Fuel Filter 35-802893Q01 855686

Function and Technical Context

This gasoline filter with a nominal porosity of 28 microns acts as a retention barrier for impurities, sediments and suspended particles within the fuel supply circuit, positioned between the tank and the injectors or carburetor of the marine engine. Its purpose is to intercept contaminants that, if they reach the injection system or carburetion system, would cause nozzle obstructions, premature wear on needle valves and pressure failures in the fuel pump. With a height of 4-7/16 inches, it is sized to integrate into the gasoline lines of medium and large displacement propulsion units without modifications to the existing circuit. Reference 855686 is compatible with both Volvo Penta series from the AQ, BB, 230-572, DP, SP and B block ranges, as well as professional-grade Mercruiser units, guaranteeing stable filtration even under demanding marine operating conditions where the quality of onboard fuel can vary significantly.

When to Replace This Part?

The most common symptoms of a clogged gasoline filter in marine engines are difficult cold starts, surging and loss of power under load, unstable idle and, in advanced cases, sudden engine shutdown due to lack of fuel flow. As a general rule, it is recommended to replace the gasoline filter every 100 hours of operation or at minimum once per season, taking advantage of winterization maintenance or spring tune-up. Replacing it preventatively before each season is a low-cost measure that avoids serious failures in the injection system or fuel pump, repairs that can be particularly expensive if they occur away from port.

Compatible Volvo Engines

Equivalent Manufacturer References