Spectra Premium OS6249 Heated Oxygen Sensor 4-Wire Thimble O2 Sensor

The Spectra Premium OS6249 is a direct-fit, heated replacement oxygen sensor (O2 sensor) engineered to restore proper exhaust gas monitoring and fuel management performance. Designed and built to OE specifications, this sensor integrates seamlessly into the vehicle's engine management system with no core charge required.

The oxygen sensor monitors O2 concentration in the exhaust stream, communicating the difference between exhaust gas and ambient air back to the ECU to help the onboard computer maintain optimal fuel efficiency. A failing O2 sensor can reduce fuel economy, cause rough engine idle, and disrupt ignition timing.

Key Features:

• Sensor Type: Heated thimble-style oxygen sensor
• Connector: Rectangular male connector, 4-terminal
• Overall Length: 21-1/4 inches
• Position: Top connector side
• Anti-seize coating applied to threads for easier installation and removal
• Protective cap shields the sensing element during shipping and storage
• 100% performance and quality tested prior to packaging
• Manufactured under ISO 9001 and TS16949 quality management standards
• Precise electronic components assembled in a dust-free environment
• Completely new unit — no core charge required
• Includes all accessories needed for installation

Spectra Premium oxygen sensors are built using a controlled electronic manufacturing process with raw materials stored in a constant-temperature environment to ensure consistent quality. Extensive computerized testing validates real-world performance before every unit ships.