seems to show exactly where it would be. I personally don't own a 4runner, but hope this website helps...
(See related links)
the fuel filter is located above the starter
The fuel filter 4runner v6 sr5 is located under the car, underneath the the front passenger seat behind the chassis..
under the intake manifold
how to replace a fuel filter on a 1998 montecarlo how to replace a fuel filter on a 1998 montecarlo
the fuel filter is in the tank.
In the fuel filter pocket
The fuel filter on 1998 Dodge trucks, Dakota, and full size trucks and vans have the fuel filter located inside the fuel tank, It is a non replacable filter.
The fuel filter is located on the drivers
beside the block on right under intake in your right
The fuel filter is located in the gas tank.
The fuel filter is mounted under the vehicle on the frame rail directly over, and somewhat hidden by, the crossmember.
in the fuel tank