Cummins 4BT – Fuel Filter – Replacement

80 to 95 mm, Filter Wrench
Remove the combination water separator/fuel filter.

80 to 95 mm, Filter Wrench
If used, remove the two filters from the dual filter adaptor.

24 mm, Flat Blade Screwdriver

If a leak is found, remove the dual filter adapter and replace the o-rings.
Torque Value: 32 Nยปm [24 ft-lb]

Fill the new filter(s) with clean fuel.

Lubricate the seal with clean lubricating oil.

91 model and newer automotive B series engines that are equipped with the Bosch P7100 in-line fuel injection pump
have the fuel filter mounted at the rear of the intake manifold as shown.