NTK 25190 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Downstream Use

The NTK 25190 is a direct fit heated oxygen sensor built for specific downstream applications. It is engineered for 2006-2008 Chevrolet Aveo, 2006-2008 Chevrolet Aveo5, 2006-2008 Pontiac Wave, 2006-2008 Suzuki Swift+, and 2006-2007 Pontiac Wave5 coverage, with OE-style fit, form, and function.

NTK’s Direct Fit Oxygen Sensor line focuses on application-specific replacement parts that match original sensor requirements for import and domestic vehicles. The 25190 uses a threaded mounting design, 18 mm thread diameter, 4-wire configuration, and 12-inch wiring harness length for a direct replacement approach.

Key Features

• Direct fit oxygen sensor for specific downstream applications
• Heated sensor design for faster operating response
• 4-wire configuration
• Threaded mounting type with 18 mm thread diameter
• 12-inch wiring harness length
• OE-style replacement for select Chevrolet, Pontiac, and Suzuki models

Product Details

NTK 25190 is part of the Direct Fit Oxygen Sensor line, a product range focused on application-matched replacement sensors for vehicles that require precise sensor output and connector compatibility. NTK manufactures oxygen sensors with ceramic-based technology and extensive production testing to help maintain quality and reliability that meet or exceed OE specifications. This part cross-references Bosch 15149 for the same application.

Use this sensor when servicing downstream oxygen sensor positions on the listed vehicles. Fits 2006-2008 Chevrolet Aveo, downstream; Fits 2006-2008 Chevrolet Aveo5, downstream; Fits 2006-2008 Pontiac Wave, downstream; Fits 2006-2008 Suzuki Swift+, downstream; Fits 2006-2007 Pontiac Wave5, downstream. The NTK 25190 is also referenced in aftermarket listings for related OE-style replacement needs on these applications.

What It Helps Address

• Check engine light concerns related to downstream oxygen sensor performance
• Incorrect air-fuel feedback from a worn sensor
• Emissions test failures tied to sensor response issues
• Rough or inconsistent engine management caused by aging sensor output
• Replacement needs after sensor contamination or electrical failure

Installation Notes and Tips

Confirm the downstream sensor position before ordering and match the connector, wire count, and thread size to the original part. Inspect the harness routing and exhaust threads before installation, and verify there is no damage to the mounting location that could affect sealing or sensor readings. Follow the vehicle service procedure for proper removal and installation.

Quality Assurance

NTK is a major original equipment oxygen sensor manufacturer, and this Direct Fit Oxygen Sensor is extensively tested during production to support consistent performance and OE-level specifications. The 25190 is built for specific application coverage and direct replacement use.