Fuel pump for Volvo Penta GM V-8 305 350 RO: 826493-9 18-7281 826493

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Poseidon Marine mechanical fuel pump assembly.

This fuel pump will fit only :
500A 500B 501A 501B
570A 571A 572A
AQ200D AQ200F AQ211A
AQ225D AQ225E AQ225F BB225A BB225AV BB225B BB225C
AQ231A AQ231B BB231A AQ255B
AQ260A AQ260B BB260A BB260AV BB260B BB260C
AQ271A AQ271B AQ271C AQ271D
AQ280A AQ290A
AQ311A AQ311B
Reference to OEM part number: 826493 .

Mounting gasket included.

1 Year or 100hours warranty, whichever is met first.

Use of contaminated fuel or old/wrong filter voids warranty.

The lift pump draws fuel from the fuel tank, through various filters, then delivers the fuel to the injection pump. These pumps are either mechanically driven off an eccentric on the camshaft, or driven electrically. The diaphragm is pulled down by the action of the lever arm and then moves upwards by the action of the return spring.
When the diaphragm moves down, it sucks the outlet valve closed, and the inlet valve open. Because the surface of the fuel in the tank is open to atmospheric pressure, fuel is induced into the body of the pump. As the diaphragm returns upwards, it pushes the inlet valve closed, and opens the outlet valve, thus delivering fuel under pressure. Inspect your fuel pump regularly for leaking and replace according to manufacturer's maintenance schedule.


The references that are listed here are trademarks that apply to the respective trademark owners. The references are used only for a reference purpose. Our product is compatible with these reference numbers. Please note that our product is an aftermarket product (non-OEM), unless otherwise stated.