NTK 24803 Air / Fuel Ratio Sensor - Upstream

Direct Fit Air/Fuel Ratio Sensor for Honda Accord

NTK 24803 is a direct fit, heated 4-wire air/fuel ratio sensor for select 2003-2007 Honda Accord upstream applications. It is built for Bank 1 Sensor 1 service and uses a specific-fit design for straightforward replacement on the listed vehicle application.

Key Features

• Direct fit 4-wire air/fuel ratio sensor
• Heated sensor design for faster operating response
• Specific fit for the listed Honda Accord application
• 18.000 mm thread diameter with 0.38 thread length
• 16.8 wiring harness length
• No mounting bracket included

Product Details

NTK 24803 is part of the NTK Direct Fit 4-Wire A/F Sensor line, a product line focused on OE-style replacement sensors for import and domestic vehicles. NTK applies ceramic manufacturing expertise and OE application coverage to produce sensors with the fit, form, and function expected for emission control service. This sensor is engineered for the upstream location on the 2003-2007 Honda Accord and is listed for Bank 1 Sensor 1 air/fuel ratio service. This part cross-references DENSO Auto Parts 234-9040 and Spectra Premium OS5278 for the same application.

Common Problems This Sensor Can Address

• Check engine light related to air/fuel ratio sensor performance
• Rough idle caused by inaccurate upstream sensor readings
• Fuel trim issues from a slow or degraded sensor signal
• Emissions test failure tied to sensor response problems
• Driveability concerns on the Honda Accord upstream sensor circuit

Installation Notes and Tips

Verify the vehicle is a 2003-2007 Honda Accord with the upstream Bank 1 Sensor 1 application before ordering. Match the connector, thread size, and harness length to the original sensor, and inspect the exhaust bung threads before installation. Because this is a specific-fit sensor, use the listed application data rather than a universal replacement approach.

Quality Assurance

NTK manufactures oxygen and air/fuel ratio sensors with extensive testing during production to help ensure quality and reliability that meet or exceed OE specifications. The brand is part of the NGK family of products and is recognized as a major OE sensor supplier for import and domestic applications. Compatible with 2003-2007 Honda Accord upstream service, NTK 24803 is built for OE-style replacement performance.