Spectra OS5157 Premium Oxygen Sensor OE Replacement

The Spectra Premium OS5157 is a direct-fit, OE-replacement oxygen sensor (O2 sensor) engineered to restore proper exhaust monitoring and fuel management to your vehicle. The oxygen sensor detects O2 concentration in the exhaust stream, communicating air-fuel ratio data back to the ECU so the engine can continuously optimize combustion efficiency, fuel economy, and emissions output. A failed or degraded O2 sensor can reduce fuel economy, cause rough idle, and trigger check engine lights — making timely replacement critical.

Key Features:

• Designed and manufactured to OE specifications for a direct, no-modification replacement
• Robust sensing element built in a dust-free, climate-controlled environment for consistent accuracy
• Manufactured under ISO 9001 and TS16949 quality management standards from raw materials through final inspection
• Exact electrical connector match to the vehicle's wiring harness for plug-and-play installation
• Waterproof connectors resistant to car wash spray, puddle water, dust, and environmental exposure
• Anti-seize coating pre-applied to threads for easy installation and future serviceability
• Protective cap shields the sensing element from dirt and contamination during shipping and pre-install storage
• 100% performance tested prior to shipment to meet vehicle-specific requirements
• All installation accessories included (rubber grommets, tie wraps, push-in clips)
• Spectra part number engraved directly on the part for easy identification
• Brand new unit — no core charge required

Spectra Premium oxygen sensors help improve engine performance, maintain optimal fuel economy, and reduce exhaust emissions. Each sensor is 100% tested to meet or exceed original equipment performance standards, giving you confidence in every mile.