FUELAB 565 Series High Flow Fuel Pressure Regulator




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FUELAB 565 Series Fuel Pressure Regulators have all of the same great features as the 515/525 Series with extreme capacity. Utilizing a massive 1/2" return orifice and -10AN ports, these regulators hold no bounds.

With the bypass capability over 5 GPM at 5 PSI, this new regulator can handle blow through carbureted applications well over 1800HP, and for EFI applications using belt driven fuel pumps; even further (with a flattened regulation slope).

Regulator comes in four different pressure ranges covering applications between 4 and 80 PSI. Available in black only.
  • Two -10AN inlet ports and one -10AN return port
  • 1.75" sized diaphragm with 1/2" return orifice
  • Gasoline, diesel, methanol, and ethanol fuel compatible
  • Billet Aluminum with anodize per military MIL-A-8625, Type II
  • Fine thread pitch for precise pressure adjustment
  • Versatile mounting bracket and stainless steel hardware
  • 1/8” NPT gauge port with plug for external pressure gauge
  • 1/8” NPT pressure reference port with barbed fitting
  • Backed by a 2-year limited warranty

FUELAB Technical Data Sheet:
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FUELAB High Flow Fuel Pressure Regulators

Part Number Inlets Seat Application
56501 -10AN MAX FLOW 1/2" Seat EFI (25-65 PSID)
Electronic Fuel Injection
56502 -10AN MAX FLOW 1/2" Seat CARB (4-12 PSID)
56503 -10AN Standard Seat TBI (10-25 PSID)
Throttle Body Injection
56504 -10AN MAX FLOW 1/2" Seat EFI (40-80 PSID)
Electronic Fuel Injection
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