NGK 25198 NTK Oxygen Sensor O2 Sensor 4-Wire Heated M18x1.5 Narrow Band

The NGK NTK 25198 oxygen sensor (also called an O2 sensor or lambda sensor) monitors the oxygen content of the exhaust gas and reports it to the engine computer. The ECU uses this signal to adjust the air/fuel mixture and ignition control. This keeps the engine in its optimum operating range, helps lower emissions, and supports fuel economy. A worn sensor can trigger a check-engine light, so replacing it helps restore proper fuel management.

Key Features:

• Narrow-band, heated zirconia sensing element with a ceramic heater for fast light-off and response
• Dual-coated platinum element for durability and quick response
• Stainless steel construction that resists corrosion and abrasion
• Factory-fitted, waterproof OE-style connector for easy installation
• 4-wire design with an attached wiring harness, about 17.5 in. (446 mm) long
• Thread-in mounting with an M18 x 1.5 thread and a 22 mm (7/8 in.) hex
• Extensively tested during manufacture for quality and reliability
• Sold individually

NTK is a leading supplier of OEM oxygen sensors. This sensor is built to OE specifications and meets or exceeds emission standards. It comes with installation instructions.