Denso 234-4934 Oxygen Sensor - Downstream

Denso OE Style Oxygen Sensor for Jetta

The Denso 234-4934 is an OE-style heated oxygen sensor built for specific-fit replacement on select Volkswagen applications. It is engineered for the downstream position on 2013-2014 Volkswagen Jetta models and uses a threaded mounting design with a 4-wire male connector for direct replacement service.

Denso’s OE Style line focuses on exact-fit replacement parts built to match original equipment dimensions and electrical requirements. For Volkswagen Jetta oxygen sensor replacement, this helps simplify diagnosis and restore proper exhaust feedback performance with the correct part number, 234-4934.

Key Features

• Specific-fit heated oxygen sensor for downstream placement
• OE-style replacement for 2013-2014 Volkswagen Jetta
• 4-wire design with male connector
• Threaded mounting type with 0.708 in. thread diameter
• Wiring harness length: 16.26 in.
• Built to OE standards for fit and electrical consistency
• Includes Denso aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination

Detailed Description

The Denso 234-4934 oxygen sensor is designed for direct replacement in the downstream exhaust location on 2013-2014 Volkswagen Jetta models. As a heated oxygen sensor, it reaches operating temperature quickly and supports accurate exhaust monitoring once the engine is running. The specific-fit design, threaded mounting, and OE-style connector layout help ensure the sensor matches the original application without modification.

This part cross-references Bosch 16028 for the same application. It also cross-references Volkswagen 04E906262J for the same application. If you are searching for a downstream oxygen sensor for Volkswagen Jetta 2013-2014, or need Denso 234-4934 for OE-style replacement service, this part is built for that exact use case.

What It Helps Address

• Check engine light related to downstream oxygen sensor faults
• Incorrect exhaust feedback readings
• Reduced fuel economy caused by a failing sensor
• Rough or inconsistent engine performance tied to sensor degradation
• Contamination-related sensor wear from silicone or lead exposure

Installation Notes and Tips

Verify the downstream position before ordering and confirm connector style, wire count, and thread size against the original sensor. The 2013-2014 Volkswagen Jetta fitment listed here is specific to the downstream location, so the sensor should be matched to that exact position. Inspect the harness routing and connector condition during replacement to help avoid wiring strain or poor electrical contact.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards. The design is precision built for first-time fit and consistent replacement performance, with contamination protection built into the sensor construction for added durability.