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QUALITY PARTS

  • Fuel Pressure regulator replaces GM# 25519368 for 1986-1987 Buick Grand National, Turbo Regal & GNX and the correct polymer o-ring for the fuel rail return line
  • The correct polymer O-ring for the fuel rail return line is included in this fuel pressure regulator item which replaces GM # 25519368
  • Fuel Pressure regulator replaces GM# 25519368 for 1986-1987 Buick Grand National, Turbo Regal & GNX comes with the correct polymer O-ring for the fuel rail return line.
  • Highway Stars includes a VITON O-ring with our Fuel pressure regulator

    • Regulator, Fuel Pressure - replaces GM# 25519368 for 1986-1987 Buick Grand National, Turbo Regal & GNX

    MSRP: $109.95
    Was: $109.95
    Now: $87.95
    (You save $22.00 )
    (1 review) Write a Review
    SKU:
    25519368 R
    UPC:
    091769065195
    Condition:
    New
    Availability:
    Will ship directly from Highway Stars
    Adding to cart… category.add_cart_announcement

    Product Description

    Brand-new Highway Stars exclusive OE+ fuel pressure regulator developed by Highway Stars for 1986 and 1987 Buick Turbo Regal, Grand National and 1987 GNX which replaces GM# 25519368

    This Highway Stars exclusive regulator features:

    1. A black body as was factory original for all Buick Turbo Regals
    2. All stainless steel internal parts to long resist corrosion
    3. Slightly higher pressure than stock (42-43 psi) to get the full rated volume out of your fuel injectors
    4. A far superior, special diaphragm material compatible with all gasolines and gasoline/alchohol blends up to and including E85 and 100% Ethanol

     We are not aware of a better OE regulator available.

    (Although we have not confirmed what other models/years this regulator may fit, it MAY fit other models/years. Since there are no returns on this part, Please check your application first, to confirm whether or not this will fit your year/make/model ). 



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    • 5
      Highway Stars Fuel pressure regulator

      Posted by Rob K. on 4th May 2026

      I just ordered the new Highway Stars fuel pressure regulator on my 1986 Buick T-type and it works great! I like the fact that it has stainless steel internal parts and the rubber components are ethanol resistant. I had previously ordered another brand and the threads were not tapped correctly. This regulator installs into the fuel rail and I also installed a new return fuel line. Another great product engineered to be better than the original by Highway Stars!