Walker Products Engine Magement and Oxygen Sensor / Air-Fuel sensors have been engineered and developed to be an Origil Equipment Manufacturers replacement for many vehicles worldwide. Every part number is manufactured for the specific application, fitment position on the vehicle, and will provide the relevant diagnostic system feedback as required by the ECU. Newer vehicles will store fault codes in the ECU, some will relate to the affected sensor and its associated systems. A failed sensor might make itself known by causing the engine to run poorly, increase fuel consumption, exhaust emissions, or illumiting a (MIL) malfunction indicator light. The sensor, wiring harness, and connector should also be checked for physical damage. This will most likely also cause their operatiol life to be shortened. We are an Automotive ISO9001/TS 16949 certified company, with un-paralleled customer service, marketing, and shipping. Our electronic and paper catalogs are designed for today's fast paced marketplace, along with our eye catching packaging. Since 1946, Walker Products has been the number one choice for the engine magement sensors and fuel system components needed for your vehicle. Fit: 2012-2018 Harley Davidson FLD Switchback, FLS Softail Slim, FLSS Softail Slim S, FLSTC Heritage Softail Classic, FLSTF Fat Boy, FLSTFB Fat Boy Lo, FLSTFBS Fat Boy S, FLSTN Softail Deluxe, FLSTNSE CVO Softail Deluxe, FLSTSE3 CVO Softail Convertible, FXDB Street Bob, FXDC Super Glide Custom, FXDF Fat Bob, FXDL Low Rider, FXDWG Dy Wide Glide, FXS Blackline, FXSB Breakout, FXSBSE CVO Breakout, VRSCDX ANN V-Rod Anniversary Edition, VRSCDX Night Rod Special, VRSCF V-Rod Muscle, XG500 Street 500, XG750 Street 750, XG750A Street Rod, XL1200C Sportster 1200 Custom, XL1200CX Roadster, XL1200T SuperLow 1200T, XL1200V Seventy-Two, XL1200X Forty-Eight, XL883L SuperLow, XL883N Iron 883