NTK 24291 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor for Acura and Honda

NTK 24291 is a direct fit heated oxygen sensor built for specific upstream applications on select Acura and Honda models. It is engineered for Bank 1 Sensor 1 placement, with OE-style fit, form, and function for accurate exhaust feedback.

Key Features

• Direct fit, specific application oxygen sensor
• Heated sensor design for faster operating response
• 4-wire configuration with a 21.0000 wiring harness length
• Threaded mounting type with 18.000 thread diameter
• Built by NTK, a major OE oxygen sensor supplier
• Cross-reference: Bosch 13532

Product Details

NTK Direct Fit Oxygen Sensor part number 24291 is part of the brand’s OE-focused oxygen sensor line, developed for import and domestic coverage. NTK uses ceramic manufacturing expertise and extensive production testing to help maintain consistent sensor performance and dimensional accuracy. For drivers searching for an upstream oxygen sensor for 2001-2003 Acura EL or 2001-2003 Honda Civic, this sensor is a direct replacement for the original Bank 1 Sensor 1 location.

Fits 2001-2003 Acura EL, upstream. Fits 2001-2003 Honda Civic, upstream. This part cross-references Bosch 13532 for the same application.

Common Issues This Sensor May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback from the upstream sensor
• Reduced fuel control accuracy from a worn heated O2 sensor
• Fault codes tied to Bank 1 Sensor 1 operation
• Slow sensor response in emissions monitoring

Installation Notes and Tips

Confirm the vehicle’s upstream Bank 1 Sensor 1 location before installation. Match the threaded mounting style, wire count, and harness length to the original sensor, and inspect the connector and exhaust bung condition during replacement. For best results, clear diagnostic trouble codes after installation and verify proper sensor operation with a scan tool.

Quality Assurance

NTK manufactures oxygen sensors with OE application coverage and production testing to help meet or exceed original equipment specifications. As part of the NGK family of products, NTK focuses on sensor technology and application-specific fitment for reliable replacement performance.