Precision Fuel System Service
Four Star Accessory Overhaul provides specialized fuel accessory repair & overhaul services in contamination-controlled environments, ensuring the precision and cleanliness critical to reliable fuel system operation across all aircraft types.
Fuel System Components
Fuel system accessories demand exceptional attention to contamination control and precision tolerances - even microscopic particles can cause valve malfunctions or nozzle blockages that affect engine performance. Our dedicated fuel accessory facilities maintain the clean environments and specialized equipment these components require.
Aircraft Fuel Pump Overhaul
Four Star provides fuel pump overhaul and repair for components that transfer fuel, maintain pressure, and deliver backup power when needed. Each pump is serviced in contamination-controlled environments, where it’s disassembled, ultrasonically cleaned, inspected, resealed, and flow-tested to verify precise pressure and volume delivery. Our process restores reliability, preventing issues like seal wear, bearing damage, and cavitation.
Fuel Control Unit (FCU) Repair




