In-line fuel filters

The range of Mann + Hummel in-line fuel filters starts with the PreLine® preliminary filter for the separation of water and includes the main fuel filter with single or duplex versions, right up to duplex filters with changeover. The filtration characteristics are mainly defined by the spin-on filter used of the filter media.


The benefits at a glance:

  • Easy fitting in existing lines
  • robust, stable cast aluminium design
  • More flexibility can be added to the stadard version by the addition of an optional optical or electrical service switch (see pages 106 + 107)
  • Duplex types with changeover are available and are particularly suitable for marine applications
  • Low pressure drop
  • proven quality of the Mann + Hummel spin-on filter


dimensions & details



Our inline fuel filters consist of a head with connection threads and mounting elements, and the MANN+HUMMEL spin-on filter.



You should set the service indicator or service switch and bypass valve in such a way that the end of the service interval is reached before the bypass valve opens.


Available versions:

  • with service indicator
  • with service switch (make/break contact convertible)

In-line fuel filters