Engine Parts Filter Housing New diesel filter seat PL420 PL270 Fuel Filter head with high pump

General information

Compatible: PL420/PL270 fuel water separator filter base with pump
Replacement filter part numbers: K1006530, K1006520, 400403-00022, PL270 x, PL420 x, PL420, PL270.
Material: CNC billet aluminum, durable and corrosion resistant.
Thread size: 1-14. Inlet thread size: M18*1.5. Outlet thread size: M18*1.5.
The package includes: 1 x fuel filter base, 1 x bolt, 1 x bolt washer.

Installation  Material

Fuel filter base
Oil absorbing pad
Disposable gloves
tissue
Plastic zipper bag

Installation tool

wrench
screwdriver
Small funnel

Installation Precautions

1. (Close the fuel cock (if installed) to prevent fuel from draining or siphoning out of the fuel tank, then place a suitable container under the main filter to collect any spilled fuel. Put some suction pads to catch the inevitable Spills.

In most types of engines, the layout of the fuel system is not much different. The fuel is drawn from the fuel tank through the primary filter through the lift pump installed on the motor. From there, the fuel is pushed through one or more secondary filters to the fuel injection pump, which delivers the fuel to the injectors in each cylinder at a higher pressure. Because the fuel injector pump delivers more fuel than can be used, the excess fuel is returned to the fuel tank. Some modern engines are so-called “common rail”, where the fuel injector is supplied by a special type of pipe (common rail) instead of being supplied separately from the fuel injection pump. The fuel system of these engines is different, but in most cases, the filter system will be similar to that described.

After replacing the filter base, you may have to bleed the fuel system

Check your work carefully, then open the fuel cock (if installed). Bleed air from the fuel system. (The bleed process differs for the specific engine. Please consult your manual.) Start the engine and check for leaks. If the engine fails to start, there may be air leakage from the primary filter or the suction side of the lift pump. In this case, please check your work again. Air leaks are usually caused by incorrect assembly of the filter assembly, or you may need to exhaust the engine again.

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