2PCS Oxygen Sensor Replacement for 15717, Upstream O2 Sensor, Heated 4-Wire, Direct Fit OEM Compatible with Ford F-150/Expedition/Taurus, Lincoln Town Car/Navigator/Continental, Mercury Grand Marquis

Key Features ✔ Support Proper Engine Operation & System Stability A malfunctioning oxygen sensor may cause drivability issues and trigger Check Engine Light warnings. This upgraded upstream oxygen sensor is designed to: * Provide consistent oxygen signal feedback to the ECU * Support accurate air-fuel ratio monitoring * Help maintain stable engine operation * Deliver consistent sensor response during normal driving conditions * Address common oxygen sensor–related warning indicators ✔ Fast Warm-Up & Stable Sensor Response * Rapid heating for quicker sensor activation * Reliable performance after cold starts * Consistent signal output under varying driving conditions * Stable response during city and highway driving * Designed for continuous operation immediately after engine start ✔ Durable Construction * Advanced porous ceramic protective layer * Maintains stable signal performance over time * Suitable for high-temperature exhaust conditions * Engineered to withstand vibration and thermal cycling * Built for long-term durability and reliable operation ✔ OEM-Quality Fit & Reliable Replacement * Manufactured to OEM design and production standards * Fully automated production with 100% functional testing * Direct-fit replacement with no modifications required * OE-style connectors for secure installation * Consistent quality and dependable performance Replaces OE Number: 15717, 234-4127, 234-4045, 234-4609, 234-4610, 234-4070, 234-4071, 234-4374, 234-4001, 11171843, SG1803, OS2650, DY1040, 5C5Z9F472BA, XC2Z9F472BA, 22060, 2344045, SU2191, S9233, 2344609, SU10695 ✔ Wide Vehicle Compatibility Fits for Ford: 1998–2011 Crown Victoria V8 4.6L 2000–2007 Taurus V6 3.0L 1994–1995 Mustang V6 3.8L 1994–1995 Mustang V8 5.0L 1995–1995 Mustang V8 5.8L 2002–2005 Thunderbird V8 3.9L 2000–2004 Focus L4 2.0L 1996–2005 Explorer V6 4.0L 2002–2005 Explorer V8 4.6L 1996–2001 Explorer V8 5.0L 1997–1997 F-150 L6 4.9L 1997–2003 F-150 V6 4.2L 1997–2003 F-150 V8 4.6L 1997–2003 F-150 V8 5.4L 2004–2004 F-150 Heritage V6 4.2L 2004–2003 F-150 Heritage V8 4.6L 2004–2003 F-150 Heritage V8 5.4L 1999–2004 Expedition V8 4.6L 1999–2004 Expedition V8 5.4L 1990–1996 E-150 Econoline L6 4.9L 1997–2002 E-150 Econoline V6 4.2L 1997–2002 E-150 Econoline V8 4.6L 1990–1996 E-150 Econoline V8 5.0L 1997–2002 E-150 Econoline V8 5.4L 1990–1996 E-150 Econoline V8 5.8L 1990–1996 E-150 Econoline Club Wagon L6 4.9L 1990–1996 E-150 Econoline Club Wagon V8 5.0L 1990–1996 E-150 Econoline Club Wagon V8 5.8L 1990–1996 E-250 Econoline L6 4.9L 1990–1996 E-250 Econoline V8 5.8L Fits for Lincoln: 1991–2011 Town Car V8 4.6L 1998–2006 Navigator V8 5.4L 1995–2002 Continental V8 4.6L 1991–1994 Continental V6 3.8L 1993–1995 Mark VIII V8 4.6L 2002–2002 Blackwood V8 5.4L Fits for Mercury: 1998–2011 Grand Marquis V8 4.6L 1999–2002 Cougar L4 2.0L 1995–2002 Cougar V6 2.5L 1991–1995 Cougar V6 3.8L 1994–1995 Cougar V8 4.6L 1991–1993 Cougar V8 5.0L 1998–2005 Sable V6 3.0L 2004–2007 Monterey V6 4.2L 2005–2008 Mariner L4 2.3L 2009–2009 Mariner L4 2.5L 2005–2009 Mariner V6 3.0L 1998–2008 Mountaineer V6 4.0L 2002–2008 Mountaineer V8 4.6L 1998–2001 Mountaineer V8 5.0L Fits for Mazda: 1998–2001 B2500 L4 2.5L 1998–2007 B3000 V6 3.0L Package Includes: 2 x Oxygen Sensor

• 【Wide Vehicle Compatibility】: Compatible with Ford F-150 (1997–2003), Ford Crown Victoria (1998–2011), Ford Explorer (1996–2005), Ford Expedition (1999–2004), Ford Taurus (2000–2007), Lincoln Town Car (1991–2011), Lincoln Navigator (1998–2006), Mercury Grand Marquis (1998–2011), Mercury Mountaineer (1998–2008), and Mazda B3000 (1998–2007). Please use the 'Amazon Confirmed Fit' tool to verify your vehicle before purchasing.
• 【OEM Design & Precision Manufacturing】: Engineered to meet or exceed OEM design and manufacturing standards. Produced on fully automated production lines with precise process control and in-line automated inspection, ensuring 100% functional testing for consistent quality and reliable operation.
• 【Fast Heating & Rapid Sensor Activation】: Features an innovative symmetrical chip structure that positions the heating element closer to the signal circuit, improving heat transfer efficiency. Enables faster warm-up and quicker sensor activation for improved cold-start performance. Delivers accurate and stable oxygen feedback to the ECU to support precise air-fuel ratio control and smooth engine operation.
• 【Accurate Air-Fuel Ratio Feedback】: Designed to provide precise upstream oxygen measurements before the catalytic converter, helping the ECU make real-time fuel adjustments. Supports improved throttle response, stable idle, and consistent engine performance across different driving conditions.
• 【Durable Construction for High-Temperature Exhaust Conditions】: Constructed with a co-fired porous ceramic protective layer using premium imported materials. Designed to maintain stable signal accuracy and long-term performance in high temperatures.
• 【Hassle-Free Direct-Fit Installation】: Designed as a true direct-fit replacement with OE-spec connectors and pre-coated anti-seize threads. Plug-and-play installation requires no modifications, saving time and ensuring a secure, reliable fit.