Walker Products Walker Products 243-1003 Genuine OE Flex Fuel Sensor

Walker Products Flex Fuel Sensor #243-1003 is a Genuine OE sensor, made in the USA and designed to deliver accurate ethanol content readings from 0% to 100%. Outputting a frequency signal from 50 Hz to 150 Hz, this sensor communicates seamlessly with factory and aftermarket systems using OE #13577429 protocols. Engineered with 3/8" quick-connect inlet and outlet fittings, it installs easily in both original equipment and high-performance fuel systems. While ideal as a direct OE replacement on factory flex fuel vehicles, it has also become the industry-standard sensor for high-performance builders converting to E85 or other ethanol blends. Benefits of higher ethanol use include cooler cylinder temperatures, increased octane, reduced engine knock, and improved power potential. Fully compatible with aftermarket ECUs, digital gauges, flex fuel kits, tuners, and mobile apps, this sensor offers unmatched reliability, precision, and versatility. Trust Walker Products to deliver Genuine OE quality for street or track. About this item Package Contents: One (1) Unit - Walker Products 243-1003 Genuine OE Flex Fuel Sensor; See Amazon Confirmed Fit to verify vehicle compatibility Flex Fuel Compatibility: Ideal for OE replacement applications and high-performance E85 flex fuel conversions Accurate Ethanol Measurement: Measures ethanol content from 0% to 100% with fast, precise frequency output OE Signal Performance: Delivers a 50 Hz to 150 Hz output signal compatible with OE #13577429 systems and protocols Easy Installation & OE Quality: Features 3/8" quick-connect fittings for seamless fuel line integration and is a genuine USA-made OE sensor for trusted reliability › See more product details