GRIZZLY AUTO O2 Sensor Upstream & Downstream for Subaru Forester/XV Crosstrek/Impreza – 234-9109/234-4513 (2 Pcs)

Overview

Replace your Subaru’s oxygen sensors with GRIZZLY AUTO’s Upstream and Downstream O2 Sensor set. This two‑sensor kit is designed for Forester 2.5L models (2011–2013), XV Crosstrek 2.0L (2013–2014), and Impreza 2.0L (2012–2014). It ships as a 2‑piece pack to cover both sensing points, helping you restore a clean, responsive driving experience while maintaining alignment with your vehicle’s original sensor layout.

Key Fitment and Compatibility

Replacement Part Numbers include 234-9109, 2349109, 234-4513, 2344513, 22641-AA610, 22641AA610, 24851, 18081, 22690-AA96A, 22690-AA960, 22690AA96A, 22690AA960, and 18075. Before purchasing, compare your current sensor plug and connector to the product images to ensure a precise match for your specific model.

Why choose GRIZZLY AUTO O2 Sensors?

• Durable construction: a stainless steel valve body with double laser welding resists heat and corrosion, helping the sensors stand up to challenging driving conditions.
• High-temperature tolerance: designed to perform reliably in environments with elevated exhaust temperatures, helping sensors respond quickly.
• Two sensors in one kit: upstream and downstream coverage in a single box for easier replacement planning and installation.

Potential Benefits and Real‑World Use

Replacing aging or faulty O2 sensors can support smoother engine behavior and a more stable fuel-air mix. While results vary by vehicle history and driving style, customers often notice a more predictable idle, steadier acceleration, and a potential shift in fuel consumption trends when the sensor readings are restored to normal ranges.

• Improved fuel ratio control may contribute to better fuel economy under certain driving conditions.
• Engine power delivery and stability can feel more consistent as sensor data helps the ECU adjust timing and mixture.
• Better overall drive quality with quicker, more reliable sensor response in real-world scenarios.

Quality, Support, and Installation Notes

Each O2 sensor undergoes strict factory inspection and quality control before shipping. If you have questions, you can reach our team via email for guidance. Important: please verify plug compatibility and model fitment using the listed part numbers and images prior to purchase.

What’s in the Box

2 O2 sensors (upstream and downstream) designed to replace the originals on the listed Subaru models, with a focus on robust materials and reliable performance across temperature ranges.