O2 Oxygen Sensor Front or Rear Driver Passenger Side Upstream RH LH V70 CTS

What is O2 Oxygen Sensor Front or Rear Driver Passenger Side Upstream RH LH V70 CTS?

The O2 Oxygen Sensor Front or Rear Driver Passenger Side Upstream RH LH V70 CTS is a direct-fit replacement sensor engineered for select Nissan vehicles including the Altima, Maxima, Murano, and Quest equipped with 3.5L V6 engines from 2004 to 2008. This upstream oxygen sensor monitors exhaust oxygen levels in real time, enabling the engine control unit to optimize the air-fuel mixture. Proper sensor function supports efficient combustion, improved fuel economy, and lower emissions. When the original sensor fails—triggering a check engine light or reduced performance—this replacement helps restore factory-level operation without requiring modifications.

Key features

• Exact Fit — Matches OEM specifications for Nissan 3.5L models 2004–2008.
• Upstream Placement — Monitors exhaust gases pre-catalytic converter for real-time fuel trim.
• Plug-and-Play Connector — Factory-matching electrical connector; no splicing or programming needed.
• Durable Construction — Built to withstand high-temperature exhaust environments.
• Direct Replacement — Replaces front or rear driver/passenger side upstream O2 sensors on compatible models.
• Heat Shield Compatible — Works with OEM heat shields for added protection.
• Emissions & Efficiency — Helps reduce harmful emissions and restore lost fuel economy.

Who is O2 Oxygen Sensor Front or Rear Driver Passenger Side Upstream RH LH V70 CTS for?

This sensor is ideal for DIY mechanics maintaining 2004–2008 Nissan models with 3.5L V6 engines. It suits owners of Altima, Maxima, Murano, and Quest vehicles experiencing check engine lights, poor fuel economy, or failed emissions tests due to a faulty upstream O2 sensor. Its straightforward installation makes it accessible for intermediate-level home mechanics using basic tools.

How does O2 Oxygen Sensor Front or Rear Driver Passenger Side Upstream RH LH V70 CTS compare?

Compared to universal oxygen sensors requiring wire cutting and splicing, this model offers a factory-style plug-and-play upgrade with guaranteed compatibility for specific Nissan applications. It avoids the complexity and risk of incorrect wiring. While not a wideband performance sensor for tuning, it delivers reliable closed-loop feedback for daily drivers. It matches OEM function at a lower cost than dealership-sourced parts, making it a practical choice for economical, emissions-conscious repairs.