Fuel filter cover OE LR036127 Fuel feed unit for Land Rover Fuel tank sender cover
 

Product Description:

 
Fuel filters
OE NO.: LR036127 LR043420 LR026197

Applicable vehicle type: For Land Rover

The automotive petrol filter element (also known as the petrol filter) is a critical component within the fuel supply system, designed to filter impurities and particulates from petrol, thereby safeguarding the proper functioning of the engine's fuel injection system. Typically positioned between the fuel tank and the engine's fuel pump, or near the fuel pump outlet, the petrol filter comprises the filter element itself, an outer housing, and inlet/outlet ports. Its core component is the filter media, typically crafted from multiple layers of fibrous filter paper or polymeric filter material. This effectively intercepts minute particles, moisture, and gummy impurities within the petrol, ensuring clean fuel reaches the engine. The filter housing is generally constructed from plastic or metal, with an internal design that facilitates smooth fuel flow through the element while preventing backflow of contaminants. Additionally, petrol filters are usually fitted with sealing gaskets or connectors at the inlet and outlet ports to guarantee a secure seal during installation and prevent fuel leakage.

The primary function of a petrol filter is to remove contaminants from the fuel, including dust, rust, metal particles, and rubber granules. Should these contaminants enter the engine's fuel injection system unfiltered, they may cause injector blockages, fuel pump wear, or diminished engine performance. By installing a fuel filter, these impurities are trapped within the element, allowing only clean fuel to reach the engine. This safeguards the fuel system's precision components from abrasion and corrosion.

The operating principle of a petrol filter relies on the interception effect of its filtration media. When petrol enters through the filter inlet, it first passes through an outer coarse filtration layer that traps larger particles. It then sequentially traverses multiple fine filtration layers, progressively removing smaller contaminants. Depending on the filter's material and construction, filtration precision typically reaches the micrometre level, capable of intercepting microscopic particles invisible to the naked eye. The internal fibre or microporous structure of the filter element provides an extensive surface area, increasing contact opportunities with the fuel and thereby capturing impurities more effectively. When the filter element becomes sufficiently clogged with impurities, flow resistance increases, requiring the fuel pump to exert greater pressure to deliver fuel to the engine. At this point, the filter element must be replaced. The operational process of a petrol filter element can be summarised simply as follows: fuel flows through the filter element, impurities are retained within it, and clean fuel exits.

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