FUELAB® 555 Series Fuel Pressure Regulators are true precision instruments designed to regulate fuel. These units feature an advanced poppet design for smooth regulating capability. We’ve also incorporated a no-creep soft seat that’s methanol and E85 compatible. Adjustable from 4-12 PSI.

Sales Sheet


555 Series Carbureted Blocking Fuel Pressure Regulators

Name55501 Fuel Pressure Regulator

Description55501-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 4-12 PSI Pressure Range

Show Details55501 Fuel Pressure Regulator

Item-detailsFUELAB® 555 Series Fuel Pressure Regulators are true precision instruments designed to regulate fuel. These units feature an advanced poppet design for smooth regulating capability. We've also incorporated a no-creep soft seat that's methanol and E85 compatible. Adjustable from 4-12 PSI.

Regulator Features

  • A true precision instrument to regulate fuel
  • Advanced poppet design for smooth regulating capability
  • Gasoline, diesel, methanol, and ethanol fuel compatible
  • Methanol compatibility with a No-creep soft seat
  • 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 breather vent

55501-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 4-12 PSI Pressure Range

Product Instructions

Name55502 Fuel Pressure Regulator

Description55502-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 1-3 PSI Pressure Range

Show Details55502 Fuel Pressure Regulator

Item-detailsFUELAB® 555 Series Fuel Pressure Regulators are true precision instruments designed to regulate fuel. These units feature an advanced poppet design for smooth regulating capability. We've also incorporated a no-creep soft seat that's methanol and E85 compatible. Adjustable from 1-3 PSI.

Regulator Features

  • A true precision instrument to regulate fuel
  • Advanced poppet design for smooth regulating capability
  • Gasoline, diesel, methanol, and ethanol fuel compatible
  • Methanol compatibility with a No-creep soft seat
  • 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 breather vent

55502-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 1-3 PSI Pressure Range

Product Instructions

Name55503 Fuel Pressure Regulator

Description55503-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 10-25 PSI Pressure Range

Show Details55503 Fuel Pressure Regulator

Item-detailsFUELAB® 555 Series Fuel Pressure Regulators are true precision instruments designed to regulate fuel. These units feature an advanced poppet design for smooth regulating capability. We've also incorporated a no-creep soft seat that's methanol and E85 compatible. Adjustable from 10-25 PSI.

Regulator Features

  • A true precision instrument to regulate fuel
  • Advanced poppet design for smooth regulating capability
  • Gasoline, diesel, methanol, and ethanol fuel compatible
  • Methanol compatibility with a No-creep soft seat
  • 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 breather vent

55503-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 10-25 PSI Pressure Range

Product Instructions

Name55504 Fuel Pressure Regulator

Description55504-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 25-65 PSI Pressure Range

Show Details55504 Fuel Pressure Regulator

Item-detailsFUELAB® 555 Series Fuel Pressure Regulators are true precision instruments designed to regulate fuel. These units feature an advanced poppet design for smooth regulating capability. We've also incorporated a no-creep soft seat that's methanol and E85 compatible. Adjustable from 25-65 PSI.

Regulator Features

  • A true precision instrument to regulate fuel
  • Advanced poppet design for smooth regulating capability
  • Gasoline, diesel, methanol, and ethanol fuel compatible
  • Methanol compatibility with a No-creep soft seat
  • 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 breather vent

55504-C -8AN Inlet / (2) -8AN Outlets/ Large Seat / 25-65 PSI Pressure Range

Product Instructions

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