O2 Sensor Upstream for Nissan Frontier (2005 to 2009)

Includes:
- Oxygen O2 Sensor Upstream

Fits Models:
- Nissan Frontier

Model Years:
- 2005–2009

Submodels:
- Common trims include XE, SE, LE, and Nismo; chassis code D40; body styles include Crew Cab and King Cab.

Engine Options:
- Common engine sizes include 2.5L I4 (QR25DE) and 4.0L V6 (VQ40DE).

Description:
This upstream oxygen O2 sensor is designed for the Nissan Frontier from 2005 to 2009. It plays a crucial role in monitoring the exhaust gases and ensuring optimal engine performance and fuel efficiency.

Features:
- Direct fit replacement for easy installation
- High-quality materials for durability and reliability
- Improves fuel efficiency and reduces emissions
- Compatible with both 2.5L I4 and 4.0L V6 engine options
- Designed to meet or exceed OEM specifications