NTK 25195 Oxygen Sensor - Upstream Left

Overview of NTK Direct Fit Oxygen Sensor 25195

The NTK Direct Fit Oxygen Sensor 25195 is designed specifically for select Hyundai and Kia models, including the Magentis, Optima, Rondo, and Santa Fe. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster warm-up and improved efficiency
• Specific fit for Hyundai and Kia vehicles, including Magentis, Optima, Rondo, and Santa Fe
• Threaded mounting type with an 18mm thread diameter for secure installation
• Four-wire configuration for reliable electrical connections
• 8.5-inch wiring harness length for proper reach and fitment

Details on the Direct Fit Oxygen Sensor Product Line

The NTK Direct Fit Oxygen Sensor line is engineered to provide exact replacement sensors that match OEM specifications. This product line focuses on delivering sensors that fit directly into the vehicle’s existing mounting points without modification. The 25195 sensor maintains the integrity of the original emission control system by using a heated sensor element and a threaded mounting design, ensuring compatibility and performance for Hyundai and Kia models.

Technical Description and Features

The NTK 25195 oxygen sensor features a heated sensor type, which allows it to reach operating temperature quickly, reducing emissions during cold starts. It includes four wires, which typically consist of two heater wires and two signal wires, supporting stable sensor operation and accurate data transmission. The sensor’s 18mm threaded mounting type ensures a secure and leak-free fit in the exhaust system. With an 8.5-inch wiring harness length, this sensor is designed to connect seamlessly with the vehicle’s existing wiring harness without the need for extensions or modifications.

Common Applications and Problem Solving

• Restores proper air-fuel ratio readings for Hyundai Magentis, Optima, Rondo, and Santa Fe
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing accurate emissions data
• Helps reduce harmful exhaust emissions by maintaining sensor accuracy
• Prevents engine performance problems caused by faulty oxygen sensors

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use an oxygen sensor socket or appropriate tool for removal and installation
• Apply anti-seize compound to the sensor threads if not pre-coated, avoiding the sensor tip
• Verify the wiring harness length and connector compatibility before installation
• Follow vehicle-specific torque specifications to avoid damage

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The Direct Fit Oxygen Sensor 25195 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region or distributor.