{"product_id":"ntk-27102-air-fuel-ratio-sensor-upstream-left","title":"NTK 27102 Air \/ Fuel Ratio Sensor - Upstream Left","description":"\u003ch2\u003eDirect-Fit Air\/Fuel Ratio Sensor\u003c\/h2\u003e\u003cp\u003eThis NTK air\/fuel ratio sensor is a specific-fit, heated wide-band replacement built for precise fuel control and emissions monitoring. It uses a 5-wire design with a rectangular female connector and blade terminals for a direct-fit installation on supported applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWide-band sensor technology provides a linear signal for accurate air-fuel measurement.\u003c\/li\u003e\n\u003cli\u003eHeated design helps the sensor reach operating temperature quickly.\u003c\/li\u003e\n\u003cli\u003eSpecific-fit construction matches the original application layout.\u003c\/li\u003e\n\u003cli\u003eM18 x 1.5 thread size with 7\/8 in. hex for proper service fitment.\u003c\/li\u003e\n\u003cli\u003eBlack connector with 29.75 in. harness length for OE-style routing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNTK 27102 is a direct-fit air\/fuel ratio sensor engineered for vehicles that rely on wide-band feedback to fine-tune combustion. Unlike a conventional switching oxygen sensor, this type sends a linear output so the ECU can make continuous corrections to the air-fuel mixture. That helps maintain stoichiometric operation, supporting efficient combustion and lower emissions. NTK 27102 is a standard replacement part that reflects the brand’s OE sensor manufacturing background and ceramics expertise.\u003c\/p\u003e\u003cp\u003eCompatible with Volkswagen Atlas and Volkswagen Atlas Cross Sport applications, this sensor is listed for upstream left placement. The fitment includes 2018-2023 Volkswagen Atlas, upstream left, and 2020-2023 Volkswagen Atlas Cross Sport, upstream left. This part cross-references DENSO Auto Parts (e.g., 234-5737) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestoring accurate air-fuel ratio feedback when the original sensor response slows down.\u003c\/li\u003e\n\u003cli\u003eAddressing check engine light concerns tied to mixture control or sensor performance.\u003c\/li\u003e\n\u003cli\u003eCorrecting poor fuel economy caused by inaccurate exhaust feedback.\u003c\/li\u003e\n\u003cli\u003eSupporting emissions system operation when the sensor signal is no longer reliable.\u003c\/li\u003e\n\u003cli\u003eImproving drivability when the engine control module cannot maintain proper mixture control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the M18 x 1.5 thread size, 5-wire configuration, and upstream left placement before installation. Confirm connector shape and terminal style against the original sensor to ensure proper electrical connection. Use the vehicle’s service information for torque and routing guidance, and inspect the harness path for heat or abrasion damage during replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNTK is a major OEM oxygen sensor supplier, and this 27102 sensor is built with wide-band technology and OE application support in mind. Its direct-fit design and standard replacement grade make it a practical choice for restoring factory-style sensor function.\u003c\/p\u003e","brand":"NTK","offers":[{"title":"Default Title","offer_id":53621587017909,"sku":"BFPZ-27102","price":87.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NO_27102_Fro.jpg?v=1793168227","url":"https:\/\/www.partcatalog.com\/products\/ntk-27102-air-fuel-ratio-sensor-upstream-left","provider":"PartCatalog","version":"1.0","type":"link"}