4PCS Oxygen Sensor Fit for Nissan Armada 2008-2013, Nissan Pathfinder 2008-2012, Nissan Titan 2008-2012, Infiniti QX56 5.6L V8 O2 Sensors Upstream & Downstream 234-9038 & 234-4835 【Vehicle Compatibility】 Compatible with 2008-2013 Nissan Armada, 2008-2012 Nissan Pathfinder, 2008-2012 Nissan Titan, and 2008-2010 Infiniti QX56 with 5.6L V8 engines. Direct fit replacement for part numbers 234-9038 and 234-4835, ensuring perfect compatibility with your vehicle's exhaust system. 【High-Quality Replacement】 This 4-piece O2 sensor set replaces your worn-out oxygen sensors, restoring fuel efficiency and optimizing engine performance. It is a direct replacement for Nissan and Infiniti vehicles that use part numbers 234-9038 and 234-4835. 【Reliable Construction】 Each oxygen sensor features a robust stainless steel shell, high-temperature rubber seals, and precision Teflon-coated insulated wires, ensuring reliable and long-lasting performance even under harsh conditions. 【Easy Installation】 Designed for quick and easy installation with no modifications required. The O2 sensors come with pre-coated threads, making the installation process hassle-free and secure, directly replacing the old sensors. 【Complete Set】 This package includes 4 oxygen sensors: 2 upstream (Bank 1 & Bank 2) and 2 downstream (Bank 1 & Bank 2), providing a complete replacement for your vehicle's exhaust system and restoring full oxygen sensor functionality.