IMPORTANT: The filter is secured and sealed to the filter housing with an O‑ring. The O‑ring may remain on the filter
housing. The O‑ring should be removed before installing the fuel filter.
Fuel filter
Filter Installation
a - Fuel filter O‑ring seal
b - Fuel filter
c - Red ring
d - Sight bowl O‑ring seal
e - Sight bowl
1. Install the fuel filter O‑ring seal into the fuel filter. Verify the O‑ring does not have any folds or kinks.
2. Lubricate the O‑ring with clean engine oil.
3. Push the fuel filter element onto the filter housing. Verify the filter is completely installed by pushing on the filter in the
locations shown in the following illustration.
4. Install the sight bowl O‑ring seal onto the sight bowl and place the red ring into the sight bowl.
Maintenance
Page 1B-6 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017