NTK 25569 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of NTK Direct Fit Oxygen Sensor 25569

The NTK Direct Fit Oxygen Sensor 25569 is engineered for precise emission control in select BMW and Land Rover models. Designed as a heated oxygen sensor with a specific fit, it ensures accurate air-fuel mixture readings to maintain optimal engine performance and reduce emissions.

• Heated oxygen sensor type for faster response times
• Specific fit for BMW and Land Rover vehicles
• Threaded mounting with 18mm thread diameter
• Four-wire configuration for reliable signal transmission
• 13.75-inch wiring harness length for proper installation

Detailed Product Features and Specifications

This NTK oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor accuracy and reducing emissions during cold starts. The sensor’s 18mm threaded mounting type ensures secure installation in the exhaust system. With a 13.75-inch wiring harness length and four wires, it provides a direct fit solution without the need for modifications. The specific fitment is designed to match the OEM specifications for various BMW models such as the 318i, 325i, 330i, 525i, and M5, as well as Land Rover models including Range Rover, X3, and X5.

About the NTK Direct Fit Oxygen Sensor Line

The Direct Fit Oxygen Sensor line by NTK is developed to provide exact replacement sensors that meet or exceed OEM standards. These sensors are engineered for direct installation without additional adapters or splicing, ensuring compatibility and reliable performance. The 25569 part number is part of this line, offering a precise fit and function for emission control systems in specific BMW and Land Rover vehicles.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel ratio management
• Helps resolve check engine light codes related to oxygen sensor faults
• Improves fuel efficiency by providing correct feedback to the engine control unit
• Reduces harmful emissions by ensuring proper catalytic converter operation
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the NTK oxygen sensor 25569, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length of 13.75 inches is sufficient for your vehicle’s routing. Confirm the 18mm threaded mounting matches the exhaust port. Avoid over-tightening to prevent damage to the sensor or exhaust threads.

Quality Assurance and Warranty

NTK oxygen sensors undergo rigorous testing to meet emission control standards and OEM specifications. The Direct Fit Oxygen Sensor 25569 is manufactured with durable materials to withstand harsh exhaust conditions. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship to ensure long-term reliability.