The fuel injectors are not common to any other engine. Each fuel rail contains three fuel injectors on V6 models, or four fuel
injectors on V8 models.
a - Fuel rail
b - Fuel injector
In‑line Fuel Filter
The in‑line fuel filter is located inside the inlet end of each fuel rail. This in‑line fuel filter consists of a one‑way, reusable filter
element. In the event of fuel contamination, the filter element can be cleaned by backflushing the element with a locally
available fuel system cleaner. Replacement is not required unless the in‑line fuel filter is damaged, punctured, or otherwise
unsuitable for use.
In-line fuel filter
Fuel System
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 7A-3