£ 95,02
price incl. 20% VAT, excl. delivery costs
Fuel supply parts - High pressure fuel pump DELPHI 9424A050A
Parts Details
  • DELPHI: High pressure fuel pump
  • Item number: 9424A050A
  • Our price: £ 795,35
  • Condition: New
Details
High pressure fuel pump
Article number: 9424A050A
£ 795,35
price incl. 20% VAT, free delivery
Fuel delivery system parts - Fuel pump 69414 BOSCH 0 580 464 070
Parts Details
  • Operating Mode: Electric
  • Fitting Position: Fuel Line
  • Fit: Universal
  • BOSCH: Fuel pump
  • Item number: 0 580 464 070
  • Our price: £ 75,93
  • Condition: New
Details
Fuel pump
Article number: 0 580 464 070
£ 75,93
price incl. 20% VAT, excl. delivery costs
Fuel supply system parts - Fuel filter MANN-FILTER PU 8014

Evaluation

G.E. 04.09.2023

Quality and original parts of VW

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Parts Details
  • Filter type: Filter Insert
  • Height [mm]: 168
  • Diameter [mm]: 77, 94
  • Inner Diameter [mm]: 9
  • MANN-FILTER: Fuel filter
  • Item number: PU 8014
  • Our price: £ 18,02
  • Condition: New
Details
Fuel filter
Article number: PU 8014
£ 18,02
price incl. 20% VAT, excl. delivery costs
Fuel system parts - Lambda sensor DENSO DOX-0205
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Thread pre-greased, Lambda Sensor
  • Cable Length [mm]: 530
  • Number of pins: 4
  • for OE number: 8946512540
  • Quality: OE
  • Weight [g]: 103
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0205
  • Our price: £ 78,28
  • Condition: New
Details
Lambda sensor
Article number: DOX-0205
£ 78,28
price incl. 20% VAT, excl. delivery costs
Fuel injection parts - Lambda sensor DENSO DOX-0510

Evaluation

F.R. 05.09.2022

Used it to replace the sensor that's under located under the hood of my Toyota Auris 1.33 2009 - Next to Engine Pre Cat Bank 1 - Good delivery time, Excellent sensor - Engine management light that was on for 2 years went The sensor was the problem and the Stop/Start function which hadn't worked for 2 years also started to work. Very happy with my purchase! Glad I paid a bit extra for a good quality denso sensor rather than some of the cheaper alternatives stocked here and elsewhere.

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Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 290
  • Number of pins: 4
  • for OE number: 89467-53040
  • Quality: OE
  • Weight [g]: 86
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0510
  • Our price: £ 105,23
  • Condition: New
Details
Lambda sensor
Article number: DOX-0510
£ 105,23
price incl. 20% VAT, excl. delivery costs
Fuel injection system parts - Lambda sensor DENSO DOX-0539
Parts Details
  • Product line: Direct Fit
  • Thread Size: M18x1.5
  • Lambda Sensor: Heated, Finger probe, Broadband lambda sensor, Thread pre-greased
  • Cable Length [mm]: 960
  • Number of pins: 4
  • for OE number: RF8G188G1B
  • Quality: OE
  • Weight [g]: 143
  • Manufacturer Restriction: DENSO
  • DENSO: Lambda sensor
  • Item number: DOX-0539
  • Our price: £ 142,44
  • Condition: New
Details
Lambda sensor
Article number: DOX-0539
£ 142,44
price incl. 20% VAT, free delivery