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Fuelab
Digital Fuel Delivery 

525 Series In-Line Fuel Pressure Regulators

FUELAB™ 525 Series Fuel Pressure Regulators are designed with performance and flexibility in mind. They accept port style and non-port style union fittings without interference. Several configurations are available, supporting carbureted applications as low as 1 PSID to fuel injected applications up to 125 PSID. The 525 Series has its return port in-line with the inlet port (not on the bottom) which allows for easy installation in extremely tight locations.

Fuelab 2008 Catalog


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Fuel Pressure Regulator Features:

  • Easy installation in extremely tight locations

  • -6AN inlet and -6AN return port in-line

  • 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

    52501-C Standard Seat / EFI (25-90 PSID)
    52502-C Large Seat / Carbureted (4-12 PSID)
    52503-C Select Seat Size / Select Pressure Range
    Special Order Only
  • C = Color Code:
    1 Black / Black
    2 Red / Clear
    3 Blue / Clear
    4 Purple / Clear
    5 Gold / Black
    6 Green / Clear

    S = Seat Size Code:
    S Standard Seat (Return Orifice)
    L Large Seat (Return Orifice)

    P = Pressure Range Code:
    L (Approx) 1-3 PSID
    C (Approx) 4-12 PSID
    T (Approx) 10-25 PSID
    E (Approx) 25-90 PSID
    G (Approx) 90-125 PSID

    FUELAB Digital Fuel Delivery:  Fuel Pumps, Fuel Pressure Regulators & Fuel Filters

    Home ] Up ] Fuelab Prodigy Fuel Pumps ] Fuelab 515 Fuel Pressure Regulators ] [ Fuelab 525 Fuel Pressure Regulators ] Fuelab 818 Series In-Line Filters ] Fuelab 828 Series In-Line Fuelab Filters ] Fuelab 718 Series Replacement Filter Elements ]

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