{"product_id":"ngk-0087295945780","title":"NGK OZA721-EE51-94578 Oxygen Sensor 94578","description":"\u003cp\u003e【NGK OZA721-EE51-94578 Oxygen Sensor 94578 O2】\n\u003cbr\u003e■Product Description\n\u003cbr\u003eNTK O2 Sensor detects ideal air-fuel ratio\n\u003cbr\u003eAdvanced control is required to reduce harmful substances (HC, CO, NOx) in exhaust gas, and O2 sensors play an important role in detecting the oxygen concentration in exhaust gas and providing feedback to the ECU*1.\n\u003cbr\u003eNTK O2 sensors detect the oxygen concentration in the exhaust gas and feed it back to the ECU so that the fuel-air mixture ratio (air-fuel ratio) becomes the optimal stoichiometric air-fuel ratio \"λ (lambda) = 1*2\". If the ECU receives a signal from the O2 sensor indicating that the fuel is rich relative to the stoichiometric air-fuel ratio, it thins the fuel. If it is lean, it enriches the fuel, thereby controlling it near the stoichiometric air-fuel ratio, which most effectively purifies harmful substances in the exhaust gas. Thus, NTK O2 sensors are an important component in reducing harmful substances in exhaust gas. \u003c\/p\u003e\n\n\u003cp\u003eSpecifications\n\u003cbr\u003e【Features and Structure】\n\u003cbr\u003eZirconia elements have the characteristic of generating electromotive force due to differences in oxygen concentration at temperatures exceeding 300°C. Utilizing this characteristic, zirconia type sensors detect the difference in oxygen concentration between the inside and outside of the element (atmosphere and exhaust gas) and feed back to the ECU whether the fuel is rich or lean relative to the stoichiometric air-fuel ratio.\n\u003cbr\u003eWideband air-fuel ratio sensors can detect how rich or lean the fuel is relative to the stoichiometric air-fuel ratio. Therefore, more precise engine control is possible than with zirconia O2 sensors. It also enables engine control at air-fuel ratios other than the stoichiometric air-fuel ratio (λ=1), such as lean burn control. In addition, there are early-activation wideband air-fuel ratio sensors that maintain the characteristics of conventional wideband air-fuel ratio sensors while improving heat resistance and durability, and achieve early activation (starts operating within 5 seconds after the engine key is turned ON) through a integrated structure of the element and heater.\n\u003cbr\u003e【Necessity of replacement】\n\u003cbr\u003eO2 sensors are constantly exposed to exhaust gas exceeding 600°C and combustion byproducts adhere to them, operating in a very harsh environment.\n\u003cbr\u003eUsing a deteriorated or damaged O2 sensor can lead to various problems.\n\u003cbr\u003eFrom a new car, 5 years or 80,000 km or more*\n\u003cbr\u003e*Varies depending on how the car is used.\n\u003cbr\u003eCompatible manufacturer: Nissan\n\u003cbr\u003eCompatible genuine part number: 22690-6N206\u003c\/p\u003e\n\n\u003cp\u003e■Notes on images\n\u003cbr\u003e*Images are for illustration purposes only. Includes products with different sizes and colors. Product designs and specifications are subject to change without notice. Please understand.\u003c\/p\u003e\n\n\u003cp\u003e■Precautions\n\u003cbr\u003eO2 sensors are designed specifically for each vehicle model and engine, so they are not interchangeable with other types.\n\u003cbr\u003e(1) Always stop the engine before inspecting, replacing, or adjusting.\n\u003cbr\u003e(2) Inspect and replace according to the service manual of each automobile manufacturer.\n\u003cbr\u003e(3) Use the correct part number O2 sensor as described in this document.\n\u003cbr\u003e(4) If used in modified vehicles, it may not function properly.\n\u003cbr\u003e(5) Be careful, as dropping or impacting the sensor may crack the internal ceramic element.\n\u003cbr\u003e(6) Anti-seize compound is applied to the threaded part of the sensor. To prevent dust from adhering,\n\u003cbr\u003eremove the protective cap just before installing the sensor.\n\u003cbr\u003e(7) Do not wipe off the anti-seize compound.\n\u003cbr\u003e(8) If anti-seize compound gets on your hands or other surfaces, wash it off immediately with water.\n\u003cbr\u003e➈ Do not twist or bend the lead wire fixed to the main unit.\n\u003cbr\u003e➉ Do not use an impact wrench when installing the sensor.\n\u003cbr\u003e(11) When installing the sensor, screw it in by hand and then use a wrench to tighten it to the following approximate tightening torque.\n\u003cbr\u003e【Part numbers starting with \"LZA\", \"OZA\", \"OZR\", \"UAR\"】:\n\u003cbr\u003eSensor with thread diameter 18mm, pitch 1.5mm, Hex 22mm = approx. 45-55 N·m (4.5-5.5 kgf·m)\n\u003cbr\u003e(12) Do not allow the lead wires or connectors to come into contact with the exhaust manifold or other high-temperature parts.\n\u003cbr\u003e(13) Route the lead wires in the same way as the original and securely attach the connector.\n\u003cbr\u003e(14) Depending on the condition of your vehicle, replacing only the O2 sensor may not resolve the problem.\n\u003cbr\u003e(15) When the MIL illuminates, before (or after) replacing the sensor, follow the service manual, etc.,\n\u003cbr\u003eand be sure to clear (reset) the diagnostic (self-diagnosis\/OBD) error codes.\n\u003cbr\u003eFailure to clear the error codes may lead to problems such as the MIL not turning off. \u003c\/p\u003e","brand":"日本特殊陶業(NGK)","offers":[{"title":"Default Title","offer_id":46119107395819,"sku":"ngk-0087295945780","price":15167.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/ngk-o2sensor_85d7b6d6-618d-4100-b81f-a44eb2364b57.jpg?v=1737444458","url":"https:\/\/bikeman.jp\/en\/products\/ngk-0087295945780","provider":"バイクマン","version":"1.0","type":"link"}