How Do You Determine Which Racor Filter to Use for Different Engine Types?


Quick Answer

Equipment owners determine the Racor filter to use based on the application, operating climates and the fuel quality. Space limitations, filter rating and the needed options also determine the type of filter to use.

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Full Answer

For poor-quality fuel, equipment owners use a primary filter of 30 microns, while for high-quality fuels, they use secondary filters of either 10 or 2 microns. Additionally, the filter location must provide adequate space to allow for the removal of the element. For primer pump applications, the space must allow easy operation of the pump and the draining of contaminants from the bowl. Before purchasing a Racor filter, a customer must determine whether he needs a water probe, an in-bowl heater or both. Diesel or kerosene engines use filters with an in-bowl water probe, but using these filters in gasoline applications may cause explosions.

Customers use Racor filters marked with the suffix “MA” or “MAM” for marine applications. According to the American Boat and Yacht Council, all marine engine components must have the capacity to withstand fire for two and half minutes, and Racor designs its marine filters to meet those standards. Racor marine filters have a matte finish stainless steel bowl with their labels marked in blue, while turbine filters have a “FH” or “FG” suffix.

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