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Make sure this part fits

Mercury F1SZ-9345-A Relay

1986-2006 Mercury F1SZ9345A

Customer Questions & Expert Answers (3)
F1SZ-9345-A Ford Relay Illustration 1 of 1
F1SZ-9345-A Ford Relay Illustration 1 of 1
  • Part Description
    Relay
  • Base No.
    9345
  • Manufacturer
    Ford
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A

  • Related Parts

    Shop for related parts for your vehicle

  • Product Specifications

    BrandGenuine Mercury
    Base No.9345
    Manufacturer Part NumberF1SZ-9345-A, F1SZ9345A
    Part DescriptionRelay
    Other NamesFuel Pump Relay
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF1SZ-9345-A
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1991-1994 Mercury Capri4 Cyl 1.6L4AT 4EAT, 5MT
    1999-2002, 1987-1997 Mercury Cougar4 Cyl 2.0L, 6 Cyl 2.5L, 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 4AT CD4E, 5MT
    1990-2006 Mercury Grand Marquis8 Cyl 4.6L, 8 Cyl 5.0L4AT, 4AT 4R70W, 4AT AOD, 4AT AODE
    1986-1987 Mercury Lynx4 Cyl 1.9L, 4 Cyl 2.0L3AT ATX, 4MT, 5MT
    1995-2000 Mercury Mystique4 Cyl 2.0L, 6 Cyl 2.5L4AT CD4E, 5MT
    1990-1995 Mercury Sable6 Cyl 3.0L, 6 Cyl 3.8L4AT 4F50N, 4AT AX4N, 4AT AX4S, 4AT AXOD, 4AT AXOD-E
    1990-1994 Mercury Topaz4 Cyl 2.3L, 6 Cyl 3.0L3AT ATX, 5MT
    1991-1999, 1987-1989 Mercury Tracer4 Cyl 1.6L, 4 Cyl 1.8L, 4 Cyl 1.9L, 4 Cyl 2.0L3AT ATX, 4AT 4EAT, 4AT F4E-III, 4AT IF4E, 4MT, 5MT

  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if F1SZ-9345-A fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    What happens if a Relay is defective for the 1992 Lincoln Mark VII? Posted by Isaac D.
    A:
    If a relay is defective, the component it controls will not operate properly. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist John / Jan 29, 2026
    Q:
    What can be done if a faulty Relay is suspected for the 1990 Mercury Cougar? Posted by Stanley N.
    A:
    If a faulty relay is suspected, it can be removed and tested by a dealer service department or a repair shop. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Patrick / Mar 21, 2023

Genuine Ford Part F1SZ-9345-A, the Right Choice

To ensure reliability, purchase part # F1SZ-9345-A Relay. It is also called Relay. OEM parts are of high quality and known for their longevity. This is because they are built to the Ford standards which are relatively high and undergo rigorous quality control testing. This part fits specific Mercury Capri, Cougar, Mystique models.

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