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Denso 234-4474 Oxygen Sensor - Downstream or Downstream Right
| Brand | Denso 234-4474 |
|---|---|
| Position | Downstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 47.24 |
| Product line | OE Style |
| Fits | Porsche · 23 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate emissions control and engine performance.
Aluminum oxide trap layer. Protects the ceramic element from silicone and lead contamination.
Cross-references Bosch 16140, Bosch 16301 and NTK 25714 for the same application. See all 8.
Denso OE Style Oxygen Sensor for Porsche
Denso 234-4474 is an OE-style heated oxygen sensor built for specific-fit replacement on select Porsche applications. It is engineered for accurate exhaust feedback, stable engine management, and a first-time fit on downstream locations.
Key Features
- Heated oxygen sensor with specific fitment
- 4-wire design with female connector
- Threaded mounting type with 0.708 in. thread diameter
- 47.24 in. wiring harness length for proper routing
- OE-style replacement built to strict original-equipment standards
- Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
OE-Style Design and Performance
Denso’s OE Style line focuses on direct replacement fit and factory-level sensor performance. Part number 234-4474 is precision built for specific applications, including Porsche Boxster, Porsche Cayman, and Porsche Panamera downstream positions. The sensor is designed to deliver the correct signal response for engine control, helping maintain proper air-fuel management and exhaust monitoring. This part cross-references Bosch 16140 and NTK 25714 for the same application.
Vehicle Fitment
- Fits 2013-2016 Porsche Boxster, downstream.
- Fits 2014-2016 Porsche Cayman, downstream.
- Fits 2010-2016 Porsche Panamera, downstream right.
- Fits 2015-2016 Porsche Panamera, downstream.
- Fits 2012-2013 Porsche Panamera, downstream.
Common Issues This Sensor Can Address
- Check engine light related to oxygen sensor performance
- Incorrect exhaust oxygen readings sent to the engine control system
- Reduced fuel economy caused by a failing downstream sensor
- Rough or inconsistent engine operation tied to sensor degradation
- Contamination-related sensor failure from silicone or lead exposure
Installation Notes
Confirm the connector style, wire count, and threaded mounting before installation. Route the 47.24 in. harness away from hot exhaust components and verify the downstream location matches the vehicle application. For Porsche Boxster, Cayman, and Panamera fitment, compare the original sensor position and connector layout to part number 234-4474 before replacement.
Quality Assurance
Denso manufactures and tests these oxygen sensors to strict OE standards for consistent replacement quality and reliable fitment. The OE-style construction is intended to match original sensor requirements on the listed Porsche applications.
| Year | Make | Model | Transmission | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Porsche | Boxster | — | — | Downstream | OE Style |
| 2016 | Porsche | Cayman | — | — | Downstream | OE Style |
| 2016 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2016 | Porsche | Panamera | — | ELECTRIC/GAS | Downstream | OE Style |
| 2016 | Porsche | Panamera | — | — | Downstream | OE Style |
| 2015 | Porsche | Boxster | — | — | Downstream | OE Style |
| 2015 | Porsche | Cayman | — | — | Downstream | OE Style |
| 2015 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2015 | Porsche | Panamera | Automatic Dual Clutch | — | Downstream Right | OE Style |
| 2015 | Porsche | Panamera | Automatic | — | Downstream Right | OE Style |
| 2015 | Porsche | Panamera | — | ELECTRIC/GAS | Downstream | OE Style |
| 2015 | Porsche | Panamera | — | — | Downstream | OE Style |
| 2014 | Porsche | Boxster | — | — | Downstream | OE Style |
| 2014 | Porsche | Cayman | — | — | Downstream | OE Style |
| 2014 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2014 | Porsche | Panamera | — | ELECTRIC/GAS | Downstream Right | OE Style |
| 2013 | Porsche | Boxster | — | — | Downstream | OE Style |
| 2013 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2013 | Porsche | Panamera | — | — | Downstream | OE Style |
| 2012 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2012 | Porsche | Panamera | — | — | Downstream | OE Style |
| 2011 | Porsche | Panamera | — | — | Downstream Right | OE Style |
| 2010 | Porsche | Panamera | — | — | Downstream Right | OE Style |
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