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Maintenance and Service 55
Fuel Filters
A primary fuel filter can be located on the engine or remote mounted on the
frame rail. This filter consists of a filter cartridge, a water separation bowl and
may have a fuel heater built in.
The secondary fuel filter is located on the left hand side, below the engine
electronic control unit (EECU). The filter is a spin-on filter.
D11F and D13F Engine-Mounted Fuel Filters (D13F shown, D11F similar)
1. Secondary Fuel Filter 2. Primary Fuel Filter with Water
Separator
USA22978.bk.book Page 55 Wednesday, July 9, 2008 9:09 AM