- Compatible with Polaris RZR 570, 1000 XP, and XP 4 1000 models; replaces OEM part numbers 4016021, 4013979, 28488580, and 37950H99D00. - Constructed from temperature-resistant materials that ensure durability, oxidation resistance, and high-temperature performance. - Designed to meet emission standards effectively. This oxygen sensor helps improve fuel efficiency while minimizing harmful emissions, making it an eco-friendly choice. - Pre-tested for precision and reliability, ensuring optimal vehicle performance and compliance with environmental regulations. - Easy installation with included connectors, allowing for quick replacement without professional assistance. Use Scenarios: 1. Ideal for off-road enthusiasts looking to maintain their Polaris RZR's performance while adhering to emission standards. 2. Perfect for routine maintenance or replacement during engine diagnostics to ensure optimal fuel efficiency and reduced environmental impact. 3. Suitable for those who frequently drive in varying temperatures, as the robust construction withstands extreme conditions without compromising functionality.