Fuel Filter - WK9056

The WK9056 filter's main role is to remove contaminants from the diesel fuel before it reaches the engine's fuel injection system, preventing damage and ensuring efficient operation.

Replacement frequency depends on vehicle usage and manufacturer recommendations. It's typically part of scheduled maintenance, often every 10,000 to 20,000 miles or annually, but always consult your vehicle's service manual.

No, the WK9056 is a disposable spin-on filter. It is designed to be replaced, not cleaned. Attempting to clean it will not restore its filtration capabilities and could damage it.

A spin-on filter is a self-contained unit that screws directly onto a filter housing. It simplifies the replacement process compared to cartridge-style filters.

The thread size is M20x1.5.

This filter is commonly used in commercial vehicles, such as buses and trucks, with specific diesel engine applications. An example is the BREDAMENARIBUS VIVACITY 8 Bus.

It has a height of 190 mm, an outer diameter of 93 mm, and its gasket has an outer diameter of 72 mm and an inner diameter of 63 mm.

Ensure the gasket is properly seated and not damaged. Tighten the filter slightly more, but do not overtighten. Check that the mating surface on the engine is clean and free of debris.

Verify the filter is correctly installed and that no air is entering the fuel system. Check if the filter is clogged prematurely, which might indicate poor fuel quality or an overly long service interval.

Double-check the thread size (M20x1.5) and outer diameter (93 mm) against your vehicle's requirements. Ensure you have the correct part number for your specific application.