Flex Fuel Sensor for 2014-2018 Chevrolet Silverado 1500 & More - Walker 243-1003

$118.99
WARNING:California Proposition 65▾
Walker Products Flex Fuel Sensor 243-1003
Walker Products Flex Fuel Sensor 243-1003 - view 2
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Walker Products Flex Fuel Sensor 243-1003
Walker Products Flex Fuel Sensor 243-1003 - view 2
Walker Products Flex Fuel Sensor 243-1003 - view 3
Walker Products Flex Fuel Sensor 243-1003 - view 4

Vehicles this part fits
    Part number: 243-1003
    UPC: 724620138515
    Condition: New
    Weight: 0.58 LBS
    Item Package Code: EA
    Part Has Core (Y/N): N
    Item Package Quantity: 1
    $118.99
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    Walker Products Flex Fuel Sensor P/N:243-1003
    Walker Products Flex Fuel Sensor P/N:243-1003
    $118.99
    $118.99

    Walker Products 243-1003 flex fuel sensor for the 2014-2018 Chevrolet Silverado 1500 V6 4.3L or V8 5.3L and other vehicles reads the ethanol content of the fuel and sends it out as a frequency signal. It suits factory flex fuel vehicles as well as high-performance builds converting to E85 or other ethanol blends.

    • Measures ethanol content from 0% to 100%
    • Frequency output from 50 Hz to 150 Hz
    • 3/8" quick-connect inlet and outlet fittings
    • Works with aftermarket ECUs, digital gauges, flex fuel kits, tuners and mobile apps

    Quick facts

    • Part: Walker Products 243-1003 flex fuel sensor
    • Fits: 2014-2018 Chevrolet Silverado 1500 V6 4.3L or V8 5.3L and other vehicles

    A check-engine light, rough running on ethanol blends or an ethanol reading that looks off can mean the flex fuel sensor is worn, though a weak fuel pump or a damaged wiring connector can be behind the same signs, so find the cause before replacing it.

    Fits

    This sensor is a direct-fit replacement for many vehicles. The others it fits include the 2014-2018 GMC Sierra 1500 V6 4.3L or V8 5.3L, the 2013-2016 Chevrolet Equinox V6 3.6L and the 2013-2017 Equinox 4-cylinder 2.4L. A 2014-2018 GMC Sierra 1500 V6 4.3L or V8 5.3L takes one sensor. If your car isn't named here, open the "Vehicles it fits" section and look up your exact model and engine.

    Specifications

    Fit and size

    • Quantity per vehicle: 1
    • Fittings: 3/8" quick-connect, inlet and outlet
    • Connector quantity: 1
    • Terminal quantity: 3

    Build and materials

    • Ethanol measuring range: 0% to 100%
    • Signal output: frequency, 50 Hz to 150 Hz
    • Connector: female, oblong shape
    • Terminals: male, blade pin
    • Country of origin: United States

    Interchange: 5S13811 · FFS3 · FSA1203FFS · SE1004S · SU15217

    This part cross-references / interchanges with the following part numbers:

    5S13811, FFS3, FSA1203FFS, SE1004S, SU15217

    Frequently Asked Questions

    Does the Walker Products 243-1003 flex fuel sensor fit the 2014-2018 GMC Sierra 1500 V6 4.3L or V8 5.3L?

    Yes. Walker Products 243-1003 fits the 2014-2018 GMC Sierra 1500 V6 4.3L or V8 5.3L. Open the "Vehicles it fits" section to check your exact model and engine.

    What size are the fuel line fittings on the Walker Products 243-1003?

    Walker Products 243-1003 has 3/8" quick-connect fittings on both the inlet and the outlet.

    Can this flex fuel sensor be used for an E85 conversion?

    Yes. Builders converting to E85 or other ethanol blends also use it, and it works with aftermarket ECUs, digital gauges, flex fuel kits, tuners and mobile apps.

    How many pins does the electrical connector on this flex fuel sensor have?

    The sensor has one oblong female connector with three male blade pin terminals.

    Is the Walker Products 243-1003 interchangeable with FFS3?

    Yes. FFS3 is one of the numbers listed as an interchange for Walker Products 243-1003, along with 5S13811, FSA1203FFS, SE1004S and SU15217.

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