NTK 25189 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor for Select GM, Suzuki, and Pontiac Models

NTK 25189 is a direct fit heated oxygen sensor built for specific upstream applications. It is engineered with a threaded mounting design, 4-wire configuration, and 15.75-inch wiring harness length for a factory-style replacement on select vehicles including the Chevrolet Aveo, Chevrolet Aveo5, Pontiac Wave, Pontiac Wave5, Suzuki Forenza, and Suzuki Swift+.

Key Features

• Direct fit oxygen sensor for specific applications
• Heated sensor design for faster operating response
• 4-wire configuration
• 18 mm thread diameter
• Threaded mounting type
• 15.75-inch wiring harness length
• Upstream Bank 1 Sensor 1 location on listed vehicles

Product Details

NTK Direct Fit Oxygen Sensor 25189 is part of NTK’s OE-focused sensor line, built with ceramic manufacturing expertise and application-specific coverage. NTK produces oxygen sensors with controlled ceramic components from raw material through finished product, and the brand supplies original equipment oxygen sensors globally. This sensor is manufactured and tested to meet or exceed OE specifications for fit, form, and function. For shoppers searching for an upstream oxygen sensor for a 2006-2013 Chevrolet Aveo or a 2006-2008 Suzuki Forenza, NTK 25189 provides a direct replacement path without universal-fit guesswork.

This part cross-references Bosch 15148 and DENSO Auto Parts 234-4293 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel mixture readings from a failing sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Rough idle or drivability issues tied to sensor signal degradation
• Emission test failures linked to oxygen sensor faults

Installation Notes and Fitment

Fits 2006-2013 Chevrolet Aveo, upstream. Fits 2006-2008 Chevrolet Aveo5, upstream. Fits 2006-2008 Pontiac Wave, upstream. Fits 2006-2008 Suzuki Forenza, upstream. Fits 2006-2008 Suzuki Swift+, upstream. Fits 2006-2007 Pontiac Wave5, upstream. Confirm Bank 1 Sensor 1 placement and connector routing before installation. The threaded mounting design and specific-fit harness help support a direct replacement on the listed applications.

Quality Assurance

NTK manufactures and tests its oxygen sensors to meet or exceed OE specifications. As an OE supplier with extensive application coverage, NTK supports import and domestic vehicles with sensor technology built for consistent fit and reliable operation.