Upstream Oxygen Sensor O2 234-4396 for Mazda 3 (2004–2005) Mazda 5 (2006–2007) 2.0L 2.3L L4

Includes: - Upstream Oxygen Sensor O2 234-4396

Fits Models: - Mazda 3 - Mazda 5

Model Years: - 2004–2007

Submodels: - Mazda 3: i, s, Sport, BK - Mazda 5: Sport, Touring, Grand Touring, CR19

Engine Options: - Mazda 3: 2.0L L4 (Zy), 2.3L L4 (MZR) - Mazda 5: 2.0L L4 (Zy), 2.3L L4 (MZR)

Description: This upstream oxygen sensor is designed for specific Mazda models, ensuring optimal engine performance and emissions control. It monitors the oxygen levels in the exhaust gases, allowing the engine control unit to adjust the air-fuel mixture for improved efficiency.

Features: - Direct fit for Mazda 3 and Mazda 5 models - High-quality construction for durability - Enhances fuel efficiency and reduces emissions - Easy installation with no modifications required - Compatible with standard engine options