Heavy-duty filter guides
Practical guides to heavy-duty filter ratings, selection, installation and maintenance, written for fleet maintenance teams and parts buyers.
Hydraulic filter micron rating and beta ratio explained
A micron number on its own does not tell you how clean a filter keeps your hydraulic oil. The beta ratio does. This guide shows how to read both.
Filter collapse pressure, pressure drop and bypass valves
A filter has to keep catching dirt as it loads without breaking up. Three numbers decide whether it does: pressure drop, collapse pressure and the bypass setting.
Spin-on filters vs filter elements: how to choose
Most heavy-equipment filters come in one of two forms: a sealed spin-on can or a replaceable element in a permanent housing. Your machine's filter head decides which you need.
How a fuel water separator works
Water is one of the main threats to a diesel fuel system. A fuel water separator removes it before it reaches the injection pump and injectors.
Heavy equipment filter change intervals: what should set them
There is no single right number of hours for a filter change. The schedule comes from the machine maker, and it should be adjusted by working conditions and measured condition.
How to install a spin-on filter correctly
Most spin-on filter failures in service start at installation: a double gasket, a dry seal or a can tightened with a wrench. These steps avoid them.
Oil filter thread size chart for heavy-duty spin-on filters
This chart lists every spin-on thread in our catalogue, for oil filters and for the fuel, hydraulic and coolant spin-ons that share the same threads.