2Pcs Up & Downstream Oxygen Sensor For 04-06 Scion xA xB 1.5L 234-4524 234-4069

What is 2Pcs Up & Downstream Oxygen Sensor For 04-06 Scion xA xB 1.5L 234-4524 234-4069?

This 2-piece oxygen sensor set includes one upstream and one downstream O2 sensor designed specifically for 2004–2006 Scion xA and xB models with the 1.5L engine. It replaces OEM part numbers 234-4524 and 234-4069, ensuring direct fitment without modifications. These brand-new, high-quality sensors monitor exhaust oxygen levels to help your engine maintain optimal air-fuel balance, improving fuel economy and reducing harmful emissions. They are also compatible with 2003–2005 Toyota Echo 1.5L models, making them a versatile choice for Toyota-based platforms.

Key features

• Direct Fit — Engineered to match factory specifications for 04–06 Scion xA/xB 1.5L.
• Complete Set — Includes both upstream and downstream sensors for full system replacement.
• 4-Wire Configuration — Matches original design for seamless electrical integration.
• OEM Replacement — Replaces 234-4524 and 234-4069 with exact fit and function.
• Brand New Build — Not remanufactured; ensures long-term reliability and performance.
• Wide Compatibility — Also fits 2003–2005 Toyota Echo 1.5L models.
• Plug-and-Play — No splicing or adapters required during installation.

Who is 2Pcs Up & Downstream Oxygen Sensor For 04-06 Scion xA xB 1.5L 234-4524 234-4069 for?

This sensor set is ideal for Scion xA and xB owners experiencing check engine lights, poor fuel economy, or emissions test failures due to faulty O2 sensors. It’s perfect for DIY mechanics with basic tools who want a reliable, cost-effective replacement without visiting a dealership. It also suits repair shops looking for affordable, high-quality aftermarket parts for Toyota-based vehicles.

How does 2Pcs Up & Downstream Oxygen Sensor For 04-06 Scion xA xB 1.5L 234-4524 234-4069 compare?

Compared to pricier dealership sensors, this set offers identical fit and function at a fraction of the cost. Unlike universal sensors requiring wire cutting, these are direct-fit with factory connectors. While not as advanced as wideband O2 sensors used in performance tuning, they outperform remanufactured units in durability and accuracy for daily-driven vehicles.