NTK 25619 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

NTK Direct Fit Oxygen Sensor for Jaguar and Volvo

NTK Oxygen Sensor 25619 is a direct fit, heated oxygen sensor built for specific downstream applications on select Jaguar and Volvo vehicles. It is designed for OE-style fit, form, and function, with a threaded mounting design and a 4-wire configuration for precise replacement service.

Key Features

• Direct Fit Oxygen Sensor from NTK’s Direct Fit Oxygen Sensor line
• Heated sensor design for downstream exhaust monitoring
• Specific fit application for select Jaguar XK, XKR, XKR-S, XF, XFR, and XJ models, plus Volvo XC90, S80, V70, S40, V50, and S60
• 4-wire construction with 34.5-inch wiring harness length
• 18 mm threaded mounting type for OE-style installation
• Built by NTK, a major original equipment oxygen sensor manufacturer

Detailed Description

NTK part number 25619 is engineered for downstream oxygen sensor replacement on vehicles such as the 2010-2015 Jaguar XK and XKR, the 2010-2012 Jaguar XF, XFR, and XJ, and the 2007-2014 Volvo XC90. It also covers additional Volvo applications including the S80, V70, S40, V50, and S60 in listed downstream positions. This OE-equivalent design supports accurate exhaust feedback in the emissions control system while maintaining the original sensor layout and connector style expected for direct replacement service.

NTK is known for oxygen sensor manufacturing across import and domestic applications, and this product line is built with controlled ceramic technology and manufacturing testing to meet OE-level specifications. Part number 25619 is a practical choice when replacing a worn downstream sensor on Jaguar XK or Volvo XC90 applications where correct fitment and sensor response matter.

This part cross-references Bosch 15695 for the same application.

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Fault codes tied to catalyst monitoring or rear sensor signal issues
• Rough idle or drivability concerns caused by inaccurate exhaust feedback
• Failed emissions inspection due to a worn oxygen sensor
• Sensor response problems from age, heat, or contamination

Installation Notes and Tips

Install NTK 25619 in the exact downstream position listed for your vehicle, including downstream right, downstream left, or downstream locations where specified. Confirm connector style, wire count, and thread diameter before installation, and verify the application against the vehicle’s year, make, model, and sensor position. For Jaguar XK, XKR, XKR-S, XF, XFR, and XJ as well as Volvo XC90, S80, V70, S40, V50, and S60 applications, match the OE-style routing and mounting location to avoid fitment issues.

Quality Assurance

NTK manufactures oxygen sensors with extensive testing during production to help ensure reliability and OE-spec performance. As part of the NGK family of products, NTK supports original equipment-level coverage and application-specific sensor design for import and domestic vehicles.