NGK NTK 22135 Oxygen Sensor for OS5465 ES20407 BR3Z9G444A BL8Z9G444A hr

NGK / NTK is the largest manufacturer of oxygen sensors in the world. NTK Oxygen Sensors are designed to maintain optimal fuel efficiency and are supplied with a direct-fit connector similar to those used by the OEM manufacturer for easy installation.

When an oxygen sensor fails, it is no longer communicating with the Engine Control Unit (ECU). The ECU is responsible for strengthening or weakening the fuel delivery through the fuel injectors in order to maintain the most desirable air-fuel ratio, usually close to 14.7 part air to 1 part fuel (14.7:1), also known as the stoichiometric point. When there is no communication between the oxygen sensors and the ECU, the vehicle is programmed to revert to what is known as open-loop mode, in which more fuel is delivered to protect the engine from damage from an over-lean condition. Running in open-loop mode will not only waste fuel, and increase emissions, but will also put undue stress on the three-way catalyst.

• Extensively tested during manufacture to guarantee quality and reliability.
• Supplied with a factory-fitted OE connector for easy installation (non-universal sensors only).
• Precision-manufactured with a sensing element incorporating NTK premier technical ceramic.
• A new NTK oxygen sensor can help lower emissions, improve fuel mileage, improve engine efficiency and extend catalyst life.
• NTK oxygen sensors meet or exceed original equipment specifications and are equipped with waterproof factory-fitted connectors to ensure a perfect fit every time.

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• If you would like to return your new, unopened, and uninstalled part:


1. From within My eBay, click Purchases.
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