Sequoia Replacement Oxygen (O2) Sensors

Sequoia Replacement Oxygen (O2) Sensors

Keep your engine running efficiently, restore lost fuel economy, and clear your Check Engine Light with premium replacement oxygen sensors. Precision-crafted to meet or exceed strict OEM standards, these sensors are specifically engineered to handle the thermal and mechanical demands of modern Toyota engines.

High Quality Construction

• Premium Materials: Built using high-grade stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, and pure platinum/ceramics.
• Advanced Protection: Features a dual-layer defensive shield, an integrated aluminum oxide trap layer, and a porous PTFE filter inside a rugged stainless steel housing.
• Maximum Longevity: Engineered for superior resistance to exhaust contamination, thermal shock, and high-vibration off-road environments.

Important Ordering & Fitment Guide

Please review the definitions below and refer to the fitment chart to ensure you select the correct part numbers for your vehicle. This electrical component is non-returnable, so verifying your exact vehicle configuration before ordering is critical.

• Upstream Sensors (Pre-Catalytic): Located in the exhaust path before the catalytic converter. These handle the vital air/fuel ratio measurements for engine tuning.
• Downstream Sensors (Post-Catalytic): Located after the catalytic converter. These monitor catalyst efficiency and emissions performance.

How to Order: 

• Locate your vehicle's year and engine type on the chart below.
• Note the required part numbers for your desired placement. (Upstream or Downstream/Driver or Passenger side).
• Use the drop-down menus above to make your specific part selections.
• Note replacing all of them? Simply select "No, Thanks" for any drop-down position you do not wish to purchase.