A cyclonic separator (10) separates contaminants from liquid fuel. The separator includes a body (12) having a base portion (14) and sidewall structure (16) extending from the base portion. The base portion and sidewall structure define an internal volume (V). An inlet port (18) in the body communicates with the internal volume, and an outlet port (20) in the body also communicates with the internal volume. The sidewall structure is constructed and arranged to cause fuel, containing a mixture of liquid fuel and contaminants, that enters the inlet port, to move in a generally circular manner in the internal volume so that the contaminants (P) separate from the liquid fuel, with the contaminants settling in the base portion and the liquid fuel (F') moving through the outlet port.