NTK 24471 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Prius C

NTK 24471 is a direct fit heated oxygen sensor for the downstream position on select Toyota Prius C models. Built for specific-fit replacement, it supports accurate exhaust monitoring and OE-style sensor performance for 2012-2019 Toyota Prius C applications.

Key Features

• Direct fit, specific application oxygen sensor
• Heated sensor design for faster operating response
• 4-wire configuration with 17.75 in. wiring harness length
• Threaded mounting with 18 mm thread diameter
• Built to meet or exceed OE specifications during manufacturing
• Compatible with downstream B1S2 oxygen sensor applications on Toyota Prius C

Product Details

NTK 24471 is part of the Direct Fit Oxygen Sensor line, created for straightforward OE-style replacement on import and domestic vehicles. For 2012-2019 Toyota Prius C, downstream, this sensor is engineered to match the original mounting style, connector layout, and signal requirements needed for proper exhaust feedback. The heated design helps the sensor reach operating temperature efficiently, while the specific-fit construction supports accurate installation on the intended application. This part cross-references Bosch 18039 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to downstream oxygen sensor performance
• Fault codes tied to B1S2 sensor signal irregularities
• Reduced exhaust monitoring accuracy on Toyota Prius C models
• Replacement needs after sensor aging, contamination, or electrical failure
• Fitment problems caused by using a universal sensor instead of a direct-fit unit

Installation Notes and Tips

Verify the vehicle is a 2012-2019 Toyota Prius C with the downstream oxygen sensor location before installation. Confirm the 4-wire connector, threaded mounting style, and harness length match the original sensor. Use proper oxygen sensor service tools and follow factory service procedures to avoid thread damage or wiring strain.

Quality Assurance

NTK manufactures oxygen sensors with OE-focused testing and application coverage. As part of the NGK family of products, NTK uses controlled ceramic technology and manufacturing validation to support fit, form, and function for direct replacement use.