- O2 Sensor Pack of 2: This set includes one upstream sensor (Part No. 234-9005, replaces 144415) and one downstream sensor (Part No. 234-4125, replaces 138274), ensuring comprehensive coverage for your vehicle's oxygen monitoring system. - Compatibility: Designed specifically for Honda CR-V models with a 2.4L L4 engine from the years 2002, 2003, and 2004. This precise fit helps maintain optimal engine performance and fuel efficiency. - Easy Selection Process: To ensure you select the correct oxygen sensor, follow these steps: 1. Verify the OE number of your existing sensor. 2. Confirm compatibility with your vehicle model. 3. Use the "Amazon Confirmed Fit" feature to double-check before purchasing. - Key Benefits: - Improved Fuel Efficiency: By accurately monitoring the oxygen levels in your exhaust, these sensors help ensure your engine runs efficiently, reducing fuel consumption. - Enhanced Engine Performance: Proper functioning oxygen sensors contribute to better engine performance by optimizing combustion and minimizing harmful emissions. - Reliability: Designed to meet or exceed OEM specifications, these sensors provide durability and long-lasting performance. - Practical Use Scenarios: 1. Replace faulty sensors to resolve check engine light issues and prevent further damage to the engine. 2. Upgrade old sensors to restore your vehicle's fuel economy and driving performance. 3. Ideal for DIY enthusiasts looking to perform routine maintenance and ensure their Honda CR-V remains in top condition. - Material and Performance: Constructed from high-quality materials to withstand extreme temperatures and environmental conditions, these sensors deliver reliable performance under all driving scenarios.