Denso 234-4941 Oxygen Sensor - Downstream

OE-Style Downstream Oxygen Sensor

Denso 234-4941 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for downstream exhaust monitoring on select Volvo applications, including Volvo S60, Volvo V60, Volvo V60 Cross Country, Volvo XC60, Volvo S80, and Volvo XC70 models.

With a 4-wire design and a 20.75-inch wiring harness, this Denso oxygen sensor is built to match the original sensor layout for clean integration and reliable signal response. The OE-style construction supports accurate emissions feedback after the catalytic converter.

Key Features

• Heated oxygen sensor for downstream exhaust placement
• Specific-fit design for direct replacement on listed Volvo applications
• 4-wire configuration for OE-style electrical connection
• 20.75-inch wiring harness length
• Precision-built to match original sensor dimensions and fitment
• Denso 234-4941 for select Volvo S60, V60, XC60, XC70, S80, and V60 Cross Country applications

OE-Style Sensor Construction

Denso’s OE Style line is built to the same standards used for original equipment replacement, with attention to fit, signal consistency, and durability. This sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. This part cross-references Volvo 31368570 and 31480393 for the same application.

What This Sensor Helps Address

• Check engine light related to downstream oxygen sensor performance
• Incorrect exhaust oxygen readings after the catalytic converter
• Reduced fuel economy caused by faulty sensor feedback
• Emissions test failures tied to oxygen sensor faults
• Rough or inconsistent engine operation from inaccurate air-fuel data

Installation Notes

Fits 2015-2018 Volvo S60, downstream, loc. after catalyst; OE Style. Fits 2018 Volvo V60, downstream, OE Style. Fits 2015-2017 Volvo V60, downstream, loc. after catalyst; OE Style. Fits 2017 Volvo V60 Cross Country, downstream, OE; Oxygen Sensor - OE Style. Fits 2015-2017 Volvo XC60, downstream, loc. after catalyst; OE Style. Fits 2016 Volvo S80, downstream, ULEV; OE Style. Fits 2015-2016 Volvo XC70, downstream, loc. after catalyst; OE Style. Fits 2015 Volvo S80, downstream, loc. after catalyst; OE Style. Verify connector routing and harness length before installation, and confirm the downstream sensor location matches the original part.

Quality Assurance

Denso manufactures and tests this oxygen sensor to strict OE standards for replacement accuracy and dependable performance. Denso 234-4941 is built as a direct-fit OE-style sensor for the listed Volvo applications.