Denso 234-4791 Oxygen Sensor

OE-Style Oxygen Sensor for Jaguar and Land Rover

Denso 234-4791 is an OE Style heated oxygen sensor built for direct replacement in select Jaguar and Land Rover applications. It is engineered for a specific fit, with a 4-wire male connector and threaded mounting for downstream locations on models such as Jaguar F-Type, XF, XJ, and Land Rover Range Rover Sport.

The Denso OE Style line focuses on exact replacement fitment and OE-level construction. This sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management, fuel control, and long service life.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design for direct replacement installation
• 4-wire configuration with male connector
• Threaded mounting with 0.708 in. thread diameter
• Wiring harness length: 25.67 in.
• OE Style construction for Jaguar and Land Rover applications
• Cross-references Bosch 16032 and NTK 25753 for the same application

Detailed Description

Denso 234-4791 is a replacement oxygen sensor for 2013-2024 Jaguar and Land Rover vehicles with downstream sensor locations, including Jaguar F-Type, XF, XJ, XJR, XJR575, XFR, XFR-S, XE, and Land Rover Discovery, LR4, Range Rover, and Range Rover Sport. It is built to match OE specifications for fit and function, making it a practical choice for drivers servicing emissions and fuel-control systems on these platforms.

As part of Denso’s OE Style product line, this sensor is precision built for first-time fitment and consistent signal performance. The protective aluminum oxide trap layer adds resistance to contamination that can shorten sensor life, helping maintain accurate exhaust feedback in demanding driving conditions. Part number 234-4791 is a direct replacement option for downstream sensor service on multiple Jaguar and Land Rover models.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Faulty downstream exhaust readings
• Reduced fuel economy from inaccurate air-fuel feedback
• Emissions test failures tied to sensor response issues
• Rough engine operation caused by degraded sensor output

Installation Notes and Tips

Verify the vehicle’s exact year, model, and sensor position before ordering, since this part is listed for downstream, downstream left, downstream right, and center locations depending on application. Confirm connector style, wire count, and thread size against the original sensor before installation. For best results, inspect the exhaust bung and wiring routing during replacement to ensure proper seating and secure harness placement.

Quality Assurance

Denso manufactures and tests this oxygen sensor to strict OE standards for replacement accuracy and dependable operation. The OE Style design is intended to deliver the right fit and function for the listed Jaguar and Land Rover applications, with construction focused on durability and consistent performance.